Growth analysis of chemical bath deposited In(OH)xSy films as buffer layers for CuInS2 thin film solar cells

被引:17
作者
Kaufmann, C [1 ]
Dobson, PJ [1 ]
Neve, S [1 ]
Bohne, W [1 ]
Klaer, J [1 ]
Klenk, R [1 ]
Pettenkofer, C [1 ]
Röhrich, J [1 ]
Scheer, R [1 ]
Störkel, U [1 ]
机构
[1] Univ Oxford, Dept Engn Sci, Oxford OX1 3PJ, England
来源
CONFERENCE RECORD OF THE TWENTY-EIGHTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 2000 | 2000年
关键词
D O I
10.1109/PVSC.2000.915959
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Although the deposition of In(OH)(x)S-y by chemical bath deposition has been successfully demonstrated before, the deposition mechanism remains unclear. Using x-ray photoelectron spectroscopy we have identified two growth phases: an initial nucleation of mainly In(OH)(x)O-y followed by rapid, mainly colloidal growth of In(OH)xSy. The deposited films are additionally characterized using elastic recoil detection analysis, transmission and scanning electron microscopy. An indirect energy band gap was observed at similar to2.2eV by optical transmission spectroscopy. The method has been used to make a Cd-free buffer layer for CuInS2 thin film solar cells and an efficiency of 9.1% has been achieved.
引用
收藏
页码:688 / 691
页数:4
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