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in creator/contributor: "Kaydanov, V. I."  
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Studies of Basic Electronic Properties of CdTe-Based Solar Cells and Their Evolution During Processing and Stress: Final Technical Report, 16 October 2001 - 31 August 2005

Description: This report describes basic issues behind CdTe/CdS cell performance and stability, such as the nature and electronic properties of impurities and defects that control the majority carrier concentration, mechanisms of dopant compensation, recombination processes, their nature and properties, migration and transformation of defects under various processing, stress, and operating conditions. We believe that a better basic understanding of the specific influence of grain boundaries, especially for … more
Date: February 1, 2007
Creator: Kaydanov, V. I. & Ohno, T. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Studies of Basic Electronic Properties of CdTe-Based Solar Cells and Their Evolution During Processing and Stress; Annual Technical Report, 1 November 2005 - 31 October 2006

Description: We describe the results of our continuing study of deep electronic states controlling open-circuit voltage in CdTe/CdS thin-film solar cells (Task 1). The study includes: (1) analysis of factors affecting trap signatures derived from admittance spectroscopy and capacitance transients measurements, such as activation-energy capture cross-sections and trap-density estimates, and (2) comparative studies of cells received from four different sources and prepared with significant variations in cell … more
Date: January 1, 2007
Creator: Beach, J.; Seymour, F. H.; Kaydanov, V. I. & Ohno, T. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Process Development and Basic Studies of Electrochemically Deposited CdTe-Based Solar Cells: Final Technical Report, 15 May 1998 - 17 August 2001

Description: This report describes the long-term research and development issues related to polycrystalline thin-film solar cells. Our general research approach is based on combining activities aimed at improvement of cell performance and stability with activities aimed at increasing our fundamental understanding of the properties of materials making up the cells: CdTe, CdS, multi-layer back-contact, and transparent conducting oxide (TCO) front-contact. We emphasize the relation between structural and elect… more
Date: March 1, 2002
Creator: Kaydanov, V. I. & Ohno, T. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Studies of Band Structure and Free Carrier Scattering in Transparent Conducting Oxides Based on Combined Measurements of Electron Transport Phenomena

Description: Experimental methods are discussed for studying band structure, effective mass, and other electronic properties relevant to mobility, including scattering mechanisms, relaxation time, and the influence of grain boundaries (GBs) in polycrystalline transparent conducting oxide (TCO) films. Impedance spectroscopy permits evaluation of the GB potential barrier height and density-of-states. These studies enable an estimate of the limiting mobility achievable for practical transparent conducting oxid… more
Date: October 31, 2000
Creator: Kaydanov, V. I.; Coutts, T. J. & Young, D. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Process Development and Basic Studies of Electrochemically Deposited CdTe-Based Solar Cells; Annual Technical Report, Phase II, 16 May 1999-13 May 2000

Description: This project, carried out at the Colorado School of Mines, addresses long-term research and development issues related to polycrystalline thin-film solar cells. Our general research approach is based on combining activities aimed at improving cell performance and stability with activities aimed at increasing our fundamental understanding of the properties of materials making up the cells: CdTe, CdS, multilayer back-contact, and transparent conducting oxide (TCO) from contact. We emphasize the r… more
Date: April 3, 2001
Creator: Kaydanov, V. I. & Ohno, T. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Process Development and Basic Studies of Electrochemically Deposited CdTe-Based Solar Cells; Annual Technical Report, Phase I: May 15, 1998 - May 14, 1999

Description: The project describes long-term research and development issues related to polycrystalline thin-film solar cells. The general research approach is based on combining activities aimed at improvement of cell performance and stability with activities aimed at increasing fundamental understanding of the properties of materials making up the cells: CdTe, CdS, multi-layer back contact, and transparent conducting oxide (TCO) front contact. The authors emphasize the relation between structural and elec… more
Date: August 25, 2000
Creator: Kaydanov, V. I. & Ohno, T. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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