Flexible and light weight substrates for Cu(In,Ga)Se2 solar cells and modules

被引：60

作者：

Hartmann, M ^{[1
]}

Schmidt, M ^{[1
]}

Jasenek, A ^{[1
]}

Schock, HW ^{[1
]}

Kessler, F ^{[1
]}

Herz, K ^{[1
]}

Powalla, M ^{[1
]}

机构：

[1] Univ Stuttgart, Inst Phys Elekt, D-70569 Stuttgart, Germany

来源：

CONFERENCE RECORD OF THE TWENTY-EIGHTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 2000 | 2000年

关键词：

D O I：

10.1109/PVSC.2000.915924

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：

We report on the fabrication and characterization of ZnO/CdS/Cu(In,Ga)Se-2 solar cells on flexible metal and polymer substrates. Na for the absorber was provided by NaF precursor films deposited prior to CIGS coevaporation. The optimum precursor layer thickness was about 30 Angstrom and 100-200 Angstrom for CIGS on polymer and metal substrates, respectively. In comparison with reference CIGS solar cells on soda lime glass substrates mainly the open circuit voltage on flexible foil substrates is decreased. This is explained by insufficient Na content of the CIGS layers and diffusion of substrate constituent elements into the absorber. Secondary ion mass spectrometry of solar cells on Fe/Ni alloy substrates shows impurities of Fe, Ni and Co inside the absorbers. An increased density of deep defects was identified in these solar cells by admittance spectrometry. CIGS solar module fabrication have been demonstrated on enamel coated steel substrates as well as on thin insulated (125 mum) ferritic steel foils.

引用

页码：638 / 641

页数：4

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