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Showing 1 to 20 of 61 for “"cadmium telluride"”.
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Cyclotron Resonance in Cadmium-Telluride
Made available in DSpace on 2015-05-12T21:41:30Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6500848.PDF: 3124153 bytes, checksum: 4dee773f1804e4c323339942c1165276 (MD5) Previous issue date: 1964
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Cyclotron resonance in cadmium telluride
"Cyclotron resonance experiments have been performed on single crystals of high purity, n-type CdTe at 4.2°K. A reflection type microwave spectrometer was employed, operating at a frequency of 70 Gc. The mass and the mobility of the carriers, as determined from the resonance spectra, identify the …
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DFT calculations for cadmium telluride (CdTe)
Cadmium Telluride (CdTe) thin film photovoltaics (PV) has demonstrated low Levelized Cost of Energy (LCOE). CdTe technology also counted for half the thin film market in 2013 [3]. CdTe PV has the smallest carbon footprint a nd the energy payback time (less than one year) is the shortest of any …
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Structural studies of cadmium telluride thin films
… (a = 4.56 A , c = 7.48 A0 ) along with some pure cadmium and tellurium present in the films. In addition the electrical properties and its 9pendence upon these factors was determined. A maximum resistivity of 10 Ohm-metre was measured for films produced by flash evaporation at a substrate …
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Zirconium nitride contacts for cadmium telluride solar cells
CdTe/CdS solar cells were produced with ZrN as a back contact by magnetron sputtering. ZrN films have been produced with crystalline quality and uniformity on CdTe. With good crystalline quality and uniformity on substrate materials, ZrN films have a low resistivity of 12.3 to 22.0 μΩ-cm, …
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Photoluminescence Study of Defects in Mercury Cadmium Telluride
Submitted by Meng Tao (mengtao2@illinois.edu) on 2012-10-12T20:59:11Z No. of bitstreams: 1 Furstenberg_Robert.pdf: 3021685 bytes, checksum: 9b448a1e45eb387f0bf81d018a5a9ff9 (MD5)
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Synthesis and shape control of functionalized cadmium telluride nanoparticles
The synthesis of organically and water soluble cadmium telluride nanoparticles by a facile hybrid solution high temperature method is presented. This method involves the reaction by the addition of an aqueous suspension or solution of a cadmium salt (chloride, acetate, nitrate or carbonate) to a …
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Imaging as characterization techniques for thin-film cadmium telluride photovoltaics
The goal of increasing the efficiency of solar cell devices is a universal one. Increased photovoltaic (PV) performance means an increase in competition with other energy technologies. One way to improve PV technologies is to develop rapid, accurate characterization tools for quality control. …
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Electrical and optical properties of bias stressed cadmium telluride solar cells
Includes bibliographical references (pages 140-143).
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Cathodoluminescence of radiation damage, non-stoichiometric and impurity defects in cadmium telluride
… liquid helium temperature cathodoluminescence of cadmium telluride have been investigated. Under such treatment the responses of the emissions have cast some doubt on the previously accepted significance of the simple cadmium vacancy acceptor in the edge emission spectrum of the material. The …
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Measurement and Modeling of Blocking Contacts for Cadmium Telluride Gamma Ray Detectors
… with high density and atomic number, such as Cadmium Telluride (CdTe), offer a small device footprint, but their performance is limited by noise at room temperature; however, improved device design can decrease detector noise by reducing leakage current. This thesis characterizes and models …
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Drift Mobility Measurements and Electrical Characterization in Thin Film Cadmium Telluride Solar Cells
<p>Thin film CdTe solar cells are leading the production in the thin film photovoltaic industry for the recent few years. The electric properties and mechanism for fabrication of high efficiency solar cells are still not well established. In this thesis, I’ll report electron and hole drift …
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Fixed pattern noise compensation in a mercury cadmium telluride infrared focal plane array
… of spatial noise artifacts in a mercury cadmium telluride infrared camera system. The spatial noise artifacts are a result of nonuniformities within the infrared focal plane detector array. The techniques presented dispense with the need for traditional temperature references, and provide …
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Experimental Interrogation Of One-Dimensional Excitons In Cadmium Selenide And Cadmium Telluride Quantum Nanostructures
<p>The lengths of one-dimensional quantum wires: QWs) make them excellent candidates for implementation into devices that require charge transport over micrometer-scale distances. Additionally, their tunable band-gap energies, polarized emission, and large absorption cross sections make them quite …
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Low temperature photoluminescence studies on sputter deposited cadmium sulphide/cadmium telluride heterojunctions and solar cells
… is thought to be either due to Cu occupying cadmium vacancies (VCd) or forming acceptor complexes with them. This points to a potential role of Cu in plugging sub-band gap recombination routes and hence increasing charge separation ability of the device. An energy band diagram is presented …
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An investigation of mercury zinc telluride-cadmium telluride strained-layer superlattices grown by molecular beam epitaxy.
An investigation of mercury zinc telluride-cadmium telluride strained-layer superlattices grown by molecular beam epitaxy.
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Measurement of the Nonlinear Susceptibilities of Tellurium, Selenium, Cadmium-Telluride, and Indium-Antimonide at 28.0 Microns
Made available in DSpace on 2014-12-10T19:07:09Z (GMT). No. of bitstreams: 1 7317412.pdf: 2958619 bytes, checksum: 478f78a2562df3be63b5361d00ad606f (MD5) Previous issue date: 1972
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Carrier transport, recombination, and the effects of grain boundaries in polycrystalline cadmium telluride thin films for photovoltaics
Cadmium Telluride (CdTe), a chalcogenide semiconductor, is currently used as the absorber layer in one of the highest efficiency thin film solar cell technologies. Current efficiency records are over 22%. In 2011, CdTe solar cells accounted for ~8% of all solar cells installed. This is because, in …
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Core-Level Photoemission Investigations of the Cadmium-Telluride(100) and Indium-Antimony(100) Surface and Interfacial Structures
Photoemission techniques, utilizing a synchrotron light source, were used to analyze the clean (100) surfaces of the zinc-blende semiconductor materials CdTe and InSb. Several interfacial systems involving the surfaces of these materials were also studied, including the CdTe(100)-Ag interface, the …
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