Дисертації з теми "Polymer Nano-films"
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Wang, Xiaoteng. "Directed Nano-Patterning of Polymer Nanocomposite Thin Films." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1462141968.
Повний текст джерелаAkram, Aisha. "Nano indentation of particulate and polymer films." Thesis, Imperial College London, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249316.
Повний текст джерелаHung, Ming-Tsung. "Heat transport in polymer thin films for micro/nano-manufacturing." Diss., Restricted to subscribing institutions, 2007. http://proquest.umi.com/pqdweb?did=1459914931&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.
Повний текст джерелаSamadi, Azadeh. "Synthesis and analysis of nano-thin polymer films for separation applications." Connect to this title online, 2009. http://etd.lib.clemson.edu/documents/1247508734/.
Повний текст джерелаJin, Weize. "Relative Alignment of CZA (Cold Zone Anneal) Polymer In Nano Imprinted Films." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1430229845.
Повний текст джерелаQian, Jiajie. "Control Of C60-POSS Nano Particle Locaiton In DirectedSelf-Assembly of Block Copolymer Thin Films." University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1398074026.
Повний текст джерелаZhao, Wei. "Flexible Transparent Electrically Conductive Polymer Films for Future Electronics." University of Akron / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=akron1297888558.
Повний текст джерелаBodnár, Eszter. "Electrospraying of polymer solutions for the generation of micro-particles, nano-structures, and granular films." Doctoral thesis, Universitat Rovira i Virgili, 2016. http://hdl.handle.net/10803/379820.
Повний текст джерелаSe ha realizado un estudio sobre los mecanismos de formación de micropartículas poliméricas y sus películas granulares, a partir del secado de microgotas de electropras. El estudio se centra en diferentes soluciones de tres polímeros insolubles en agua: polimetil(metacrilato), poliestireno, y etil celulosa. El secado de estos electrosprays da lugar a diversas morfologías de partícula, que han sido determinadas mediante microscopía de barrido electrónico, y han sido caracterizadas en función del solvente, concentración del polímero, su peso molecular, y la humedad relativa ambiente. Las morfologías obtenidas incluyen una variedad de estructuras de partícula globulares y filamentosas, que, a humedad relativa elevada, pueden desarrollar porosidad. Estas características morfológicas han sido explicadas mediante modelos cualitativos que involucran fenómenos fluido dinámicos y sobre separación de fases, presentes en sistemas relacionados con los estudiados. Uno de los fenómenos fluido dinámicos involucrados clave son las inestabilidades coulómbicas de gotas eléctricamente cargadas. Además, la interacción de no solvente del agua en la precipitación del polímero puede dar lugar a texturas porosas sobre la superficie de las partículas. Los diferentes tipos de texturas han sido explicadas en referencia a los fenómenos de breath figure formation (BFF), y a inversión de fases inducida por vapor (vapor induced phase separation, o VIPS). También hemos estudiado el crecimiento de las películas granulares formadas a partir de las partículas poliméricas. Demostramos que la carga eléctrica transportada por las partículas hacia la película influye fuertemente en la dinámica de crecimiento de ésta. Un mejor conocimiento de los mecanismos estudiados en esta tesis debería permitir diseñar nuevos procesos de manufactura de partículas y recubrimientos basados en electrospray.
A study has been made of the mechanisms underlying the formation of polymeric microparticles and of their granular films, by drying of electrospray microdroplets. The study is focused on different solutions of three water-insoluble polymers: polymethyl(methacrylate), polystyrene, and ethyl cellulose. The drying of such electrosprays result in diverse particle morphologies, which have been determined by scanning electron microscopy, and have been characterized as a function of the solvent, polymer concentration, polymer molecular weight, and ambient relative humidity. The morphologies obtained include a variety of globular and filamented particle structures, which, at elevated relative humidity, can develop porosity. These morphological features have been explained using qualitative models involving fluid dynamic and phase separation phenomena which are known to occur in closely related systems. One of the key fluid dynamic phenomena involved is the coulombic instability of electrically charged droplets. In addition, the non-solvent interaction of water on the precipitation of the polymer can lead to porous textures on the particles surfaces. The different kinds of textures have been explained by reference to breath-figure formation (BFF) and vapor induced phase separation (VIPS) phenomena. We have also studied the growth of the granular films of such polymer particles. We show that the electrical charge transported by the particles to the film have a strong influence on the film growth dynamics. The better understanding of the mechanisms studied in this thesis, should help design new manufacturing processes of particles and coatings based on electrospray.
Mabuchi, Michiaki. "Nano-Structure and Thermal Relaxation of Ultrathin Polymer Films Prepared by the Langmuir-Blodgett Technique." Kyoto University, 1998. http://hdl.handle.net/2433/182337.
Повний текст джерелаMasclaux, Céline. "Etude de la structuration spontanée de films polymères en nano-impression thermique." Thesis, Grenoble, 2012. http://www.theses.fr/2012GRENT034/document.
Повний текст джерелаNanoImprint lithography by spontaneous polymer destabilization is an alternative toThermal NanoImprint, which limits physical contact between polymer and mold surfaces.The purpose of this thesis is to investigate this spontaneous destabilization and to work out ifit can lead to the formation of nanostructures by duplicating positively a structured mold.This process is in particular affected by temperature or electric field present at mold - air -polymer interfaces and by the distance d between the structures of the mold and the polymersurface.The studies of this thesis were focused on the influence of these process parameters. Itwas shown that the structuration depends more of charges’ effect than temperature, since thepolymer can creep. We highlighted the following scenario of structuration: a positiveduplication appears first and is followed, in some cases, by the filling of the mold cavitiesleading to a negative duplication. A theoretical model was used to calculate the mostfavorable destabilization wavelength, and a comparison with experimental results helped toexplain why and under which circumstances the final structuration is positive or negative. Aninvestigation was performed on the spontaneous destabilization of flexible substrate but thebigger thickness of flexible films led to a destabilisation with a wide wavelength and so tothe filling of molds’ cavities
Durret, Jérôme. "Développement de procédés de nanostructuration sur films de polymères flexibles." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAT054/document.
Повний текст джерелаNanotechnologies represent a considerable potential of development and application in the field of material science opening the way to innumerable developments for energy, transport, health, industry, and so on. Thus, biomimicry found a new driving force for study and development. The lotus leaf is able to repulse water with a remarkable efficiency transforming any drop of water into a ball following the laws of solid physics. This extraordinary property is due to the association of a hydrophobic chemical composition with a hierarchical texturing of its surface.This thesis focuses on the understanding of the physical principles governing the interaction of water drops on the surfaces of structured polymer films of FEP, PMMA and PET. Two technologies have been implemented for the production of hierarchical superhydrophobic surfaces: thermal nanoimprint lithography (NIL) and plasma etching. We have measured the contact angles and hysteresis of these structured surfaces in order to identify their Wenzel or Cassie-Baxter wetting state. We have attached particular importance to the development of manufacturing and characterization solutions on large surfaces.The anti-icing properties have been characterized and the role of condensation in the propagation of frost has been correlated with the surface texturing. In addition, we have highlighted the role of the electrostatic surface potential on frost delays. Finally, in view of the applicative potential of these surfaces, we added a dynamic dimension in the study considering the velocity of drops impact. A model of prediction from the literature was successfully compared to our experimental results
Zhang, Fajian. "Electro-optic Properties of Semiconductor Nano-crystals And Electro-optic Polymers And Their Applications." Diss., Virginia Tech, 2002. http://hdl.handle.net/10919/29289.
Повний текст джерелаPh. D.
Beck, Catherine Keel. "Characterization of Spin Coated Polymers in Nano-environments as a Function of Film Thickness." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/34548.
Повний текст джерелаMaster of Science
Woods, Courtney G. "Role of nano-particles on crystalline orientation in polypropylene/clay nanocomposite films." Thesis, Available online, Georgia Institute of Technology, 2004:, 2003. http://etd.gatech.edu/theses/available/etd-04072004-180242/unrestricted/woods%5Fcourtney%5Fg%5F200312%5Fms.pdf.
Повний текст джерелаLin, Yijian. "Structure-Property Relationship of Polyolefins Used as Packages and Adhesives." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1290044976.
Повний текст джерелаSu, Xingfang. "Degradable polymeric nano-films and particles as delivery platforms for vaccines and immunotherapeutics." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/79555.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (p. 111-131).
Degradable polymeric materials provide opportunities for the development of improved vaccines and immunotherapies by acting as platforms that facilitate the delivery of molecules to appropriate tissue and cellular locations to achieve therapeutic outcomes. To this end, we have designed and characterized nano-films and particles employing a hydrolytically degradable polymer for the delivery of vaccine antigens and immunotherapeutics. We first describe protein- and oligonucleotide-loaded layer-by-layer (LbL)-assembled multilayer thin films constructed based on electrostatic interactions between a cationic poly(p-amino ester) (PBAE, denoted Poly-1) with a model protein antigen, ovalbumin (OVA), and/or immunostimulatory CpG oligonucleotides for transcutaneous delivery. Linear growth of nanoscale Poly-1/OVA bilayers was observed. Dried OVA protein-loaded films rapidly deconstructed when rehydrated in saline solutions, releasing OVA as non-aggregated/non-degraded protein, suggesting that the structure of biomolecules integrated into these multilayer films are preserved during release. Using confocal fluorescence microscopy and an in vivo murine ear skin model, we demonstrated delivery of OVA from LbL films into barrier-disrupted skin, uptake of the protein by skin-resident antigen-presenting cells (Langerhans cells), and transport of the antigen to the skin-draining lymph nodes. Dual incorporation of OVA and CpG oligonucleotides into the nanolayers of LbL films enabled dual release of the antigen and adjuvant with distinct kinetics for each component; OVA was rapidly released while CpG was released in a relatively sustained manner. Applied as skin patches, these films delivered OVA and CpG to Langerhans Cells in the skin. To our knowledge, this is the first demonstration of LbL films applied for the delivery of biomolecules into skin. This approach provides a new route for storage of vaccines and other immunotherapeutics in a solid-state thin film for subsequent delivery into the immunologically-rich milieu of the skin. In parallel, we also developed biodegradable core-shell nanoparticles with a PBAE core enveloped by a phospholipid bilayer shell for cytosolic delivery, with a view towards delivery of messenger RNA (mRNA)-based vaccines. The pH-responsive PBAE component was chosen to promote endosome disruption, while the lipid surface layer was selected to minimize toxicity of the polycation core. mRNA was efficiently adsorbed via electrostatic interactions onto the surface of these net positively charged nanoparticles. In vitro, mRNA-loaded particle uptake by dendritic cells led to mRNA delivery into the cytosol with low cytotoxicity, followed by translation of the encoded protein in these difficult-to-transfect cells at a frequency of -30%. Particles also promoted cytosolic uptake of co-delivered anti-tumor toxins in tumor cells resulting in synergistic killing, demonstrating potential for cancer therapy. In vivo, particles loaded with mRNA administered intranasally or intratracheally in mice led to the enhanced expression of the reporter protein luciferase compared to naked mRNA. This system may thus be promising for noninvasive delivery of mRNA-based vaccines.
by Xingfang Su.
Ph.D.
Mahadevegowda, Amoghavarsha. "Processing, microstructure and properties of polymer-based nano-composite dielectrics for capacitor applications." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:fb974b13-2ec5-4104-9f80-45d1cb97eb48.
Повний текст джерелаReichman, Aaron Michael. "Development of nano-characterization system for polymer film measurement and single BGA solder joint forming experiment." Diss., Online access via UMI:, 2007.
Знайти повний текст джерелаMoberg, Thomas. "Creating nanopatterned polymer films for use in light-emitting electrochemical cells." Thesis, Umeå universitet, Institutionen för fysik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-149396.
Повний текст джерелаMasclaux, Celine. "Etude de la structuration spontanée de films polymères en nano-impression thermique." Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00770169.
Повний текст джерелаMorelli, Carolina Lipparelli. "Développement et étude des propriétés des films et des pièces injectées de nano-biocomposites de nanowhiskers de cellulose et de polymères biodégradables." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENI018/document.
Повний текст джерелаThis study aimed at evaluating the potential of application of cellulose nanocrystals as reinforcing elements of biodegradable polymeric matrices, in the films and injection molded pieces applications. Two polymeric matrices with different properties were used, namely: poly(butylene adipate-co-terephthalate), PBAT, and poly(lactic acid), PLA. For the extraction of cellulose nanocrystals (NCC), two sources were selected: microcrystalline cellulose (CMC) and balsa wood . Due to the high polarity of cellulose nanocrystals, different approaches of surface chemical modifications of these particles were tested, in order to ensure their good dispersion when added to polymeric matrices of lower polarity. They were: a) chemical modification with two types of isocyanates, an aliphatic one (octadecyl isocyanate) and an aromatic one (phenylbutyl isocyanate); b) grafting of poly (butylene glutarate) using the in situ polymerization technique; c) silanization treatment; and d) grafting of poly(acrylic acid) through click chemistry technique. Modified and unmodified NCCs were processed with PBAT and PLA by casting or melt extrusion processing techniques. In general, the chemical modification of NCC surface increased their thermal resistance, decreased their polarity and improved their dispersion into PLA and PBAT matrices. Some of these treatments, as well as the processing conditions enabled an increase in the overall mechanical properties of the polymers. Thus, the characterization of the nanocomposites showed that NCC addition increased the elastic modulus of the matrix and retained its higher stiffness even under relatively high temperatures. Higher NCC contents led to larger increases in the stiffness of the ensuing composites. The water vapor permeability of PBAT was also reduced with the introduction of NCC. This work points out several potential good perspectives for the use of celulose nanocrystals as reinforcing elements of polymeric matrices. It showed also that it is possible to obtain significant improvements in the polymer properties using the same processing techniques as those used at industrial scale, such as melt extrusion and injection molding
O presente estudo de doutorado teve como objetivo avaliar o potencial deaplicação de nanocristais de celulose como reforço em matrizes poliméricasbiodegradáveis, em aplicações de filmes ou em peças moldadas por injeção.Duas matrizes poliméricas de diferentes propriedades foram utilizadas paraestudo nessas aplicações, sendo elas: poli(butileno adipato-co-tereftalato),PBAT, e poli(ácido láctico), PLA. Foram também selecionadas duas fontes paraextração dos nanocristais de celulose (NCC): a celulose microcristalina (CMC)e a madeira balsa.Devido ao caráter altamente polar dos nanocristais de celulose diferentesrotas de modificações químicas superficiais dessas partículas foram testadas,visando garantir a boa dispersão dos mesmos quando adicionados às matrizespoliméricas de menor polaridade. Foram elas: a) modificação química com doistipos de isocianatos, sendo um de cadeia alifática (octadecil isocianato) e outrode cadeia aromática (fenilbutil isocianato); b) enxertia do poli(butileno glutarato)através da técnica de polimerização in situ; c) tratamento de silanização com -metacriloxi-propil-trimetoxi-silano; d) enxertia de poli(ácido acrílico) através datécnica de click chemistry.NCC modificados e não modificados foram processados com PBAT ouPLA através de mistura com o polímero em solução (casting) ou no estadofundido (extrusão ou homogeneizador de alta rotação do tipo Drais).De modo geral, modificações químicas superficiais dos NCC aumentarama estabilidade térmica dos mesmos, diminuíram sua polaridade e melhoraram adispersão dos NCC nas matrizes de PBAT ou PLA. Isso fez com queincrementos ainda maiores nas propriedades desses polímeros pudessem serxxivalcançados, dependendo do tipo de modificação e do processo de misturautilizados.A caracterização dos nanocompósitos obtidos mostrou que a adição deNCC elevou o módulo elástico das matrizes e conservou sua maior rigidezmesmo em temperaturas relativamente elevadas, sendo que maiores teores deNCC levaram a maiores aumentos na rigidez. A permeabilidade a vapor deágua do PBAT também foi reduzida com a introdução dos NCC e não foialterada no caso do PLA.Os resultados desse trabalho apontaram boas perspectivas no uso dosnanocristais de celulose como reforços de matrizes poliméricas. Tambémmostraram que é possível obter melhorias nas propriedades de polímerosmesmo através da utilização de processos de maior reprodutibilidade emescala industrial, como extrusão e injeção
Ayche, Kenza. "Propriétés mécaniques et structurales d'encapsulants polymères utilisés en microélectronique : effet de la température et de l'humidité." Thesis, Le Mans, 2017. http://www.theses.fr/2017LEMA1005/document.
Повний текст джерелаThe increasing number of mobile devices and the race to energy sobriety make the decrease of the size of microelectronic systems (MEMS) a major challenge. Today, Lithium micro batteries are currently the best solution for high-power-and-energy applications. Incorporate them into credit cards containing a screen or associate them to electronic sensors for the supervision is the challenge which raises international companies such as ST Microelectronics. However, these micro batteries contain some lithium metal which can be dangerous if the metallic lithium is in contact with water or humid air. In addition, the substance can spontaneously ignite in the contact of the humidity. So, in order to avoid the problems of safety, we absolutely have to protect the lithium contained in our micro batteries using an encapsulation layer. Polymeric encapsulation has the advantage, compared with other materials (ceramic, metal), to present a moderate cost of shaping and a low weight. However, such systems of encapsulation are today insufficient to guarantee a satisfactory life cycle of components. Indeed, in the presence of humidity or of a too important temperature variation, the mechanical assemblies can be weakened and engender an irreparable break. The objective of the thesis is therefore to realize and study the mechanical and structural behavior of assembly of thin layers of polymers and metals in temperature and humidity.Two types of polymers were selected for this project:1. Polyvinylidene chloride (PVDC), a commercial polymer widely used for its good barrier properties to water.2. A thermally and UV-crosslinkable acrylate oligomer synthesized in the IMMM
Saxena, Shubham. "Nanolithography on thin films using heated atomic force microscope cantilevers." Thesis, Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-08302006-223629/.
Повний текст джерелаGeng, Kun. "Dynamic studies of nano-confined polymer thin films." 2017. https://hdl.handle.net/2144/20711.
Повний текст джерелаWu, Ping-Ying, and 吳品瑩. "A study of electropolymerization PEDOT nano conductive polymer films." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/wyj7jf.
Повний текст джерела國立臺北科技大學
有機高分子研究所
101
Poly-3,4-ethylenedioxythiophene(PEDOT) finds many applicaton in OLED, LCD, DSSC, etc. It is a very important conjugate polymers. In this thesis, EDOT is polymerized by electrochemical method. Many additives are added to analyze to effects of dopants on the conductivity. It is found that HCl has dramatic influence on the PEDOT conductivity. On the other hand, copolymer is used to increase the thermal durability. They are investigated by FTIR, NMR, etc. The stracture properties relationship is elucidated in this thesis.
Wu, Shing-Trong, and 吳欣璁. "Study and application of nano-sized polymer dispersed liquid crystal films." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/78228837712406677760.
Повний текст джерела國立成功大學
物理學系碩博士班
93
Abstract The researches and applications of two nano-sized polymer dispersed liquid crystal (PDLC) devices including 2D diffraction gratings and Bragg gratings were investigated in the study. The 2D PDLC gratings are fabricated by light controlled phase separation using a photomask in UV curing. The sizes of LC droplets are ~200nm and formed periodically distributed in the film. The diffracted beams from the 2D PDLC grating were switched by rotating the analyzer and/or applying a voltage. The 2D PDLC gratings can be systematically constructed to support such a beam switching application. The Bragg gratings are fabricated from LC/pre-polymer mixtures using holographic recording. The 1D grating consists of periodic nano-sized (<200nm) LC droplets and polymer lamellae in the film. Doped with a laser dye whose emission spectrum overlaps the reflection spectrum of the grating, the HPDLC reflection grating can be lased at the band edges of the reflection band gap.
Suran, Swathi. "Bright-field Nanoscopy." Thesis, 2017. http://etd.iisc.ac.in/handle/2005/4310.
Повний текст джерелаLIN, WEN-ZHONG, and 林文中. "The Influence of Micro and Nano Fillers on the Thermal Properties of Polymer Composite Films." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/tf9kdj.
Повний текст джерела國立虎尾科技大學
光電工程系光電與材料科技碩士班
106
The size of electronic products is becoming smaller and lighter and easier to carry today, but the computing power of the core processor is growing day by day. The heat generated from the CPU is likely to cause high temperature in the device. The performance, stability, lifespan, and user comfortability of electronic products could be reduced and even cause shot down of the system, since the thermal released from the CPU is accumulated quickly and difficult to dissipate from the electronic device. Therefore, how to remove the derived heat away from the heat source to avoid accumulation becomes quite important. In this study, we combined the electronic and phononic heat transfer mechanisms to increase the thermal conductivity of the composite coating films by filling a conductive polymer PEDOT between the BN, AlN, SiC micro-nano ceramic fillers gap. The heat is radiated from the surface of the composite films due to the high infrared emissivity fillers were connected by the conductive polymer. The highest thermal conductivity and the infrared emissivity of the composite coating can achieve 148.66 (W/M∙K) and 0.977, respectively. The results of this study also could be applied to the devices that are lightweight, fan-free or energy-efficient required devices in the future.
Sharma, Bhupendra Kumar. "Synthesis and characterization of ZnO: thin films, nanostructures, polymer/nano ZnO composites and ZnO based heterojunction." Thesis, 2010. http://localhost:8080/iit/handle/2074/4377.
Повний текст джерелаPahal, Suman. "Molecular Transport in Polyelectrolyte Multilayers." Thesis, 2016. http://etd.iisc.ac.in/handle/2005/3758.
Повний текст джерелаPahal, Suman. "Molecular Transport in Polyelectrolyte Multilayers." Thesis, 2016. http://etd.iisc.ernet.in/2005/3758.
Повний текст джерелаLiang-Ren, Huang, and 黃良仁. "Electrochemical Leveling Effect on Multi-Aromatic Monomer Films to Prepare Robust Conducting Polymer Nano/MicroFilms by Vapor Deposition Combined with Electropolymerization." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/97427083123488325647.
Повний текст джерела南台科技大學
化學工程與材枓工程系
95
Multi-aromatic conducting polymer films, poly(N-phenyl-1-naphthylamine) (PPNA), were prepared by using a combination of vapor deposition and electrochemical polymerization. The PNA monomer film was vapor deposited on an indium-tin oxide (ITO) glass, and was then electropolymerized using cyclic voltammetry in 1N HClO4 aqueous solution. An electrochemical rubbing effect happened on the monomer film using the above combined process, producing a robust electrode material of PPNA film in the electrochromic device: ITO / PPNA film // PU-LiClO4 // PEDOT:PSS / ITO, where poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) is PEDOT:PSS, and polyurethane is PU. Short response time (ca. 10 s) was attained from coloring to bleaching processes. After 200 switching, the stable coulombic efficiency and optical contrast possess the values of 108 and 28%, respectively. On the othe hand ,we report the electrochromic charateristics of a triphenylamine-based hole-transporting material, N, N’-diphenyl-N, N’-bis(3-methylphenyl)-1, 1’-biphenyl-4, 4’-diamine (TPD) employing the cyclic voltammetry and spectroelectrochemical methods. To assemble the dual-type electrochromic devices using different thickness (250, 400, and 1000 nm) of TPD films: ITO/TPD//PU-LiClO4//PEDOT/ITO, the optical contrast of the devices increases with increasing the TPD film thickness, whereas the 1000 nm TPD film showed relatively excellent stability; the color of the film changed from orange-brown, transparent, and dark blue at -2.0, 0.0, and +2.0 V (vs. PEDOT), respectively, where PEDOT is poly(3,4-ethylenedioxythiophene) -poly(4-styrenesulfonate).
Satapathy, Srinibas. "Investigations Into The Bulk Single Crystals, Nano Crystal Composites And Thin Films Of Ferroelectric Materials For Pyroelectric Sensor Applications." Thesis, 2009. https://etd.iisc.ac.in/handle/2005/1044.
Повний текст джерелаSatapathy, Srinibas. "Investigations Into The Bulk Single Crystals, Nano Crystal Composites And Thin Films Of Ferroelectric Materials For Pyroelectric Sensor Applications." Thesis, 2009. http://hdl.handle.net/2005/1044.
Повний текст джерелаMullapudi, Praveena. "Study of Optical Properties of Semiconductor Quantum Dot Based Hybrid Nano Assemblies." Thesis, 2016. https://etd.iisc.ac.in/handle/2005/2825.
Повний текст джерелаMullapudi, Praveena. "Study of Optical Properties of Semiconductor Quantum Dot Based Hybrid Nano Assemblies." Thesis, 2016. http://etd.iisc.ernet.in/handle/2005/2825.
Повний текст джерелаQi, Dongping. "On near-free-surface dynamics of thin polymer films." Thesis, 2009. http://hdl.handle.net/10012/4326.
Повний текст джерелаFagan, Matthew D. "A Novel Process for Continuous Thermal Embossing of Large-Area Nanopatterns onto Polymer Films." 2008. https://scholarworks.umass.edu/theses/200.
Повний текст джерелаShen, Xiaojun, Sung Yi, Lallit Anand, and Kaiyang Zeng. "Studies on Nano-Indentation of Polymeric Thin Films Using Finite Element Methods." 2002. http://hdl.handle.net/1721.1/3990.
Повний текст джерелаSingapore-MIT Alliance (SMA)
Huang, Chun-Kuo, and 黃俊國. "Bulge test and mechanical properties measurement of nano-structure polymeric thin films." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/96837616676691086954.
Повний текст джерела國立清華大學
材料科學工程學系
93
In last few decades, the applications of thin film have become more and more widely. In order to guarantee the long-term operation according to their specification, mechanical properties of thin film are highly desirable. Unfortunately, as the scale level of film structure decreasing, it becomes increasingly difficult to measure its mechanical properties. Bulge test is a useful method for characterize mechanical properties in thin films. In bulge test, a pressure is applied to the backside of the thin film uniformly, making the free-standing thin film to deflect. By measuring the pressure applied and the deflection height of the thin film, a Pressure vs. deflection height curve can be obtained and mechanical properties of the film are determined from the curve fitting process. In bulge test, the accuracy of the measurement is significantly influenced by the sample geometry. The process of free-standing thin film fabrication will be described in this thesis. A big advantage of this test over other micromechanical test lies in the relatively simple stress-strain state in the sample since the stress state in the film is biaxial. We apply bulge test to measure mechanical properties of polymeric thin film with thickness from several tenth to several hundredth nanometer. In this thesis, the polymeric thin film we tested is mr-I 8030 (Micro Resist Technology) which is used in nanoimprint lithography. The results are compared with data obtain by nanoindentation. The Young’s moduli measured by nanoindentation are about 20% to 50% greater than those measured by bulge test. This result can be viewed as the effect of substrate and the densification of thin film material under indent point. We also introduce a method to estimate Poisson ratio of thin film material. Poisson ratio, ν, can be calculated from the relationship between biaxial modulus and plane strain modulus. This idea can be carried out by conducting bulge test on square and long rectangular free-standing thin films.
Liu, Yajing. "Rapid nano-patterning of polymeric thin films with a GA⁺ focused ion beam /." 2005. http://wwwlib.umi.com/dissertations/fullcit/3161255.
Повний текст джерелаFernandes, Joana Gonçalves. "Writing/erasing 3D micro and nano wrinkles in flexible elastomers for volatile organic compounds sensor." Master's thesis, 2014. http://hdl.handle.net/10362/13930.
Повний текст джерелаBrunner, Pierre-Louis Marc. "Dispositifs optoélectroniques à base de semi-conducteurs organiques en couches minces." Thèse, 2015. http://hdl.handle.net/1866/16002.
Повний текст джерела