Method for increasing the photoconductive response in conjugated polymer/fullerene composites

被引：234

作者：

Peet, J. ^{[1
]}

Soci, C. ^{[1
]}

Coffin, R. C. ^{[1
]}

Nguyen, T. Q. ^{[1
]}

Mikhailovsky, A. ^{[1
]}

Moses, D. ^{[1
]}

Bazan, G. C. ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Ctr Polymer & Organ Solids, Santa Barbara, CA 93106 USA

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 25期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2408661

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The authors poly(3-hexylthiophene)/[6,6]-phenyl C61-butyric acid methyl ester present a technique for modifying the internal structure of bulk heterojunction films which yields significantly improved photoconductivity. This method comprises the addition of alkyl thiol molecules to the polymer/fullerene solution prior to spin coating. Based on the steady-state and transient photoconductivity measurements, the photoresponsivity is an order of magnitude greater than that in films spun from pristine solvent; additionally, the carrier mobility measurements indicate significant increase in the hole mobility, consistent with the enhanced structural order inferred from x-ray diffraction and optical absorption measurements. (c) 2006 American Institute of Physics.

引用

页数：3

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