Ultrasonic-assisted synthesis of poly(3-hexylthiophene)/TiO2 nanocomposite and its photovoltaic characteristics

被引：6

作者：

Feng, W ^{[1
]}

Feng, YY ^{[1
]}

Wu, ZG ^{[1
]}

机构：

[1] Tianjin Univ, Dept Polymer Mat Sci & Engn, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2005年 / 44卷 / 10期

关键词：

conducting polymer composites; poly(3-hexylthiophene); titanium oxide (TiO2); nanocomposites; photoconductivity;

D O I：

10.1143/JJAP.44.7494

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The nanocomposites of poly(3-hexylthiophene) (PAT6) encapsulating titanium oxide (TiO2) with different TiO2 weight fractions were synthesized by it? situ ultrasonic-assisted polymerization, and investigated in terms of their optical properties, microstructures and photoconductivity. The interactic'n between PAT6 and TiO2 and the nature of chain growth were investigated and explained according to the results of Fourier transform infrared spectroscopy (FTIR). The increase in conjugation length of the polymer and the improvement of crystallinity with an increase in TiO2 weight fraction were investigated and explained according to the results of UV-vis absorption spectroscopy, photoluminescence spectroscopy and X-ray diffractometry (XRD). Particle dimensions were measured and the nature of association between the components was observed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) techniques.. The photoconductivity of the PAT6/TiO2 composite increased markedly and was discussed by taking the photoinduced charge transfer between PAT6 and TiO2 into consideration.

引用

页码：7494 / 7499

页数：6

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