Insights into π-Conjugated Small Molecule Neat Films and Blends As Determined Through Photoconductivity

被引：32

作者：

Jasieniak, Jacek J. ^{[1
,3
]}

Hsu, Ben B. Y. ^{[1
]}

Takacs, Christopher J. ^{[1
]}

Welch, Gregory C. ^{[2
]}

Bazan, Guillermo C. ^{[2
]}

Moses, Daniel ^{[1
]}

Heeger, Alan J. ^{[1
]}

机构：

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

[2] Univ Calif Santa Barbara, Dept Chem, Santa Barbara, CA 93106 USA

[3] CSIRO Mat Sci & Engn, Clayton, Vic 3168, Australia

来源：

ACS NANO | 2012年 / 6卷 / 10期

基金：

美国国家科学基金会; 澳大利亚研究理事会;

关键词：

small molecule; fullerene; photoconductivity; bulk heterojunction; binding energy; additive; POLYMER PHOTOVOLTAIC CELLS; TRANSIENT PHOTOCONDUCTIVITY; OPTICAL-PROPERTIES; BINDING-ENERGY; SOLAR-CELLS; BAND-GAP; EFFICIENCY; EXCITONS; PHOTOGENERATION; MORPHOLOGY;

D O I：

10.1021/nn303724m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Spectrally dependent steady-state photoconductivity is a convenient method to gain Insight into the charge generation and transport processes within a given material. In this work, we report on the photoconductive response of solution-processed neat films and blends of the fullerene, PC71BM, and the donor-acceptor small-molecule, p-DTS(PTTh2)(2), as function of the processing additive, diiodooctance (DIO). The results, when considered in the context of their structural, optical, and electronic properties give insight into the dominant carrier generation and charge transport mechanisms in each of these molecular systems.

引用

页码：8735 / 8745

页数：11

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