Semiconductor Conjugated Polymer-Quantum Dot Nanocomposites at the Air/Water Interface and Their Photovoltaic Performance

被引：67

作者：

Goodman, Matthew D. ^{[1
]}

Xu, Jun ^{[1
]}

Wang, Jun ^{[1
]}

Lin, Zhiqun ^{[1
]}

机构：

[1] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA

来源：

CHEMISTRY OF MATERIALS | 2009年 / 21卷 / 05期

基金：

美国国家科学基金会;

关键词：

BY-LAYER FILMS; SOLAR-CELLS; NANOCRYSTALS; MORPHOLOGY; PHOTOLUMINESCENCE; POLYTHIOPHENE; NANOPARTICLES; COMPOSITE;

D O I：

10.1021/cm803248j

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Organic-inorganic nanocomposites consisting of electroactive conjugated polymer, poly(3-hexylthiophene) (P3HT), intimately tethered on the surface of semiconductor CdSe quantum dot (i.e., P3HT-CdSe nanocomposites) at the air/water interface formed via Langmuir isotherms were explored for the first time. The P3HT-CdSe nanocomposites displayed a high pressure plateau (similar to 10.5 mN/m) in the Langmuir isotherm, illustrating their complex packing at the air/water interface. The packing of the Langmuir-Blodgett (LB) depositions of nanocomposites was revealed by AFM measurements. Furthermore, photovoltaic devices fabricated from the LB depositions of the P3HT-CdSe nanocomposites exhibited a relatively high short circuit current, I-sc, while maintaining a thin film profile. These studies provide insights into the fundamental behaviors of semiconductor organic-inorganic nanocomposites confined at the air/water interface as well as in the active layer of an organic-based photovoltaic device.

引用

页码：934 / 938

页数：5

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