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Photocharge Transport and Recombination Measurements in Amorphous Silicon Films and Solar Cells by Photoconductive Frequency Mixing: Annual Subcontract Report, 20 April 1999 - 19 April 2000

Description: This report describes research focused on improving the individual component cells from which the multijunction devices are fabricated. The Mid-Bandgap and Metastability subteam and the Low-Bandgap subteam have the responsibility to develop appropriate materials for the respective layer of the triple-junction solar cell. To this end, it is necessary to characterize the materials that are prepared for the appropriate layer to optimize the devices and to develop an understanding of the conditions… more
Date: August 29, 2001
Creator: Braunstein, R.; Kathwinkel, A. & Sheng, S. R. (University of California/Los Angeles)
Partner: UNT Libraries Government Documents Department
open access

NREL Spurred the Success of Multijunction Solar Cells (Fact Sheet)

Description: Many scientists once believed that high-quality gallium indium phosphide (GaInP) alloys could not be grown for use as semiconductors because the alloys would separate. However, researchers at the National Renewable Energy Laboratory (NREL) thought differently, and they employed GaInP in a material combination that allowed the multijunction cell to flourish. The multijunction cell is now the workhorse that powers satellites and the catalyst for renewed interest in concentrator photovoltaic produ… more
Date: August 1, 2013
Partner: UNT Libraries Government Documents Department
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