UV photovoltaic cells based on conjugated ZnO quantum dot/multiwalled carbon nanotube heterostructures

被引：51

作者：

Li, Fushan ^{[1
]}

Cho, Sung Hwan ^{[1
]}

Son, Dong Ick ^{[1
]}

Kim, Tae Whan ^{[1
]}

Lee, Sun-Kyun ^{[2
]}

Cho, Yong-Hoon ^{[2
]}

Jin, Sungho ^{[3
]}

机构：

[1] Hanyang Univ, Natl Res Lab Nano Quantum Elect, Div Elect & Comp Engn, Seoul 133791, South Korea

[2] Korea Adv Inst Sci & Technol, Dept Phys, Natl Res Lab Nanobio Photon, Taejon 305701, South Korea

[3] Univ Calif San Diego, Dept Mat Sci & Engn, La Jolla, CA 92093 USA

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 11期

关键词：

carbon nanotubes; charge exchange; electrodes; II-VI semiconductors; photochemistry; photoluminescence; semiconductor growth; semiconductor quantum dots; semiconductor-insulator boundaries; solar cells; wide band gap semiconductors; zinc compounds; POLYMER SOLAR-CELLS; NANOPARTICLES; DEVICES; DIODES;

D O I：

10.1063/1.3098400

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In situ growth of ZnO quantum dots (QDs) on the surface of multiwalled carbon nanotubes (MWCNTs) was realized via a mild solution-process method, which resulted in an improvement in photoinduced charge separation and transport of carriers to the collecting electrode. The charge transfer efficiency was significantly increased by more than 90% due to the conjugation of ZnO QDs with MWCNTs, as confirmed by photoluminescence measurements. Ultraviolet photovoltaic cells based on the charge transfer at the ZnO QD-MWCNT heterostructures were fabricated, and their power conversion efficiency was measured to be above 1%.

引用

页数：3

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