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

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• 作者：Jacek J. Jasieniak ; Ben B.Y. Hsu ; Christopher J. Takacs ; Gregory C. Welch ; Guillermo C. Bazan ; Daniel Moses ; Alan J. Heeger
• 刊名：ACS Nano
• 出版年：2012
• 出版时间：October 23, 2012
• 年：2012
• 卷：6
• 期：10
• 页码：8735-8745
• 全文大小：709K
• 年卷期：v.6,no.10(October 23, 2012)
• ISSN：1936-086X

文摘

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鈥揳cceptor 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.

Keywords:

small molecule; fullerene; photoconductivity; junction&qsSearchArea=searchText">bulk heterojunction; binding energy; additive