In(O,OH)S/AgInS2 absorbent layer/buffer layer system for thin film solar cells

In this work In(O,OH)S thin films were deposited on AgInS2 thin films for the system absorbent-layer/buffer-layer to be used in two junctions tandem and/or in single junction solar cells. AgInS2 layers were grown by co-evaporation from metal precursors in a two stage process, and In(O,OH)S thin film...

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Bibliographic Details
Published in2012 38th IEEE Photovoltaic Specialists Conference pp. 001988 - 001991
Main Authors Arredondo, C. A., Vallejo, W., Hernandez, J., Gordillo, G.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2012
Subjects
absorbent layer
Absorption
AgInS 2
buffer layer
Buffer layers
In(O
Junctions
OH)S
Optical films
Photovoltaic cells
single junction solar cells
Substrates
tandem solar cells
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Summary:In this work In(O,OH)S thin films were deposited on AgInS2 thin films for the system absorbent-layer/buffer-layer to be used in two junctions tandem and/or in single junction solar cells. AgInS2 layers were grown by co-evaporation from metal precursors in a two stage process, and In(O,OH)S thin films were deposited by chemical bath deposition. X-ray diffraction measurements indicated that AgInS 2 thin films grown with chalcopyrite structure; and In(O,OH)S films grown with polycrystalline structure. It was also found that the AgInS 2 films presented p-type conductivity, a high absorption coefficient (greater than 10 4 cm -1 ) and an energy band gap (Eg) of 1.95 eV, and In(O,OH),S thin films presented Eg about 3.01 eV. The results indicate that the developed system can be used in single junction solar cells, and in two junctions tandem solar cell as top cell.
ISBN:1467300640
9781467300643
ISSN:0160-8371
DOI:10.1109/PVSC.2012.6317986