Cu(In,Al)S 2 Thin Film Solar Cell

A Cu(In,Al)S 2 thin film solar cell has exhibited good adhesion to Mo-coated glass and comparatively high efficiency. The sputter-deposited metallic precursor was sulfurized and then treated in a KCN solution to remove a Cu x S impurity phase and an excessive Al compound from the film surface. When...

Full description

Saved in:
Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 44; no. 3R; p. 1204
Main Authors Inazu, Takuya, Bhandari, Ramesh Kumar, Kadowaki, Yuji, Hashimoto, Yoshio, Ito, Kentaro
Format Journal Article
LanguageEnglish
Published 01.03.2005
Online AccessGet full text

Cover

More Information
Summary:A Cu(In,Al)S 2 thin film solar cell has exhibited good adhesion to Mo-coated glass and comparatively high efficiency. The sputter-deposited metallic precursor was sulfurized and then treated in a KCN solution to remove a Cu x S impurity phase and an excessive Al compound from the film surface. When the precursor layer was Cu-rich, the treated sulfide film could be used as an efficient absorber material. It had the same band gap as CuInS 2 . The spectral response of the cell was increased in a short wavelength range. The bottom region of the film was considered to consist of a Cu(In,Al)S 2 alloy that enhanced the film adhesion to the Mo back contact. The film was analyzed using X-ray diffraction, electron probe microanalysis, scanning electron microscopy and field ion microscopy combined with focused ion beam technique.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.44.1204