High-efficiency CuIn[sub [ital x]]Ga[sub 1[minus][ital x]]Se[sub 2] solar cells made from (In[sub [ital x]],Ga[sub 1[minus][ital x]])[sub 2]Se[sub 3] precursor films

Journal Article · Mon Jul 11 00:00:00 EDT 1994 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.112670· OSTI ID:7040158

Gabor, A M; Tuttle, J R; Albin, D S; Contreras, M A; Noufi, R ^[1]; Hermann, A M ^[2]

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1. National Renewable Energy Laboratory, Golden, Colorado 80401 (United States)
2. University of Colorado, Boulder, Colorado 80309-0390 (United States)

In, Ga, and Se were coevaporated to form precursor films of (In[sub [ital x]],Ga[sub 1[minus][ital x]])[sub 2]Se[sub 3]. The precursors were then converted to CuIn[sub [ital x]]Ga[sub 1[minus][ital x]]Se[sub 2] by exposure to a flux of Cu and Se. The final films were smooth, with tightly packed grains, and had a graded Ga content as a function of film depth. Photovoltaic devices made from these films showed good tolerance in device efficiency to variations in film composition. A device made from these films resulted in the highest total-area efficiency measured for any non-single-crystal, thin-film solar cell, at 15.9%.

• DOE Contract Number: AC02-83CH10093
• OSTI ID: 7040158
• Journal Information: Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 65:2; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
AMINES
AMMONIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
COPPER SELENIDE SOLAR CELLS
COPPER SELENIDES
DIRECT ENERGY CONVERTERS
EFFICIENCY
EQUIPMENT
FILMS
GALLIUM COMPOUNDS
GALLIUM SELENIDES
INDIUM COMPOUNDS
INDIUM SELENIDE SOLAR CELLS
INDIUM SELENIDES
ORGANIC COMPOUNDS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
QUATERNARY COMPOUNDS
SELENIDES
SELENIUM COMPOUNDS
SOLAR CELLS
SOLAR EQUIPMENT
THIN FILMS
TRANSITION ELEMENT COMPOUNDS