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Academic literature on the topic 'Thin TiO2 film'

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Published: 9 March 2023
Last updated: 10 March 2023

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Journal articles on the topic "Thin TiO2 film"

1

Kim, Byunguk, Taeseong Kang, Gucheol Lee, and Hyeongtag Jeon. "The effect of an annealing process on atomic layer deposited TiO2 thin films." Nanotechnology 33, no. 4 (November 5, 2021): 045705. http://dx.doi.org/10.1088/1361-6528/ac2f28.

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Abstract In this paper, we study the property changes in TiO2 thin films related to annealing under various conditions. XPS analysis showed that the concentration of oxygen vacancies in TiO2 thin films was reduced by annealing. In the case of annealing in an O2 and air atmosphere, the oxygen vacancy concentration was reduced to the greatest extent as oxygen diffused into the TiO2 thin film and rearrangement of atoms occurred. XRD analysis showed that the anatase structure of annealed TiO2 thin films was clearly present compared to the as-deposited TiO2 thin film. I–V analysis showed that the lower the concentration of oxygen vacancy, the lower the leakage current (O2 annealed TiO2: 10−4 A cm−2) than as dep TiO2 thin film (∼10−1 A cm−2). The dielectric constant of annealed TiO2 thin films was 26–30 which was higher than the as-deposited TiO2 thin film (k ∼ 18) because the anatase structure became more apparent.
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Bathe, Suvarna R., and P. S. Patil. "Electrochemical Behavior of TiO2 Nanoparticle Doped WO3 Thin Films." Journal of Materials 2014 (May 6, 2014): 1–5. http://dx.doi.org/10.1155/2014/642069.

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Nanoparticle TiO2 doped WO3 thin films by pulsed spray pyrolysis technique have been studied on fluorine tin doped (FTO) and glass substrate. XRD shows amorphous nature for undoped and anatase phase of TiO2 having (101) plane for nanoparticle TiO2 doped WO3 thin film. SEM shows microfibrous reticulated porous network for WO3 with 600 nm fiber diameter and nanocrystalline having size 40 nm for TiO2 nanoparticle doped WO3 thin film. TiO2 nanoparticle doped WO3 thin film shows ~95% reversibility due to may be attributed to nanocrystalline nature of the film, which helpful for charge insertion and deinsertion process. The diffusion coefficient for TiO2 nanoparticle doped WO3 film is less than undoped WO3.
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Zulkiflee, Nur Syahraain, Rosniza Hussin, and Hasrul Yahya. "Structural and Optical Characterization of TiO2/ZnO Thin Films Prepared by Sol-Gel Method." Materials Science Forum 888 (March 2017): 290–96. http://dx.doi.org/10.4028/www.scientific.net/msf.888.290.

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Thin film has been extensively study due to better structural, surface morphology, and optical properties. The combination of two materials will enhance the properties of thin film. In this study, TiO2/ZnO thin films were deposited on glass substrates via sol-gel method. TiO2 acts as pre-deposited thin film with calcination temperatures at 400 °C, 500 °C, and 600 °C. The post-deposition of TiO2/ZnO thin films were calcined at 500 °C and 600 °C. TiO2 sol-gel was synthesis from titanium (IV) butoxide and butanol as the precursor, while ZnO sol-gel was synthesis from zinc acetate dehydrate and isopropanol as the precursor. The TiO2/ZnO thin films were characterized by X-ray diffraction (XRD), atomic force microscope (AFM), and ultraviolet visible spectroscopy (UV-Vis). The effect of calcination temperature and pre-deposited TiO2 thin films show difference results of bilayer thin films. The XRD analysis shows all TiO2/ZnO thin films growth with TiO2 anatase crystalline phase at orientation (1 0 1) and ZnO zincite phase at orientation (1 0 1). The structural properties of TiO2/ZnO thin films were improved by controlling the calcination temperature. Based on AFM analysis, the RMS value for TiO2/ZnO decreases as the calcination temperature increased. The compacted and dense surface roughness were controlled by the temperature. Meanwhile, the percentage of thin film ultraviolet transmittance can be enhanced with combination of two materials, TiO2 and ZnO. Therefore, the pre-deposited layer of thin film with influenced by calcination temperature will improve the crystallinity, surface morphology, and optical properties of TiO2/ZnO thin films.
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Han, Chun, Lei Zhao, Manying Zhang, Lin Pan, and Zhifeng Liu. "Synthesis and Self-Cleaning Property of TiO2 Thin Film Doping with Fe3+, Al3+, Ce3+ Ions." Journal of Nanoscience and Nanotechnology 20, no. 7 (July 1, 2020): 4084–91. http://dx.doi.org/10.1166/jnn.2020.17691.

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Enhancing the response to visible light and inhibiting recombination of photogenerated electrons and holes is a key point for strongly improved self-cleaning performances of TiO2 self-cleaning films. In this work, TiO2 thin film doping with three different ions (Fe3+, Al3+, Ce3+) on glass substrate respectively by sol–gel method to explore the effect of ions on self-cleaning performance of TiO2 thin films. All the prepared samples are characterized by XRD, SEM, UV-Vis and water contact angle tester. Moreover, the self-cleaning mechanism of doping TiO2 thin film is discussed. The water contact angle of TiO2 thin film doping with 9% Fe (molar ratio), 5% Ce and 5% Al are reach at 0°, respectively. In comparison with the water contact angle of pure TiO2 thin film (2.5°), TiO2 thin film doping with metal ions exhibit better self-cleaning property.
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Zhou, Yi, Ke Long Huang, Ming Ming Dang, Hong Li, Cai Xia Lv, and De Hui Shi. "Preparation and Photoelectric Performance of Eu3+-Doped Porous TiO2 Thin Film Electrode." Advanced Materials Research 97-101 (March 2010): 2209–12. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.2209.

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The nanoporous TiO2 film doped Eu3+ were prepared by combining the sol-gel and hydrothermal method, which could be applied to dye-sensitized solar cells(DSSC). The films were characterized by XRD, SEM and UV-vis DRS. DSSC photoelectric properties were evaluated by recording current-voltage characteristics under simulated sunlight illumination. The results indicated that Eu3+-doped TiO2 film electrodes increased short-circuit current and the fill facter availably; when TiO2 doping concentration for Eu3+ was 2.0mol%, a short circuit current of 0.389mA, an open circuit voltage of 0.6006V and a fill factor of 0.60 were obtained, which was remarkably better than of undoped TiO2 film electrode; and the optimal thickness attained in this work was 17.2um.
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Mathi Vathani, A., S. Dhanalakshmi, N. Jeyakumaran, and N. Prithivikumaran. "Fabrication of Al–TiO2 Thin Film Electrode by Spray Pyrolysis Technique for Urea Sensing." Journal of Nanoscience and Nanotechnology 20, no. 5 (May 1, 2020): 2887–92. http://dx.doi.org/10.1166/jnn.2020.17447.

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A simple cost effective Al–TiO2 thin film electrode was fabricated for urea sensing. Urea is the key end product of nitrogen metabolism in humans. Increased level of urea leads to loss of kidney function. Thus determination of urea is important in analysis of kidney diseases. Al–TiO2 thin films were deposited with different concentration of Al by Spray pyrolysis technique. The X-ray diffraction (XRD) pattern reveals the anatase phase of the Al–TiO2 thin films with tetragonal structure. A shift is observed in the XRD peak position compared to as prepared TiO2 thin film indicates the incorporation of Al ions into Ti ions. The UV-Vis spectroscopy study shows that the absorption increases and the absorption peak shifts towards the visible region for Al–TiO2 thin films compared with that of the as prepared TiO2 thin film. The optical band gap values changes with the change in the Al concentration in TiO2 thin films. The electrochemical analysis for optimized Al–TiO2 thin film electrode was carried out by cyclic voltammetry (CV) method. CV studies of Al–TiO2 thin film electrode show the good stability and linearity which is essential to fabricate biosensor. The sensor response to urea is linear with correlation coefficient of 0.944 and the sensitivity is 3.17 μA mM−1 cm−2.
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Khamkhash, Laura, Svetlana Em, Anara Molkenova, Yoon-Hwae Hwang, and Timur Sh Atabaev. "Crack-Free and Thickness-Controllable Deposition of TiO2–rGO Thin Films for Solar Harnessing Devices." Coatings 12, no. 2 (February 8, 2022): 218. http://dx.doi.org/10.3390/coatings12020218.

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The use of thin films consisting of TiO2 and reduced graphene oxide (TiO2–rGO) in solar harnessing devices is gaining momentum thanks to improved charge-transporting characteristics. In this report, we propose a facile spin-coating methodology for the deposition of crack-free and thickness-controllable TiO2–rGO thin films. A range of characterization techniques were utilized to confirm the formation of the TiO2–rGO thin film. Improved charge-transporting properties of TiO2–rGO composite thin films were confirmed by measuring their photoelectrochemical (PEC) activity under simulated solar light illumination. In particular, it was found that the TiO2–rGO composite thin film yielded a better photocurrent response (~151.3 µA/cm2) than the bare TiO2 thin film (~71.6 µA/cm2) at 1.23 eV vs. the reversible hydrogen electrode (RHE). The obtained results suggested that rGO addition remarkably improves the charge-transporting properties in TiO2 films.
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Hsieh, Ling Ling, Chen Yu Chang, Huey Lih Shyu, Chi An Tsou, and Hsueh Hsia Lo. "The Inhibition Effect of TiO2/Ag Thin Film on Acinetobacter baumannii." Advanced Materials Research 123-125 (August 2010): 272–75. http://dx.doi.org/10.4028/www.scientific.net/amr.123-125.272.

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The nosocomial infections caused by opportunistic pathogen Acinetobacter baumannii was increasing in recent years. It was known that the attachment of A. baumannii on solid surface was a key factor for infection. This study was conducted to evaluate the inhibitory effect of titanium dioxide (TiO2)/Ag thin film on A. baumannii. In this study, TiO2 thin films were firstly prepared by using the modified impregnation method, then TiO2/Ag thin films were prepared by using the spin-coating with 5000 ppm Ag+. The TiO2/Ag thin film was analyzed by field-emission scanning electron micrographs and X-ray diffractometer. The nano-size and Anatase crystal structure were confirmed. Twenty clinical A. baumannii isolates were examined for the bactericidal effect of TiO2/Ag thin film either in the dark or under visible light activation for 20 min. The inhibition efficiencies of TiO2/Ag thin film under visible light on these 20 isolates ranged from 41% to 90%. The effects of TiO2/Ag thin film in the dark were slightly lower than visible light-activated group. Our results suggested that coating of TiO2/Ag on solid surface in hospital environment might be helpful for the prevention of nosocomial A. baumannii infection.
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Amananti, Wilda. "ANALISIS MIKROSTRUKTUR LAPISAN TIPIS TiO2:ZnO YANG DIDEPOSISIKAN DIATAS SUBTRAT KACA DENGAN METODE SPRAY COATING UNTUK DEGRADASI LIMBAH ZAT WARNA." EKSAKTA: Berkala Ilmiah Bidang MIPA 18, no. 02 (November 30, 2017): 210–15. http://dx.doi.org/10.24036/eksakta/vol18-iss02/81.

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TiO2 is known as a good material candidate for environmental pollutant degradation. A combination of ZnO and TiO2 in the hope of enhancing the ability of ZnO in degrading the dye liquids. Precursor solutions TiO2, ZnO and TiO2: ZnO are deposited using sol-gel method of Spray Coating Technique. Microstructures of TiO2 and TiO2: ZnO thin films with and without the ZnO buffer layer were observed using X-Ray Diffraction (XRD). The photocatalyst activity was tested on Direct Blue degradation. The results conclude that TiO2: ZnO and ZnO thin films can form well above the glass substrate shown by the appearance of peaks of either ZnO or TiO2. But for TiO2 thin layers do not munujukan good results. The incorporation of TiO2: ZnO causes a lattice strain on the thin TiO2: ZnO film resulting in the narrowing of the energy band gap, resulting in increased photocatalytic capability of the thin film. TiO2: ZnO thin film has better photocatalytic capability than TiO2 or ZnO thin films.
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Chien, Dang Tran, Pham Duy Long, Pham Van Hoi, and Le Ha Chi. "Nanocomposite Thin Film TiO2/CdS Electrodes Prepared by Thermal Evaporation Process for Photovoltaic Applications." Communications in Physics 21, no. 1 (June 24, 2011): 57. http://dx.doi.org/10.15625/0868-3166/21/1/95.

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The incorporation of cadmium sulfide (CdS) into TiO2 nanoparticle thin films was investigated. The nanoparticle TiO2 thin film onto an indium doped–tin oxide (ITO) substrate was deposited by Electron Beam Deposition (EBD) combined with thermal process. Then a CdS thin film was vacuum-deposited onto the pre-deposited TiO2 film by a thermal evaporation technique. The obtained TiO2/CdS was characterized by X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM). The TiO2/CdS nanocomposite film was used in a photo-electrochemical (PEC) cell as a working electrode and a platinum electrode as a counter electrode. The electrolyte solution contains 1 M KCl and 0.1M Na2S. The results show that the cell with TiO2/CdS composite film electrode has significantly improved photoelectric capability in comparison with that of the pure TiO2 thin films.
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Dissertations / Theses on the topic "Thin TiO2 film"

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Wu, Xin. "TiO2 Thin Film Interlayer for Organic Photovoltaics." Thesis, The University of Arizona, 2015. http://hdl.handle.net/10150/582369.

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TiO2 films as electron collecting interlayers are important in determining the efficiency of organic photovoltaics (OPVs). Various methods of film deposition have been explored, and they revealed the tradeoff between pinhole free coverage (large shunt resistance) and small film thickness (small series resistance). It is hypothesized that atomic layer deposition (ALD) with its self-limiting nature and sub-nanometer level control would be able to circumvent this problem and provide TiO2 films of pinhole free coverage and small thickness. TiO2 films made by chemical vapor deposition (CVD) and ALD were investigated and compared. Conductive atomic force microscopy (CAFM) was used to characterize film morphology and conductivity. X-ray photoelectron spectroscopy (XPS) was utilized to analyze film composition and chemical state. Cyclic voltammetry (CV) was able to reveal the hole blocking capability of films. Finally, organic photovoltaic devices were made with different TiO2 films to reveal the relationship between device property and film characteristic. It is found that both CVD and ALD created TiO2 films with Ti4+ species containing oxygen from hydroxyl groups. They both showed conformal coverage of the electrode via CAFM and CV measurements, and clearly ALD method achieved this with a thinner film and smaller series resistance. This work provided the evidence of effective and surprising capabilities of electron harvesting and hole blocking of ultrathin ALD TiO2 films for OPVs.
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Hedbor, Sigrid, and Linnéa Klar. "Plant Extract Sensitised Nanoporous TiO2 Thin Film Photoelectrochemical Cells." Thesis, Uppsala University, Department of Earth Sciences, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-88885.

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För att undersöka skillnad i prestationsförmåga mellan celler sensiterade med växtextraktsbaserad färg, och celler sensiterademed ruteniumkomplex-baserad färg, samt huruvida presskraften påverkar en cells prestationsförmåga, tillverkades icke-slutna fotoelektrokemiska färg-sensiterade solceller med tunnfilmsfotoelektroder av pressad, nanoporös titandioxid.

Cellerna pressades med tre olika presskrafter och sensiterades med växtextraktsfärg från rödkål, rödbeta, viol och henna, samt en ruteniumkomplex-baserad färg som fick utgöra kontrollbetingelse. För varje cell uppmättes IPCE- och iV-värde och motsvarande fyllnadsgrad (fill factor) och dessa jämfördes.

Ingen signifikant skillnad kunde fastställas mellan celler pressade med olika presstryck. Bland cellerna sensiterade med växtextraktbaserad färg presterade rödbeta bäst. Cellen med högst effektivitet hade fyllnadsgraden 70%. Emellertid uppvisade de växtfärgade cellerna genomgående sämre effektivitet än de rutenium-sensiterade och fotoströmmarna var mycket låga. IPCE-värdena var allmännt låga: den bäst presterande cellen hade ett IPCE-värde på något över 0,06 i våglängdsintervallet 440-470 nm. En förklaring till detta är de övriga ämnen som förutom pigment återfinns i de växtbaserade färgerna. Dessa hindrar pigmentmättnad och förhindrar att växtfärgen når ruteniumfärgens intensitet. En annan anledning består i svårigheten att passa ihop energinivåerna i cellens elektrolyt-halvledarsystem med energinivåerna hos pigmentet i växtfärgen.


Non-sealed photoelectrochemical dye sensitised solar cells (DSSC) with pressed nanoporous TiO2 thin film photoelectrodes were manufactured for the purposes of finding out whether plant extractbased dye sensitised cells can perform as well as ruthenium complex-based dye sensitised cells and whether the pressing force affects the cell performance.

The cells were pressed with three different pressing forces and sensitised with plant extracts from red cabbage, beetroot, violet and henna, as well as with a ruthenium complex-based dye for comparison. The IPCE and iV values and the corresponding fill factors of the cells were evaluated and compared.

No significant difference between the cells pressed with different pressing forces could be established. Among the plant extract-based dye sensitised cells the ones sensitised with beetroot extract performed best. The cell that achieved the highest efficiency had a fill factor of 70%. Compared to the ruthenium-sensitised cells the overall performance of the plant dye sensitised cells were very poor and the produced photocurrents very low. The IPCE values were generally low: one of the best-performing cells had an IPCE value of slightly over 0.06 in the 440-470 nm wavelength ranges. One reason for this is that it is difficult to obtain a plant extract dye as intense and deep in colour as ruthenium complex-based dyes, since pigment saturation is obstructed by the presence of other chemical compounds in the plant extracts. Another is that it is a delicate and difficult matter to match the energy levels in the electrolyte-semiconductor system with the energy levels of the pigments in the plant extract dye.

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Sagrini, Giacomo <1991&gt. "Atomic layer deposition of TiO2 thin film for biomedical applications." Master's Degree Thesis, Università Ca' Foscari Venezia, 2020. http://hdl.handle.net/10579/16261.

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Atomic Layer Deposition (ALD) is a bottom-up process for the manufacturing of inorganic nanostructured thin films, with thickness down to a fraction of a monolayer. Thanks to its unique mechanism of growth, ALD is a powerful technique that has achieved a lot of interest. In this work, a low pressure ALD process was employed to deposit titanium dioxide (TiO2) for biomedical neuro-chips applications based on electrolyte-oxide-semiconductor field-effect transistors (EOSFET). The aim was to optimize a custom-made ALD process for the deposition of high-k dielectric TiO2 starting from titanium tetra-isopropoxide and deionized water. Dense and pinhole-free thin films were deposited by working at controlled temperature (T<300°C) and by varying the process parameters. The structure-properties correlation of the grown thin films was studied by X-Ray Diffraction, Scanning Electron Microscopy, X-Ray Photoelectron Spectroscopy, Secondary Ion Mass Spectrometry and Ellipsometry. To evaluate the functional biomedical applications of TiO2 thin films via ALD, preliminary cellular-neuronal biocompatibility in-vitro tests were explored. Moreover, to study the influence on cell attachment/adhesion and growth, the surface chemical functionality was explored by wettability analyses by using Water Contact Angle (WCA). Next, to avoid a progressive atmospheric contamination, the hydrophilicity was restored exposing the samples by UV radiation and studying the WCA variation at different exposure times. Finally, further work will test neuronal in-vitro bioactivity by neurons deposition for a possible biomedical application, for the purpose of recording electrical activity and stimulating damaged brain areas.
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Yu, Shun. "Molecular Interaction of Thin Film Photosensitive Organic Dyes on TiO2 Surfaces." Doctoral thesis, KTH, Materialfysik, MF, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-47354.

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The photosensitive molecule adsorption on titanium dioxide (TiO2) forms the so-called “dye sensitized TiO2” system, a typical organic/oxide heterojunction, which is of great interest in catalysis and energy applications, e.g. dye-sensitized solar cell (DSSC). Traditionally, the transition metal complex dyes are the focus of the study. However, as the fast development of the organic semiconductors and invention of new pure organic dyes, it is necessary to expand the research horizon to cover these molecules and concrete the fundamental understanding of their basic properties, especially during sensitization.In this work, we focus on two different photosensitive molecules: phthalocyanines and triphenylamine-based dyes. Phthalocyanines are organic semiconductors with symmetric macro aromatic molecular structures. They possess good photoelectrical properties and good thermal and chemical stability, which make them widely used in the organic electronic industries. Triphenylamine-based dyes are new types of pure organic dyes which deliver high efficiency and reduce the cost of DSSC. They can be nominated as one of the strong candidates to substitute the ruthenium complex dyes in DSSC. The researches were carried out using classic surface science techniques on single crystal substrates and under ultrahigh vacuum condition. The photosensitive molecules were deposited by organic molecular beam deposition. The substrate reconstruction and ordering were checked by low energy electron diffraction. The molecular electronic, geometric structures and charge transfer properties were characterized by photoelectron spectroscopy, near edge X-ray absorption fine structure spectroscopy and resonant photoelectron spectroscopy (RPES). Scanning tunneling microscopy is used to directly image the molecular adsorption.For phthalocyanines, we select MgPc, ZnPc, FePc and TiOPc, which showed a general charge transfer from molecule to the substrate when adsorbed on rutile TiO2(110) surface with 1×1 and 1×2 reconstructions. This charge transfer can be prevented by modifying the TiO2 surface with pyridine derivatives (4-tert-butyl pyridine (4TBP), 2,2’-bipyridine and 4,4’-bipyridine), and furthermore the energy level alignment at the interface is modified by the surface dipole established by the pyridine molecules. Annealing also plays an important role to control the molecular structure and change the electronic structure together with the charge transfer properties, shown by TiOPc film. Special discussions were done for 4TBP for its ability to shift the substrate band bending by healing the oxygen vacancies, which makes it an important additive in the DSSC electrolyte. For the triphenylamine-based dye (TPAC), the systematic deposition enables the characterization of the coverage dependent changes of molecular electronic and geometric structures. The light polarization dependent charge transfer was revealed by RPES. Furthermore, the iodine doped TPAC on TiO2 were investigated to mimic the electrolyte/dye/TiO2 interface in the real DSSC.The whole work of this thesis aims to provide fundamental understanding of the interaction between photosensitive molecules on TiO2 surfaces at molecular level in the monolayer region, e.g. the formation of interfacial states and the coverage dependent atomic and electronic structures, etc. We explored the potential of the application of new dyes and modified of the existing system by identifying their advantage and disadvantage. The results may benefit the fields of dye syntheses, catalysis researches and designs of organic photovoltaic devices.
QC 20111114
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Lojewski, Brandon. "A Linear Multiplexed Electrospray Thin Film Deposition System." Master's thesis, University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5981.

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Liquid spray is essential to industries requiring processes such as spray coating, spray drying, spray pyrolysis, or spray cooling. This thesis reports the design, fabrication, and characterization of a thin film deposition system which utilizes a linear multiplexed electrospray (LINES) atomizer. First, a thorough review of the advantages and limitations of prior multiplexed electrospray systems leads to discussion of the design rationale for this work. Next, the line of charge model was extended to prescribe the operating conditions for the experiments and to estimate the spray profile. The spray profile was then simulated using a Lagrangian model and solved using a desktop supercomputer based on Graphics Processing Units (GPUs). The simulation was extended to estimate the droplet number density flux during deposition. Pure ethanol was electrosprayed in the cone-jet mode from a 51-nozzle aluminum LINES atomizer with less than 3% relative standard deviation in the D10 average droplet diameter as characterized using Phase Doppler Interferometry (PDI). Finally a 25-nozzle LINES was integrated into a thin film deposition system with a heated, motion controlled stage, to deposit TiO2 thin films onto silicon wafers from an ethanol based nanoparticle suspension. The resulting deposition pattern was analyzed using SEM, optical profilometry, and macro photography and compared with the numerical simulation results. The LINES tool developed here is a step forward to enabling the power of electrospray for industrial manufacturing applications in clean energy, health care, and electronics.
M.S.M.E.
Masters
Mechanical and Aerospace Engineering
Engineering and Computer Science
Mechanical Engineering; Miniature Engineering Systems
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Jakubis, Ivan. "Příprava tenkých vrstev oxidů titanu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219327.

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This work deals with issues of electrochromism and making active electrochromic film of titanium dioxide. By using various precursors consisting titanium element active film was electrodeposited on glass substrates covered with transparent conductive thin-film In2O3:Sn (ITO). Electrochromic characteristics of these substrates that were electrodeposited for different times and with different voltage have been studied. Than there has been studied the impact of various annealing temperatures on electrochromic characteristics.
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Stiller, Markus, Jose Barzola-Quiquia, Pablo Esquinazi, Daniel Spemann, Jan Meijer, Michael Lorenz, and Marius Grundmann. "Strong out-of-plane magnetic anisotropy in ion irradiated anatase TiO2 thin films." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-216180.

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The temperature and field dependence of the magnetization of epitaxial, undoped anatase TiO2 thin films on SrTiO3 substrates was investigated. Low-energy ion irradiation was used to modify the surface of the films within a few nanometers, yet with high enough energy to produce oxygen and titanium vacancies. The as-prepared thin film shows ferromagnetism which increases after irradiation with low-energy ions. An optimal and clear magnetic anisotropy was observed after the first irradiation, opposite to the expected form anisotropy. Taking into account the experimental parameters, titanium vacancies as di-Frenkel pairs appear to be responsible for the enhanced ferromagnetism and the strong anisotropy observed in our films. The magnetic impurities concentrations was measured by particle-induced X-ray emission with ppm resolution. They are ruled out as a source of the observed ferromagnetism before and after irradiation.
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Bhakta, Raghunandan Krishna. "Rational development of precursors for MOCVD of TiO2: precursor chemistry, thin film deposition, mechanistic studies." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=975799681.

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Schipporeit, Sebastian [Verfasser], and Dieter [Akademischer Betreuer] Mergel. "Decomposition, quantitative and qualitative evaluation of TiO2 thin film Raman spectra / Sebastian Schipporeit ; Betreuer: Dieter Mergel." Duisburg, 2021. http://d-nb.info/1233199889/34.

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Enkhtuvshin, Dorjpalam. "Photoelectrochemical properties of TiO2-based thin film electrodes chemically modified by homogeneous- and sectional-doping processes." 京都大学 (Kyoto University), 2004. http://hdl.handle.net/2433/147654.

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Books on the topic "Thin TiO2 film"

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Hajjaji, Anouar, Mosbah Amlouk, Mounir Gaidi, Brahim Bessais, and My Ali El Khakani. Chromium Doped TiO2 Sputtered Thin Films. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-13353-9.

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Domaradzki, Jarosław. Powłoki optyczne na bazie TiO₂. Wrocław: Oficyna Wydawnicza Politechniki Wrocławskiej, 2010.

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Kaczmarek, Danuta. Modyfikacja wybranych właściwości cienkich warstw TiO₂. Wrocław: Oficyna Wydawnicza Politechniki Wrocławskiej, 2008.

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Kaczmarek, Danuta. Modyfikacja wybranych właściwości cienkich warstw TiO₂. Wrocław: Oficyna Wydawnicza Politechniki Wrocławskiej, 2008.

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Amlouk, Mosbah, Anouar Hajjaji, Mounir Gaidi, Brahim Bessais, and My Ali El Khakani. Chromium Doped TiO2 Sputtered Thin Films: Synthesis, Physical Investigations and Applications. Springer, 2014.

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Amlouk, Mosbah, Anouar Hajjaji, Mounir Gaidi, Brahim Bessais, and My Ali El Khakani. Chromium Doped TiO2 Sputtered Thin Films: Synthesis, Physical Investigations and Applications. Springer, 2014.

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Amlouk, Mosbah, Anouar Hajjaji, and Mounir Gaidi. Chromium Doped TiO2 Sputtered Thin Films: Synthesis, Physical Investigations and Applications. Springer, 2015.

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National Aeronautics and Space Administration (NASA) Staff. Characterization of (Ba(0. 5)Sr(0. 5)) Tio3 Thin Films for Ku-Band Phase Shifters. Independently Published, 2018.

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National Aeronautics and Space Administration (NASA) Staff. Comparison of Mocld with Pld Ba(x)Sr(1-X)Tio3 Thin Films on Laalo3 for Tunable Microwave Applications. Independently Published, 2018.

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Book chapters on the topic "Thin TiO2 film"

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Sakhuja, Neha, and Navakanta Bhat. "TiO2 Thin Film Optimization for Ammonia Gas Sensing." In Springer Proceedings in Physics, 819–28. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-97604-4_123.

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Ekuma, Chinedu, Israel Owate, Eziaku Osarolube, Evelyn Esabunor, and Innocent Otu. "Chemical Growth and Optoelectronic Characteristics of TiO2 Thin Film." In Ceramic Transactions Series, 77–82. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118144602.ch8.

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Krella, Alicja K., Andrzej Krupa, Arkadiusz T. Sobczyk, and Anatol Jaworek. "Al2O3 + TiO2 Thin Film Deposited by Electrostatic Spray Deposition." In Springer Proceedings in Energy, 277–83. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-45677-5_34.

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Raman, Rahul, Amitabha Nath, and Mitra Barun Sarkar. "Comparison of Photodetection Capability of Spin Coated TiO2 Thin Film and In2O3 Thin Film Devices." In Advances in Intelligent Systems and Computing, 555–63. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4032-5_51.

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Matsuoka, Masaya, Masayuki Minakata, Afshin Ebrahimi, Masakazu Anpo, Hung-chang Chen, and Wen-ting Lin. "Construction of Solid-State Thin Film Solar Cell by Applying Visible Light-Responsive TiO2 Thin Film Materials." In Nanostructure Science and Technology, 561–75. New York, NY: Springer New York, 2010. http://dx.doi.org/10.1007/978-0-387-48444-0_24.

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Rappich, J., and J. K. Dohrmann. "Simultaneous Photoacoustic and Photoelectrochemical Study of a TiO2 Thin-Film Semiconductor Electrode." In Photoacoustic and Photothermal Phenomena, 204–6. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-540-48181-2_51.

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Chou, J. C., C. H. Liu, and C. C. Chen. "Electrochromic Property of Sol-Gel Derived TiO2 Thin Film for pH Sensor." In IFMBE Proceedings, 69–72. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21729-6_21.

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Moreau, Antonin, Christophe Defranoux, J. P. Piel, A. Bourgeois, and M. O. Martin. "Fast and Non Destructive Technique to Characterize Thin Film Porosity: Example on Cubic Mesoporous TiO2 Thins Films." In Materials Science Forum, 2183–86. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-462-6.2183.

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Feleke, Z., R. van de Krol, and P. W. Appel. "Photoelectrocatalytic Removal of Color from Water Using TiO2 and TiO2/Cu2O Thin Film Electrodes Under Low Light Intensity." In Appropriate Technologies for Environmental Protection in the Developing World, 181–96. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-1-4020-9139-1_18.

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Hequan, Wang, Ba Dechun, Shen Hui, and Wen Lishi. "Fabrication and Characterization of Tio2 Antireflection Thin Film Deposited on the Solar Cell." In Proceedings of ISES World Congress 2007 (Vol. I – Vol. V), 1000–1005. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-75997-3_193.

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Conference papers on the topic "Thin TiO2 film"

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Shen, Jun, Zhinong Weng, Yulong Zhang, Zhongsheng Deng, Tianhe Yang, Jue Wang, and Lingyan Chen. "Preparation of TiO2 nanoparticle thin film with sol-gel process." In Third International Conference on Thin Film Physics and Applications, edited by Shixun Zhou, Yongling Wang, Yi-Xin Chen, and Shuzheng Mao. SPIE, 1998. http://dx.doi.org/10.1117/12.300677.

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Wang, Zhongchun, Xiaofeng Chen, and Xingfang Hu. "TiO2-doped MoO3 electrochromic thin films via sol-gel method." In Third International Conference on Thin Film Physics and Applications, edited by Shixun Zhou, Yongling Wang, Yi-Xin Chen, and Shuzheng Mao. SPIE, 1998. http://dx.doi.org/10.1117/12.300679.

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Sarah, M. S. P., M. Z. Musa, M. N. Asiah, and M. Rusop. "Electrical conductivity characteristics of TiO2 thin film." In 2010 International Conference on Electronic Devices, Systems and Applications (ICEDSA). IEEE, 2010. http://dx.doi.org/10.1109/icedsa.2010.5503040.

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Suciu, R. C., M. C. Roşu, I. Marian, T. D. Silipaş, C. Varodi, A. Popa, M. Miheţ, E. Indrea, and Mihaela D. Lazar. "TiO2 thin film deposition by chemical methods." In PROCESSES IN ISOTOPES AND MOLECULES (PIM 2011). AIP, 2012. http://dx.doi.org/10.1063/1.3681991.

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Sankur, H., and W. Gunning. "Stress and structure in mixed thin TiO2-SiO2 Films." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.mnn4.

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In this paper we discuss the stress and sorbed moisture in mixed SiO2-TiO2 thin films and the dependence of these on deposition temperature and pressure, chemical composition of the film, and annealing conditions. SiO2 and TiO2 commonly used visible range optical thin film materials in gradient-index coatings. Films deposited by evaporative techniques have a porous microstructure. This microstructure and the sorption of moisture in the pores give rise to mechanical stress, which can cause catastrophic failure of the coating. Therefore, techniques to eliminate moisture sorption and to minimize stress are highly desired. It was observed that sorption of water causes compressive stress in SiO2 rich films, indicating different bonding arrangements of sorbed water at the grain surfaces in these two materials. Deposition conditions that promote a denser film microstructure, such as high substrate temperature, low background pressure, or energetic ion bombardment tend to reduce sorbed water and the tensile stress of TiO2 rich films. For a given set of deposition conditions the stress becomes more tensile as the TiO2 content increases. However, this composition dependence is sensitive to the method of mixing, being linear with composition in alternating layered mixtures and nonlinear in codeposited mixtures. Annealing reduces water in the films and increases tensile stress as the film undergoes densification. High temperature annealing also causes segregation and crystallization of TiO2. The grain size dependence on composition and annealing time have been determined for the entire range of compositions.
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Kaliang, J., and S. Chaisitsak. "Spray deposited CuInS2/TiO2 thin film solar cells." In 2013 8th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS). IEEE, 2013. http://dx.doi.org/10.1109/nems.2013.6559914.

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Sildos, Ilmo, A. Suisalu, V. Kiisk, M. Schuisky, H. Mandar, T. Uustare, and Jaan Aarik. "Effect of structure development on self-trapped exciton emission of TiO2 thin films." In 4th International Conference on Thin Film Physics and Applications, edited by Junhao Chu, Pulin Liu, and Yong Chang. SPIE, 2000. http://dx.doi.org/10.1117/12.408489.

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Chen, Chun-Hsien, Jay Shieh, Chao-Sung Lin, and Jing-Jong Shyue. "Photocatalytic Behaviors of TiO2-SrTiO3 Composite Thin Film and Nanostructure." In ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2011. http://dx.doi.org/10.1115/smasis2011-4956.

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To improve the efficiency of water splitting by photocatalysis, a semiconductor heterojunction made of titanium dioxide (TiO2) and strontium titanate (SrTiO3) is constructed to promote the separation of photo-induced electron and hole (e− /h+) pairs. The photocatalytic behaviors of the TiO2-SrTiO3 composite film and nanostructure fabricated by the sol-gel and hydrothermal methods are studied. UV-visible and ultraviolet photoelectron spectroscopies (UV-Vis & UPS) are adopted to identify the band structure of the TiO2-SrTiO3 heterojunction. For the composite film system, an approximately 0.5 eV band shift at the heterojunction improves the separation of photoinduced e−/h+ pairs. The photocurrent density of the composite film is about 2–3 times larger than that of the TiO2 or SrTiO3 film alone. For the composite nanostructure system, it is composed of an array of TiO2 nanotubes coated with SrTiO3 nanoparticles. An approximately 0.2 eV band shift at the heterojunction is determined for the composite nanostructure. It is found that the size of the SrTiO3 nanoparticles, which can be controlled by the hydrothermal temperature and time, is a key factor in influencing the photocurrent density of the TiO2-SrTiO3 composite nanostructure.
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Wisitsoraat, A., E. Comini, G. Sberveglieri, W. Wlodarski, and A. Tuantranont. "Gas-Sensing Characterization of TiO2-ZnO Based Thin Film." In 2006 5th IEEE Conference on Sensors. IEEE, 2006. http://dx.doi.org/10.1109/icsens.2007.355784.

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Shubham, Kumar, R. U. Khan, and P. Chakrabarti. "TiO2 thin film-based low concentration MIS hydrogen sensor." In 2012 Nirma University International Conference on Engineering (NUiCONE). IEEE, 2012. http://dx.doi.org/10.1109/nuicone.2012.6493226.

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Reports on the topic "Thin TiO2 film"

1

Potrepka, Daniel M., Glen R. Fox, and Ronald G. Polcawich. Optimization of PZT Thin Film Crystalline Orientation Through Optimization of TiO2/Pt Templates. Fort Belvoir, VA: Defense Technical Information Center, January 2011. http://dx.doi.org/10.21236/ada536343.

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Ayala, Alicia. Aspects of the SrO-CuO-TiO2 Ternary System Related to the Deposition of SrTiO3 and Copper-Doped SrTiO3 Thin-Film Buffer Layers. Office of Scientific and Technical Information (OSTI), December 2004. http://dx.doi.org/10.2172/836697.

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