Role of photoactive layer morphology in high fill factor all-polymer bulk heterojunction solar cells

被引：141

作者：

Fabiano, S. ^{[1
,3
]}

Chen, Z. ^{[2
]}

Vahedi, S. ^{[2
]}

Facchetti, A. ^{[2
]}

Pignataro, B. ^{[3
]}

Loi, M. A. ^{[1
]}

机构：

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

[2] Polyera Corp, Skokie, IL 60077 USA

[3] Univ Palermo, Dipartimento Chim S Cannizzaro, I-90128 Palermo, Italy

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2011年 / 21卷 / 16期

关键词：

OPEN-CIRCUIT VOLTAGE; LIGHT-INTENSITY DEPENDENCE; PHOTOVOLTAIC DEVICES; CONJUGATED POLYMERS; BLENDS; POLY(3-HEXYLTHIOPHENE); TRANSISTORS; ORIGIN; TRANSPORT; DYNAMICS;

D O I：

10.1039/c0jm03405c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report on the realization of all-polymer solar cells based on blends of poly(3-hexylthiophene-2,5-diyl) (P3HT) as a donor and poly{[N,N'-bis(2-octyldodecyl)-naphthalene-1,4,5,8-bis(dicarboximide)-2,6-diyl]-alt-5,5'-(2,2'-bithiophene)} (P(NDI2OD-T2)) as an acceptor. High fill factors are demonstrated for the first time in this class of devices suggesting high dissociation efficiency for the bounded electron-hole pairs and balanced electron and hole mobility along the thin films. The use of the high-mobility n-type P(NDI2OD-T2) polymer enables us to overcome one of the problems limiting the efficiency of all-polymer solar cells, resulting in fill factors comparable with those reported for fullerene-based devices.

引用

页码：5891 / 5896

页数：6

共 43 条

[41] The Energy of Charge-Transfer States in Electron Donor-Acceptor Blends: Insight into the Energy Losses in Organic Solar Cells [J].