High band gap poly(9,9-dihexylfluorene-alt-bithiophene) blended with [6,6]-phenyl C61 butyric acid methyl ester for use in efficient photovoltaic devices

被引：35

作者：

Schulz, Gisela L. ^{[1
]}

Chen, Xiwen ^{[1
]}

Holdcroft, Steven ^{[1
]}

机构：

[1] Simon Fraser Univ, Dept Chem, Burnaby, BC V5A 1S6, Canada

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

conducting polymers; energy gap; fullerene compounds; hole mobility; photovoltaic effects; polymer blends; polymer films; power conversion; segregation; POLYMER SOLAR-CELLS; BULK; COPOLYMER; MOBILITY; ENHANCEMENT; PERFORMANCE; TRANSPORT; THIOPHENE;

D O I：

10.1063/1.3070574

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This paper reports a study of a high band gap conjugated polymer poly(9,9-dihexylfluorene-alt-bithiophene) (F6T2) in an organic photovoltaic device. F6T2 blended with [6,6]-phenyl C-61 butyric acid methyl ester (1:4 weight ratio) produced films exhibiting phase segregated domains similar to 5 nm in size, and possessing a hole mobility of 3x10(-8) m(2)/V s. Open circuit voltages of photovoltaic devices were greater than 1 V, and power conversion efficiencies of 2.7% based on AM 1.5 G illumination were measured. External quantum efficiencies of up to 48 %, and internal quantum efficiencies of up to 87 % were calculated.

引用

页数：3

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