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Статті в журналах з теми "InP/ZnS quantum dots"
Wang, Juan, Shun Feng, Qingqing Sheng, and Ruilin Liu. "Influence of InP/ZnS Quantum Dots on Thermodynamic Properties and Morphology of the DPPC/DPPG Monolayers at Different Temperatures." Molecules 28, no. 3 (January 22, 2023): 1118. http://dx.doi.org/10.3390/molecules28031118.
Повний текст джерелаKulakovich, O. S., L. I. Gurinovich, L. I. Trotsiuk, A. A. Ramanenka, Hongbo Li, N. A. Matveevskaya, and S. V. Gaponenko. "Manipulation of the quantum dots photostability using gold nanoparticles." Doklady of the National Academy of Sciences of Belarus 66, no. 2 (May 6, 2022): 148–55. http://dx.doi.org/10.29235/1561-8323-2022-66-2-148-155.
Повний текст джерелаLian, Linyuan, Youyou Li, Daoli Zhang, and Jianbing Zhang. "Synthesis of Highly Luminescent InP/ZnS Quantum Dots with Suppressed Thermal Quenching." Coatings 11, no. 5 (May 17, 2021): 581. http://dx.doi.org/10.3390/coatings11050581.
Повний текст джерелаHarabi, Imen, Yousaf Hameed Khattak, Safa Jemai, Shafi Ullah, Hanae Toura, and Bernabe Mari Soucase. "InP/ZnS/ZnS core quantum dots for InP luminescence and photoelectrochemical improvement." Physica B: Condensed Matter 652 (March 2023): 414634. http://dx.doi.org/10.1016/j.physb.2023.414634.
Повний текст джерелаAyupova, Deanna, Garima Dobhal, Geoffry Laufersky, Thomas Nann, and Renee Goreham. "An In Vitro Investigation of Cytotoxic Effects of InP/Zns Quantum Dots with Different Surface Chemistries." Nanomaterials 9, no. 2 (January 22, 2019): 135. http://dx.doi.org/10.3390/nano9020135.
Повний текст джерелаGao, Shuai, Chunfeng Zhang, Yanjun Liu, Huaipeng Su, Lai Wei, Tony Huang, Nicholas Dellas, et al. "Lasing from colloidal InP/ZnS quantum dots." Optics Express 19, no. 6 (March 9, 2011): 5528. http://dx.doi.org/10.1364/oe.19.005528.
Повний текст джерелаSu, Yu Yang, Kai Ling Liang, and Chyi Ming Leu. "Cd-Free Quantum Dot Dispersion in Polymer and their Film Molds." Advances in Science and Technology 98 (October 2016): 38–43. http://dx.doi.org/10.4028/www.scientific.net/ast.98.38.
Повний текст джерелаZhang, Xinsu, Hao Lv, Weishuo Xing, Yanjun Li, Chong Geng, and Shu Xu. "Trioctylphosphine accelerated growth of InP quantum dots at low temperature." Nanotechnology 33, no. 5 (November 12, 2021): 055602. http://dx.doi.org/10.1088/1361-6528/ac3180.
Повний текст джерелаCheng, Xunqiang, Mingming Liu, Qinggang Zhang, Mengda He, Xinrong Liao, Qun Wan, Wenji Zhan, Long Kong, and Liang Li. "A Novel Strategy to Enhance the Photostability of InP/ZnSe/ZnS Quantum Dots with Zr Doping." Nanomaterials 12, no. 22 (November 17, 2022): 4044. http://dx.doi.org/10.3390/nano12224044.
Повний текст джерелаKim, Hwi-Jae, Jung-Ho Jo, Suk-Young Yoon, Dae-Yeon Jo, Hyun-Sik Kim, Byoungnam Park, and Heesun Yang. "Emission Enhancement of Cu-Doped InP Quantum Dots through Double Shelling Scheme." Materials 12, no. 14 (July 15, 2019): 2267. http://dx.doi.org/10.3390/ma12142267.
Повний текст джерелаДисертації з теми "InP/ZnS quantum dots"
Carlini, Lina. "Photosensitization of InP/ZnS quantum dots for photodynamic therapy." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=106430.
Повний текст джерелаLa thérapie photodynamique (TPD) est un traitement médical qui détruit les cellules cancéreuses en utilisant des photons de lumière, typiquement en forme de laser, afin d'activer des drogues photosensibles. Présentement, les médicaments approuvés pour usage clinique ont d'importantes limitations. Particulièrement, le coefficient d'absorption des tissus humains se retrouve dans la même gamme de longueur d'onde où les médicaments sont excitables; par conséquent, leur efficacité est compromise. Les nanoparticules de matériaux semi-conducteurs, appelées aussi points quantiques (PQs), ont l'habilité de surpasser cette limitation parce qu'ils peuvent être produits pour absorber la lumière à n'importe quelle longueur d'onde. L'objectif de cette thèse est donc d'évaluer la possibilité d'utiliser les PQs pour la TPD. Plus spécifiquement, les PQs composés d'un cœur de phosphure d'indium (InP) avec une coquille du sulfure de zinc (ZnS) ont été examinés. La spectroscopie par résonance paramagnétique électronique (RPE) et les tests colorimétriques ont été utilisés pour identifier la nature des espèces toxiques produites, ainsi que le mécanisme responsable de leur formation. Les résultats ont montré que les particules de InP/ZnS produisent des anions de superoxyde et des radicaux d'hydroxyle; la quantité des radicaux formés dépend de l'épaisseur de la coquille ZnS. En plus, la microscopie confocale a été utilisée pour évaluer l'ingestion intracellulaire des PQs par divers types de cellules. Ces images ont démontré que les PQs se concentrent dans le cytoplasme autour du noyau et que les cellules mélanomes de type B16 sont celles qui absorbent le plus (2.5 fois plus que les cellules KB). Finalement, les PQs ont été conjuguées à un agent chimiothérapeutique (doxorubicin (Dox)) et leur toxicité a été explorée par cytométrie en flux et des tests colorimétriques. La mort cellulaire a augmenté avec l'attachement de PQs, ce qui s'explique par une amélioration de la livraison intracellulaire de Dox. En conclusion, les PQs InP/Zn révèlent être des candidats prometteurs en tant que médicaments et agents de livraison pour la TPD, cependant certains éléments de leur structure restent à être améliorés.
Panzer, Rene, Chris Guhrenz, Danny Haubold, Rene Hübner, Nikolai Gaponik, Alexander Eychmüller, and Jan J. Weigand. "Tri(pyrazolyl)phosphane als Phosphorpräkursoren für die Synthese von hochemittierenden InP/ZnS Quantenpunkten." Technische Universität Dresden, 2018. https://tud.qucosa.de/id/qucosa%3A31166.
Повний текст джерелаPanzer, Rene, Chris Guhrenz, Danny Haubold, Rene Hübner, Nikolai Gaponik, Alexander Eychmüller, and Jan J. Weigand. "Versatile Tri(pyrazolyl)phosphanes – Application as phosphorus precursors for the synthesis of highly emitting InP/ZnS quantum dots." Technische Universität Dresden, 2018. https://tud.qucosa.de/id/qucosa%3A31156.
Повний текст джерелаAlbahrani, Sayed Mohamed Baqer. "Photoluminescent CdSe/CdS/ZnS quantum dots for temperature and pressure sensing in elastohydrodynamic." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI016/document.
Повний текст джерелаTemperature and pressure are two relevant parameters for the optimization of lubrication performance in the elastohydrodynamic lubrication (EHL) regime. To date, various experimental methods have been developed to measure these two parameters with more or less success. In a continuation of these efforts, some investigations are presented in the current work in view of developing a new in situ technique allowing for local measurements of these two parameters throughout elastohydrodynamic (EHD) contacts. This technique exploits the photoluminescence (PL) sensitivity of CdSe/CdS/ZnS quantum dots (QDs) to changes in temperature and pressure. In this respect, calibrations have been carried out in order to establish the sensitivity of these QDs to the two parameters. Moreover, the versatility of these QDs for sensing applications have been examined by testing two different lubricants, namely squalane and a mixture of squalane and cyclopentane. Some measurements were also conducted under dynamic conditions, in order to study (i) the influence of the QDs presence on the lubricant rheology and (ii) the influence of shear rate on the PL of QDs. Although these different tests demonstrated the potential of CdSe/CdS/ZnS QDs, they revealed the existence of other parameters that affect, in addition to temperature and pressure, their response. A comprehensive study was thus conducted in order to elucidate the mechanisms behind these findings. More importantly, a methodology was defined in order to minimize these undesired influences and, in fine, enable these QDs to be used as reliable nanosensors
Virieux, Heloise. "Nanocristaux luminescents de phosphures d'indium et de zinc : synthèse, enrobage et caractérisation." Thesis, Toulouse, INSA, 2013. http://www.theses.fr/2013ISAT0030/document.
Повний текст джерелаRésumé de la thèse en anglais : This PhD investigation focuses on organometallic synthesis of indium phosphide (InP), zinc phosphide (Zn3P2) colloidal semiconductor nanoparticles (NPs) and core/shell structures which were obtained by the growth of a layer of zinc sulfide (ZnS) on the surface. The objectives are to understand and control the synthesis in order to shift the absorption and emission wavelengths to the near infra-red range, interesting for biomedical imaging.The first chapter presents the state of the art on the InP and InP/ZnS nanocrystals (NCx). A brief recall on the physical and chemical properties of semiconductor NCx is presented and various syntheses are described. Particular attention was paid to the size of NCx, the shift of the fluorescence emission to higher wavelengths and the optimization of quantum yields. The potential of these objects for white light emitting diodes (LED) or biomedical imaging shows the value added of using InP/ZnS NCx rather than other materials based on toxic elements such as cadmium, lead elements…The second chapter focuses on a synthesis from indium carboxylates known in the literature. The goal is to characterize the structure of NPs to understand the procedure of the synthesis and the coating. Measurements by Nuclear Magnetic Resonance (NMR) in solid state and Photoelectronic X-ray spectroscopy (XPS) revealed the oxidation of InP of the NPs. This oxide layer increases during the coating. This originates from a decarboxylating coupling of carboxylic acids at high temperature in the presence of NPs. This oxidation is believed to inhibit the growth of the object, which restricts the attainable range of wavelengths.The third chapter provides a novel synthesis from indium amidinate instead of indium carboxylate. The advantage of this approach is the potential to lower significantly the reaction temperature (150°C instead of 280°C) and to avoid secondary decarboxylation reaction. A coating with ZnS at low temperature (150°C) is also developed. The synthesis of InP NPs also causes an oxidation of the surface. A coupling takes place again between the ligands, palmitic acid and hexadecylamine providing new oxidizing conditions. The study of different ratios of ligands shows that when the reaction medium is modified, the InP NPs do not exhibit a conclusive luminescence response. Synthesis and coating are carried out under an atmosphere of hydrogen (H2) in Fisher-Porter reactor in order to counter these oxidizing conditions. NPs with diameters of the order of 3,4 nm (a necessary condition to approach the infra-red emission) and a quantum yield of 18-20% are thus obtained. These had never been observed before during this thesis.The last chapter is devoted to an exploratory study on Zn3P2 NPs. Zinc phosphide is a promising material because of non-toxic and abundant constituents, and potential access to near infra-red wavelengths. Different synthesis parameters are studied and the structural and optical properties are characterized. Preliminary results on the coating show instabilities of the Zn3P2 NPs. The use of trioctylphoshine oxide (TOPO) appears to allow the passivation of the NPs in the air and a better stability is possible under an atmosphere of H2
Boonkoom, Thitikorn. "InP quantum dots for hybrid photovoltaic devices." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/17778.
Повний текст джерелаWinzell, Ann. "Surface Modification of CdSe(ZnS) quantum dots for biomedical applications." Thesis, Linköping University, Department of Physics, Chemistry and Biology, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-56022.
Повний текст джерелаQuantum dots are inorganic nanocrystals of semiconductor metals that have unique light emitting properties. Due to their tunable and narrow emission profile, broad absorption spectra, resistance to photobleaching and high level of brightness they have emerged as inorganic fluorophores and numerous applicabilities for in vitro, in situ as well as in vivo studies are present. The chemical nature of the quantum dot surface needs to be altered in order to make the inorganic nanoparticles applicable to biological systems. Water soluble and biocompatible particles that limit unspecific binding to proteins can be obtained through functionalization of the surface coating with appropriate molecules.
In this pilot study, two surface modification strategies were performed upon two commercially available quantum dots in order to attach the zwitterionic molecules L-cysteine and thiolated sulfobetaine methacrylate, both shown to create non-fouling and biocompatible surfaces.
A biphasic exchange method was successfully used to perform ligand exchange of Qdot® ITK™ Organic Quantum Dots (QD-Organic) in order to exchange the structurally unknown, native lipophilic coating to one consisting of the amino acid L-cysteine (QD-Cysteine). The quantum dots transferred from the organic to the aqueous phase after the natively hydrophobic coating was changed to the hydrophilic L-cysteine. A characteristic mass fragment of protonated trioctylphosphine oxide (TOPO) was found for QD-Organic, using TOF-SIMS, suggesting TOPO is a part of the native coating. Further, the mentioned mass fragment was no longer present after the exchange. The C (1s) XPS-spectrum showed a new peak for carboxylic carbon, characteristic for L-cysteine, and expected changes in elemental composition were consistent with measured changes for all relevant elements. Large amounts of buffer remained after purification, suggesting the purification protocol needs further evaluation. Traces of the native coating were found in the C (1s) XPS-spectrum for QD-Cysteine, indicating not all ligands were exchange.
Additionally, a strategy for surface functionalization of Qdot® 655 ITK™ amino (PEG) quantum dots (QD-PEG-NH2) with L-cysteine and thiolated sulfobetaine methacrylate was outlined and performed, using Michael addition and the heterobifunctional linker 3-Maleimidobenzoic acid N-hydroxysuccinimide ester. Unfortunately, no indications of successful attachment of the linker to the quantum dot have been found, neither by TOF-SIMS nor XPS, and thus functionalization with L-cysteine and tSBMA was not achieved. In theory, the proposed coupling chemistry used during the pilot study is promising, but further experiments are needed to obtain a successful and optimized protocol for the functionalization.
Cheriton, Ross. "Electrostatic Control of Single InAs Quantum Dots Using InP Nanotemplates." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/22758.
Повний текст джерелаKors, Andrei [Verfasser]. "InP - based quantum dots for telecom wavelengths ranges / Andrei Kors." Kassel : Universitätsbibliothek Kassel, 2020. http://d-nb.info/1222555239/34.
Повний текст джерелаAngell, Joshua James. "SYNTHESIS AND CHARACTERIZATION OF CdSe-ZnS CORE-SHELL QUANTUM DOTS FOR INCREASED QUANTUM YIELD." DigitalCommons@CalPoly, 2011. https://digitalcommons.calpoly.edu/theses/594.
Повний текст джерелаКниги з теми "InP/ZnS quantum dots"
Chithrani, Basnagge Devika. Spectroscopy of site selected InAs/InP quantum dots. 2004.
Знайти повний текст джерелаЧастини книг з теми "InP/ZnS quantum dots"
Savchenko, Sergey, Alexander Vokhmintsev, and Ilya Weinstein. "Exciton–Phonon Interactions and Temperature Behavior of Optical Spectra in Core/Shell InP/ZnS Quantum Dots." In Core/Shell Quantum Dots, 165–96. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-46596-4_5.
Повний текст джерелаYang, C. L., L. W. Lu, W. K. Ge, Z. H. Ma, I. K. Sou, and J. N. Wang. "Investigation of the properties of molecular beam epitaxy grown self-organized ZnSe quantum dots embedded in ZnS." In Springer Proceedings in Physics, 405–6. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-59484-7_188.
Повний текст джерелаRodhuan, Mirza Basyir, Rosmila Abdul-Kahar, and Amira Saryati Ameruddin. "Simulation on Optical Absorption for Amorphous Silicon Thin Film Solar Cell with CdSe/ZnS Quantum Dots." In Springer Proceedings in Physics, 81–93. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8903-1_9.
Повний текст джерелаMeng, Hong-Min, Juan Chen, Lingbo Qu, and Zhaohui Li. "Detection of Tetanus Antibody Applying a Cu-Zn-In-S/ZnS Quantum Dot-Based Lateral Flow Immunoassay." In Quantum Dots, 285–92. New York, NY: Springer US, 2020. http://dx.doi.org/10.1007/978-1-0716-0463-2_18.
Повний текст джерелаWang, Hung-Chia, and Ru-Shi Liu. "Synthesis of InP Quantum Dots and Their Application." In Phosphors, Up Conversion Nano Particles, Quantum Dots and Their Applications, 473–83. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1590-8_16.
Повний текст джерелаHöfling, C., C. Schneider, and A. Forchel. "6.5.5 Epitaxial quantum dots grown on InP substrate." In Growth and Structuring, 139–43. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-540-68357-5_23.
Повний текст джерелаKostić, Radmila, Dušanka Stojanović, Jelena Trajić, and P. Balaž. "Off-Resonant Raman Spectroscopy of ZnS Quantum Dots." In Proceedings of the IV Advanced Ceramics and Applications Conference, 203–15. Paris: Atlantis Press, 2017. http://dx.doi.org/10.2991/978-94-6239-213-7_16.
Повний текст джерелаStroyuk, Oleksandr, Oleksandra Raievska, and Dietrich R. T. Zahn. "Unique Luminescent Properties of Composition-/Size-Selected Aqueous Ag-In-S and Core/Shell Ag-In-S/ZnS Quantum Dots." In Core/Shell Quantum Dots, 67–122. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-46596-4_3.
Повний текст джерелаKurtenbach, A., K. Eberl, K. Brunner, and G. Abstreiter. "Self-Assembling InP/In0.48Ga0.52P Quantum Dots Grown by MBE." In Low Dimensional Structures Prepared by Epitaxial Growth or Regrowth on Patterned Substrates, 59–67. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0341-1_6.
Повний текст джерелаPark, Kwangmin, Pilkyung Moon, Eungjin Ahn, Sukwon Hong, Euijoon Yoon, Jeong Won Yoon, Hyeonsik Cheong, and Jean-Pierre Leburton. "Effects of Thin GaAs Insertion Layer on InAs/(InGaAs)/InP(001) Quantum Dots Grown by Metalorganic Chemical Vapor Deposition." In Physical Models for Quantum Dots, 701–8. New York: Jenny Stanford Publishing, 2021. http://dx.doi.org/10.1201/9781003148494-43.
Повний текст джерелаТези доповідей конференцій з теми "InP/ZnS quantum dots"
Li, Cheng-Sun, Wen-Jui Chiang, Nan-Ming Lin, Jia-Huei Lyu, Yi-Zhen Liu, Bo-Yi Wu, and Shih-Chang Shei. "White LEDs with InP-ZnS quantum dots." In 2016 5th International Symposium on Next-Generation Electronics (ISNE). IEEE, 2016. http://dx.doi.org/10.1109/isne.2016.7543304.
Повний текст джерелаZhang, Doudou, Yuxian Yan, Fan Cao, Gongli Lin, Xuyong Yang, Wanwan Li, Luqiao Yin, and Jianhua Zhang. "High color rendering index white LEDs fabricated using InP/ZnS green-emitting quantum dots and InP/ZnSe/ZnS red-emitting quantum dots." In 2019 16th China International Forum on Solid State Lighting & 2019 International Forum on Wide Bandgap Semiconductors China (SSLChina: IFWS). IEEE, 2019. http://dx.doi.org/10.1109/sslchinaifws49075.2019.9019770.
Повний текст джерелаGreco, Tonino, Christian Ippen, and Armin Wedel. "InP/ZnSe/ZnS core-multishell quantum dots for improved luminescence efficiency." In SPIE Photonics Europe. SPIE, 2012. http://dx.doi.org/10.1117/12.922885.
Повний текст джерелаShen, Gang, Nicholas Harris, Nabil Dawahre, David S. Wilbert, William Baughman, Elmer Rivera, David Nikles, Tony L. Bryant, Seongsin Margaret Kim, and Patrick Kung. "InP/ZnS core-shell quantum dots sensitized ZnO nanowires for photovoltaic devices." In 2011 International Semiconductor Device Research Symposium (ISDRS). IEEE, 2011. http://dx.doi.org/10.1109/isdrs.2011.6135235.
Повний текст джерелаMassadeh, Salam, Shu Xu, and Thomas Nann. "Synthesis and exploitation of InP/ZnS quantum dots for bioimaging." In SPIE BiOS: Biomedical Optics, edited by Marek Osinski, Thomas M. Jovin, and Kenji Yamamoto. SPIE, 2009. http://dx.doi.org/10.1117/12.816892.
Повний текст джерелаSavchenko, S. S., A. S. Vokhmintsev, and I. A. Weinstein. "Photoluminescence thermal quenching of yellow-emitting InP/ZnS quantum dots." In PHYSICS, TECHNOLOGIES AND INNOVATION (PTI-2018): Proceedings of the V International Young Researchers’ Conference. Author(s), 2018. http://dx.doi.org/10.1063/1.5055158.
Повний текст джерелаMöbius, Martin, Xiangyu Ma, Jörg Martin, Matthew F. Doty, Thomas Otto, and Thomas Gessner. "Photoluminescence quenching of InP/ZnS quantum dots by charge injection." In SPIE OPTO, edited by Manijeh Razeghi, Eric Tournié, and Gail J. Brown. SPIE, 2015. http://dx.doi.org/10.1117/12.2185047.
Повний текст джерелаNadeau, Jay, Hicham Chibli, and Lina Carlini. "Photosensitization of InP/ZnS quantum dots for anti-cancer and anti-microbial applications." In SPIE BiOS, edited by Wolfgang J. Parak, Kenji Yamamoto, and Marek Osinski. SPIE, 2012. http://dx.doi.org/10.1117/12.913648.
Повний текст джерелаLitvinov, I. K., T. N. Belyaeva, E. A. Leontieva, A. O. Orlova, and E. S. Kornilova. "Influence of microenvironment on the optical properties of quantum dots based on InP/ZnS and CdSe/ZnS." In 2020 International Conference Laser Optics (ICLO). IEEE, 2020. http://dx.doi.org/10.1109/iclo48556.2020.9285429.
Повний текст джерелаCHENG, CHENG, QINGHAO ZHANG, and HAIZHEN YAN. "SPECTRAL STABILITY OF CDSE/ZNS QUANTUM DOTS." In Proceedings of the 6th International Conference on Photonics and Imaging in Biology and Medicine (PIBM 2007). WORLD SCIENTIFIC, 2008. http://dx.doi.org/10.1142/9789812832344_0017.
Повний текст джерелаЗвіти організацій з теми "InP/ZnS quantum dots"
Scholtes, Kevin T., Christopher B. Jacobs, Eric S. Muckley, Patrick M. Caveney, and Ilia N. Ivanov. Scalable processing of ZnS nanoparticles for high photoluminescence efficiency quantum dots. Office of Scientific and Technical Information (OSTI), November 2018. http://dx.doi.org/10.2172/1482456.
Повний текст джерела