TiO2 nanotubes with a ZnO thin energy barrier for improved current efficiency of CdSe quantum-dot-sensitized solar cells

被引：44

作者：

Lee, Wonjoo ^{[2
]}

Kang, Soon Hyung ^{[3
]}

Kim, Jae-Yup ^{[1
]}

Kolekar, Govind B. ^{[2
,4
]}

Sung, Yung-Eun ^{[1
]}

Han, Sung-Hwan ^{[2
]}

机构：

[1] Seoul Natl Univ, Sch Chem & Biol Engn, Seoul 151742, South Korea

[2] Hanyang Univ, Dept Chem, Seoul 133791, South Korea

[3] Natl Renewable Energy Lab, Golden, CO 80401 USA

[4] Shivaji Univ, Dept Chem, Kolhapur 416004, Maharashtra, India

来源：

NANOTECHNOLOGY | 2009年 / 20卷 / 33期

关键词：

CONVERSION EFFICIENCY; ELECTRON INJECTION; PERFORMANCE; ARRAYS; FILMS; NANOPARTICLES; NANOCRYSTALS; ENHANCEMENT; FABRICATION; DEVICES;

D O I：

10.1088/0957-4484/20/33/335706

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper reports the formation of a thin ZnO energy barrier between a CdSe quantum dot (Q dots) sensitizer and TiO2 nanotubes (TONTs) for improved current efficiency of Q dot-sensitized solar cells. The formation of a ZnO barrier between TONTs and the Q dot sensitizer increased the short-circuit current under illumination and also reduced the dark current in a dark environment. The power conversion efficiency of Q dot-sensitized TONT solar cells increased by 25.9% in the presence of the ZnO thin layer due to improved charge-collecting efficiency and reduced recombination.

引用

页数：7

共 46 条

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