Efficient tandem organic solar cells with an Al/MoO3 intermediate layer

被引：132

作者：

Zhao, D. W. ^{[1
,2
]}

Sun, X. W. ^{[1
,2
]}

Jiang, C. Y. ^{[1
]}

Kyaw, A. K. K. ^{[1
]}

Lo, G. Q. ^{[1
]}

Kwong, D. L. ^{[1
]}

机构：

[1] ASTAR, Inst Microelect, Singapore 117685, Singapore

[2] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 08期

关键词：

D O I：

10.1063/1.2976126

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report efficient tandem organic solar cells with an Al and MoO3 intermediate layer. Such an intermediate layer with optimized thickness (1 nm Al and 15 nm MoO3) has high transparency (similar to 98% in the range from 350 to 900 nm) and efficient charge collections to realize electric connection in series. For polymer-small molecule tandem cell, due to the summation (1.01V) of the open-circuit voltages of individual cells and a short-circuit current density of 6.05 mA/cm(2), a power conversion efficiency (PCE) of 2.82% was obtained under 100 mW/cm(2) illumination, which is larger than either of the individual cells. The PCE reached 3.88% when the tandem cell was illuminated under 300 mW/cm(2). Additionally, we applied Al/MoO3 intermediate layer to realize a solution-processed polymer tandem cell with a high PCE (2.23%). The thick MoO3 (15 nm) provides a complete protection of the prior-deposited polymer layer from dissolving during the top cell polymer coating. (c) 2008 American Institute of Physics.

引用

页数：3

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