Semiconducting Conjugated Polymer-Inorganic Tetrapod Nanocomposites

被引：35

作者：

Jung, Jaehan ^{[1
]}

Pang, Xinchang ^{[1
]}

Feng, Chaowei ^{[1
]}

Lin, Zhiqun ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

来源：

LANGMUIR | 2013年 / 29卷 / 25期

关键词：

INTIMATE CONTACT; NANOCRYSTALS; POLY(3-ALKYLTHIOPHENES); EFFICIENCY; DEVICES; CDS;

D O I：

10.1021/la400925y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cadmium telluride (CdTe) tetrapods were synthesized via multiple injections of the Te precursor by utilizing bifunctional ligands. Subsequently, tetrapod-shaped semiconducting inorganic-organic nanocomposites (i.e., P3HT-CdTe tetrapod nanocomposites) were produced by directly grafting conjugated polymer ethynyl-terminated poly(3-hexylthiophene) (i.e., P3HT-) onto azide-functionalized CdTe tetrapods (i.e., CdTe-N-3) via a catalyst-free click chemistry. The intimate contact between P3HT and CdTe tetrapod rendered the effective dispersion of CdTe tetrapods in nanocomposites and facilitated their efficient electronic interaction. The success of coupling reaction was confirmed by Fourier transform infrared spectroscopy and nuclear magnetic resonance spectroscopy. The grafting density of P3HT chains on the CdTe tetrapods was estimated by thermogravimetric analysis. The photophysical properties of P3HT-CdTe tetrapod nanocomposites were studied using UV-vis and photoluminescence spectroscopies. These intimate semiconducting conjugated polymer-tetrapod nanocomposites may offer a maximized interface between conjugated polymers and tetrapods for efficient charge separation and enhanced charge transport regardless of their orientation for potential application in hybrid solar cells with improved power conversion efficiency.

引用

页码：8086 / 8092

页数：7

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