High performance polymeric charge recombination layer for organic tandem solar cells

被引：185

作者：

Zhou, Yinhua ^{[1
]}

Fuentes-Hernandez, Canek ^{[1
]}

Shim, Jae Won ^{[1
]}

Khan, Talha M. ^{[1
]}

Kippelen, Bernard ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Elect & Comp Engn, Ctr Organ Photon & Elect COPE, Atlanta, GA 30332 USA

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2012年 / 5卷 / 12期

基金：

美国国家科学基金会;

关键词：

WORK FUNCTION; EFFICIENCY; ELECTRODES;

D O I：

10.1039/c2ee23294d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report on inverted polymer tandem solar cells wherein the conducting polymer poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), modified at one interface with ethoxylated polyethylenimine (PEIE), acts as an efficient charge recombination layer. This recombination layer shows very low optical absorption, high electrical conductivity, and a large work function contrast of 1.3 eV between its top and bottom interfaces. Its use yields tandem cells in which the open-circuit voltage is the sum of that of individual cells. The fill factor of tandem cells connected in series is found to be larger than that of single-junction cells. Its simple polymeric composition and its unprecedented performance make it a promising component for emerging organic photovoltaic technologies.

引用

页码：9827 / 9832

页数：6

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