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

Beach, J. ; Seymour, F. H. ; Kaydanov, V. I. ; Ohno, T. R.

National Renewable Energy Laboratory (U.S.)

关键词: 14 Solar Energy;    Electric Potential;    Transients;    Gas-Jet System;    Solar Cells;   

DOI  :  10.2172/898922
RP-ID  :  NREL/SR-520-41097
RP-ID  :  AC36-99-GO10337
RP-ID  :  898922

美国|英语

来源: UNT Digital Library

【 摘 要 】

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 structure and processing procedures.