Solution-processed bulk heterojunction photovoltaic devices based on poly(2-methoxy,5-octoxy)-1,4-phenylenevinylene-multiwalled carbon nanotubes/PbSe quantum dots bilayer

被引：9

作者：

Feng, Yiyu ^{[1
]}

Yun, Daqin ^{[2
]}

Zhang, Xuequan ^{[1
]}

Feng, Wei ^{[1
]}

机构：

[1] Tianjin Univ, Sch Mat Sci & Engn, Tianjin Key Lab Composite & Funct Mat, Tianjin 300072, Peoples R China

[2] Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Xian 710049, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 09期

基金：

中国国家自然科学基金;

关键词：

aluminium; carbon nanotubes; carrier mobility; charge exchange; dissociation; excitons; indium compounds; IV-VI semiconductors; lead compounds; organic compounds; photoconductivity; photoemission; photoluminescence; photovoltaic cells; semiconductor heterojunctions; semiconductor quantum dots; spectral line shift; surface morphology; SOLAR-CELLS; FUNCTIONALIZATION; EFFICIENT;

D O I：

10.1063/1.3337100

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A solution-processed bulk heterojuction photovoltaic cell was fabricated based on poly[(2-methoxy,5-octoxy)-1,4-phenylenevinylene](MOPPV)-multiwalled carbon nanotubes (MWNT)/spherical PbSe quantum dots bilayer. Surface morphology shows the interpenetrating network of well-dispersed MWNT in MOPPV matrix. Blueshifted band in absorption and photoluminescence spectra indicate the strong electron interaction between MWNT and MOPPV. A marked twofold increase in short-circuit current (1.71 mA/cm(2)) and power-conversion efficiency (0.40%) of ITO/MOPPV-MWNT:phenyl-C61-butyric acid methyl ester (PCBM)/PbSe/Al devices was achieved compared with that without MWNT. Results indicate that the enhanced performance was contributed by high photocurrent due to efficient exciton dissociation, charge transfer, and mobility in MWNT pathway.

引用

页数：3

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