Development of High-Performance Transparent Conducting Oxides and Their Impact on the Performance of CdS/CdTe Solar Cells

Research output: Contribution to conferencePaper

Abstract

This paper begins with a review of the modeled performance of transparent conducting oxides (TCOs) as a function of their free-carrier concentration, mobility, and film thickness. It is shown that it is vital to make a film with high mobility to minimize the width and height of the free-carrier absorption band, and to optimize the optical properties. The free-carrier concentration must be keptsufficiently small that the absorption band does not extend into that part of the spectrum to which the solar cell responds. Despite this consideration, a high electrical conductivity is essential to minimize series resistance losses. Hence, a high mobility is vital for these materials. The fabrication of thin-films of cadmium stannate is then discussed, and their performance is compared withthat of tin oxide, both optically and as these materials influence the performance of CdTe solar cells.
Original languageAmerican English
Number of pages5
StatePublished - 1998
Event2nd World PV Conference on Energy Conversion - Vienna, Austria
Duration: 6 Jul 199810 Jul 1998

Conference

Conference2nd World PV Conference on Energy Conversion
CityVienna, Austria
Period6/07/9810/07/98

NREL Publication Number

  • NREL/CP-520-23880

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