Indium-tin-oxide surface treatments:: Influence on the performance of CuPc/C60 solar cells

被引:38
作者
Djurisic, AB [1 ]
Kwong, CY
Chui, PC
Chan, WK
机构
[1] Univ Hong Kong, Dept Elect & Elect Engn, Hong Kong, Hong Kong, Peoples R China
[2] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
关键词
D O I
10.1063/1.1565824
中图分类号
O59 [应用物理学];
学科分类号
摘要
In this work, we investigate the influence of different indium tin oxide (ITO) surface treatments on the performance of organic solar cells. ITO substrates have been characterized by Hall measurements, Seebeck coefficient measurements, surface sheet resistance measurements, and surface probe microscopy. Single layer (ITO/copper phthalocyanine (CuPc)/Al) and double layer (ITO/CuPc/C-60/Al) solar cells were fabricated. It was found that the surface treatments changed the parameters of the ITO (work function, carrier concentration, sheet resistance, surface roughness) and significantly influenced the solar cell performance. The AM1 power conversion efficiency of the ITO/CuPc/C-60/Al cell with optimal surface treatment (similar to0.1%) is 1 order of magnitude larger than the power conversion efficiency of the solar cell fabricated on untreated ITO substrate (similar to0.01%). The AM1 power conversion efficiency can be further enhanced with improved device structures. Obtained AM1 power conversion efficiency for a three layer structure ITO/CuPc/CuPc:C-60 (1:1)/C-60/Al was measured to be 0.16%. (C) 2003 American Institute of Physics.
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收藏
页码:5472 / 5479
页数:8
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