Origin of the efficiency improvement in all-polymer solar cells upon annealing

被引：44

作者：

Mandoc, M. M.

Veurman, W.

Sweelssen, J.

Koetse, M. M.

Blom, P. W. M. ^{[1
]}

机构：

[1] Univ Groningen, Zernike Inst Adv Mat, NL-9747 AG Groningen, Netherlands

[2] Univ Groningen, Dutch Polymer Inst, NL-9747 AG Groningen, Netherlands

[3] TNO, Holst Ctr, NL-5605 KN Eindhoven, Netherlands

[4] Dutch Polymer Inst, NL-5605 KN Eindhoven, Netherlands

来源：

APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 07期

关键词：

13;

D O I：

10.1063/1.2772185

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The origin of the enhanced efficiency upon annealing in solar cells based on blends of poly[2-methoxy-5-(3',7'-dimethyloctyloxy)-1,4-phenylene vinylene] and poly{9,9-dioctylfluorene-2,7-diyl-alt-1,4-bis[2-(5-thienyl)-1-cyanovinyl]-2-methoxy-5-(3,7-dimethyl-octyloxy)benzene} is investigated. Current-voltage measurements on solar cells and single-carrier diodes reveal that the electron and hole transport is not improved for thermally treated devices. From the analysis of the photocurrent, the authors show that the dissociation efficiency of the bound electron-hole pairs increases upon annealing, due to an increase of the initial electron-hole separation distance. (C) 2007 American Institute of Physics.

引用

页数：3

共 13 条

[1] ELECTRIC-FIELD ASSISTED DISSOCIATION OF CHARGE-TRANSFER STATES AS A MECHANISM OF PHOTOCARRIER PRODUCTION [J].