Photo-induced charge recombination kinetics in low bandgap PCPDTBT polymer:CdSe quantum dot bulk heterojunction solar cells

被引：26

作者：

Albero, Josep ^{[1
]}

Zhou, Yunfei ^{[2
]}

Eck, Michael ^{[2
]}

Rauscher, Frank ^{[4
]}

Niyamakom, Phenwisa ^{[4
]}

Dumsch, Ines ^{[5
]}

Allard, Sybille ^{[5
]}

Scherf, Ullrich ^{[5
]}

Krueger, Michael ^{[2
]}

Palomares, Emilio ^{[1
,3
]}

机构：

[1] Inst Chem Res Catalonia ICIQ, E-43007 Tarragona, Spain

[2] Univ Freiburg, Freiburg Mat Res Ctr FMF, D-79104 Freiburg, Germany

[3] Catalan Inst Res & Adv Studies ICREA, E-08010 Barcelona, Spain

[4] Bayer Technol Serv GmbH, D-51368 Leverkusen, Germany

[5] Berg Univ Wuppertal, Inst Polymertechnol, D-42097 Wuppertal, Germany

来源：

CHEMICAL SCIENCE | 2011年 / 2卷 / 12期

基金：

欧洲研究理事会;

关键词：

ELECTRON-TRANSFER; POLYMER/FULLERENE; PHOTOCURRENT; PERFORMANCE; ORIGIN; SHIFTS; FILMS;

D O I：

10.1039/c1sc00514f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The interfacial charge transfer recombination processes under working conditions that limit the device performance in polymer:CdSe quantum dot bulk heterojunction hybrid solar cells have been measured. The recombination lifetimes for electrons and holes in the device show an exponential dependence in a similar way to that observed for other molecular based solar cells such as bulk heterojunction organic solar cells (OSC) and dye sensitized solar cells (DSSC). The implications of this unprecedented observation on the design of novel devices are discussed as well as the relationship between the charge accumulation in these devices under operation and the device open-circuit voltage.

引用

页码：2396 / 2401

页数：6

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