Design rules for donors in bulk-heterojunction solar cells -: Towards 10 % energy-conversion efficiency

被引:4587
作者
Scharber, MC
Wühlbacher, D
Koppe, M
Denk, P
Waldauf, C
Heeger, AJ
Brabec, CL
机构
[1] Konarka Austria, A-4040 Linz, Austria
[2] Univ Calif Santa Barbara, Dept Mat Sci, Santa Barbara, CA 93106 USA
基金
美国国家科学基金会;
关键词
D O I
10.1002/adma.200501717
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
For bulk-heterojunction photovoltaic cells fabricated from conjugated polymers and a fullerene derivative, the relation between the open-circuit voltage (V-oc) and the oxidation potential for different conjugated polymers is studied. A linear relation between V-oc and the oxidation potential is found (see figure). Based on this relation, the energy-conversion efficiency of a bulk-heterojunction solar cell is derived as a function of the bandgap and the energy levels of the conjugated polymer.
引用
收藏
页码:789 / +
页数:7
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