Enhanced photovoltaic cells efficiency via incorporation of high electron-deficient oxadiazole moieties on side chains of poly(phenylene vinylene)s and poly(fluorene)s

被引：14

作者：

Huang, Szu-Po ^{[1
]}

Liao, Jin-Long ^{[1
]}

Tseng, Hao-En ^{[1
]}

Jen, Tzu-Hao ^{[1
]}

Liou, Jing-Yang ^{[1
]}

Chen, Show-An ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Dept Chem Engn, Hsinchu 30013, Taiwan

来源：

SYNTHETIC METALS | 2006年 / 156卷 / 14-15期

关键词：

oxadiazole; electron transport; photovoltaic cells; charge mobility; photoluminescence lifetime;

D O I：

10.1016/j.synthmet.2006.06.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High charge mobility and fast exciton dissociation rate are essential for photovoltaic cells. In this study, we demonstrate effects of the electron-deficient oxadiazole (OXD) moiety attached on the side chain on the efficiency of photovoltaic cells for poly(phenylene vinylene)s (PPVs) and poly(fluorene)s (PFs) as the active layer by luminescence decay and time of flight measurement (TOF). We find that OXD moiety can increase exciton dissociation rate and promote electron transport. Therefore, the efficiencies of incident photon converting to electron of the OXD-attached polymers, POPD-MEH-PPV(37/63) and OXD50PFO, are higher than those of MEH-PPV and PFO by factors of 2.1 and 29, respectively. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：949 / 953

页数：5

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