On the function of a bathocuproine buffer layer in organic photovoltaic cells

被引：167

作者：

Vogel, M. ^{[1
]}

Doka, S. ^{[1
]}

Breyer, Ch. ^{[1
]}

Lux-Steiner, M. Ch. ^{[1
]}

Fostiropoulosa, K. ^{[1
]}

机构：

[1] Hahn Meitner Inst Berlin GmbH, D-14109 Berlin, Germany

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 16期

关键词：

D O I：

10.1063/1.2362624

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The role of bathocuproine (BCP) buffer layer inserted between active layer and Al contact in photovoltaic cells based on phthalocyanine (Pc) and C-60 was investigated. Photoluminescence (PL) experiments show exciton quenching at the C-60-Al interface to be strongly reduced by inserting BCP. Current-voltage characteristics of photovoltaic cells with planar geometry front electrode/Pc/C-60/BCP/Al show that BCP dramatically improves electron transport out of the C-60 film into the Al electrode. The tenfold increase in power conversion efficiency (eta) with BCP can mostly be attributed to the latter effect. BCP does not improve eta in photovoltaic cells with blend film geometry front electrode/Pc:C-60/Al. (c) 2006 American Institute of Physics.

引用

页数：3

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