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Ternary compound thin film solar cells. Quarterly report No. 3, 1 Mar--31 May 76. [CuInSe/sub 2//CdS]

Technical Report ·
OSTI ID:7113609
The status of the CuInSe/sub 2//CdS heterojunction is discussed. An efficiency of 5.7% is reported for a device illuminated through the CdS layer. I-V and spectral response characteristics are presented. The first thin film CuInS/sub 2/ homojunction photovoltaic device is also reported. Device fabrication and characteristics are discussed. The production of an epitaxial thin film CuInS/sub 2/ single crystal Si photovoltaic junction with 4.9% efficiency is reported. Photoconductive properties of the ternary thin films are indicated. The temperature dependences of the energy gaps of CuInS/sub 2/, CuInSe/sub 2/ and CuInTe/sub 2/ thin films are derived from photoconductivity spectral response measurements. Defects in the chalcopyrite crystal structure are discussed. Dislocation properties are indicated for edge, screw and mixed types.
Research Organization:
Maine Univ., Orono (USA). Dept. of Electrical Engineering
OSTI ID:
7113609
Report Number(s):
PB-256254; NSF/RANN/SE/AER-7519576/PR/75/3
Country of Publication:
United States
Language:
English