Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 433 for “"CdS"”.
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Secure communication : CDS, PIR, PSM
… Messages. We give extensions of PIR and CDS in the area of generalized wildcards, and give constructions for those extensions. We discuss directions towards more ecient protocols, and raise open questions.
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Preparation and characterization of CdS nanoparticles
Zusammenfassung CdS-Nanoteilchen mit Größen zwischen 1.1 und 4.2 nm wurden in Äthanol und mit Thioglycerol (TG)-Hülle synthetisiert. Es wurde gezeigt, dass die nass-chemische Synthese ohne Wasser und die Verwendung von TG als Hülle folgende Vorteile bieten: Es konnten kleinere Teilchen hergestellt …
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Inducing Chirality in CdS Nanocrystals with Biomolecules
… this glycine-mediated exchange strategy to CdS nanorods (NRs) and examines how Cys concentration and local coordination environment influence NR optical properties, including UV-Vis absorbance, CD, and photoluminescence. These studies reveal that Cys derivatives can be detected at µM …
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Colloidal CdSe/CdS nanostructures : synthesis, optical characterization and applications
The focus of this thesis is the study of CdSe/CdS nanostructures, from their fundamental properties to their integration in practical devices. This material system has proven to be remarkably robust both as a platform for studying physics in confined semiconductors, as well as for enabling various …
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The Seebeck effect in thin film CdS and ZnₓCd₁₋ₓS
… resistivity measurements are made on thin film CdS and Zn<sub>x</sub>Cd<sub>1-x</sub>S samples in an apparatus of original design over a temperature range from near liquid nitrogen temperature to room temperature. The temperature dependence of mobility and carrier concentration is studied in CdS …
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Research and development of CdS/CdTe solar cells incorporating ZnTe layers.
… table. The semiconductors are cadmium sulfide (CdS), cadmium telluride (CdTe) and zinc telluride (ZnTe).All of these layers were obtained by growing them using electrodeposition in aqueous solutions. In this project, electrodeposition using 2-electrode system was employed to deposit all of the …
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Structural and electrical characteristics of CdS-Cu2S thin film solar cells
… and operational stability of front-wall CdS-Cu2S solar cells. In the course of this work -1 cm2 cells were fabricated with conversion efficiency of up to 8% without attempting to reduce reflection losses.The CdS films were produced by vacuum evaporation and the electrical and structural …
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Development of high efficiency polycrystalline CdTe/CdS solar cells using electrodeposition
Includes bibliographical references (pages 125-129).
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Lattice vibrational spectra of several mixed crystals of Cds and CdSe.
Thesis: M.S., Massachusetts Institute of Technology, Department of Physics, 1967
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Characterization and modeling of CdCl2 treated CdTe/CdS thin-film solar cells
… step in the production of high efficiency CdTe/CdS solar cells is a post-CdTe deposition heat treatment with CdCl2, which can improve performance by promoting CdTe recrystallization, QE response, defect passivation and others. Understanding the effects of the CdCl2 treatment is crucial in order …
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Thin film solar cells using all-electrodeposited ZnS, CdS and CdTe materials.
… using these materials.Electronic quality ZnS, CdS, and CdTe thin layers have been successfully electrodeposited from aqueous solutions on glass/fluorine-doped tin oxide (FTO) substrates, using simplified two-electrode system instead of the conventional three-electrode system. This process was …
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Study of deep level defects of N+-CdS/P-CdTe solar cells
… identified. In this research the thin film n^+-CdS/p-CdTe solar cells made with evaporated Cu as a primary back contact, are characterized by using the temperature dependence of the reverse bias diode current (J-V-T) to determine the energy levels of deep defects. The results of the J-V-T …
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Efficiency enhancement and degradation processes in CuxS/CdS thin film solar cells
… structure and properties of polycrystalline CuxS-CdS solar cells in order to develop an improved understanding of some of the processes which lead to unsatisfactory reproducibility and long term stability of the characteristics of these devices. The cells studied during this project were …
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