Comparative study of the influence of LiF, NaF, and KF on the performance of polymer bulk heterojunction solar cells

被引：107

作者：

Ahlswede, Erik ^{[1
]}

Hanisch, Jonas ^{[1
]}

Powalla, Michael ^{[1
]}

机构：

[1] Zentrum Sonnenenergie & Wasserstoff Forsch Baden, D-70565 Stuttgart, Germany

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 16期

关键词：

D O I：

10.1063/1.2723077

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Based on the well-known beneficial effect of a thin LiF layer underneath Al contacts for organic solar cells, a comparative study of interlayers made from the alkaline fluorides LiF, NaF, and KF is presented for polymer bulk heterojunction solar cells. The overall suitability of these materials and the underlying mechanisms are discussed. While an improvement in cell efficiency up to a factor of 2 can be reached with all three fluorides, the necessary thickness of the interlayer for maximum improvement is smallest for NaF and largest for LiF, suggesting the alternative use of NaF instead of LiF. (c) 2007 American Institute of Physics.

引用

页数：3

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