Growth of three-dimensional ZnO nanorods by electrochemical method for quantum dots-sensitized solar cells

被引：27

作者：

Chen, Haining ^{[1
]}

Li, Weiping ^{[1
]}

Hou, Qin ^{[1
]}

Liu, Huicong ^{[1
]}

Zhu, Liqun ^{[1
]}

机构：

[1] Beihang Univ, Key Lab Aerosp Mat & Performance, Sch Mat Sci & Engn, Minist Educ, Beijing 100191, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2011年 / 56卷 / 24期

关键词：

ZnO; Nanorod; There-dimensional superstructure; Quantum dots-sensitized solar cell; CHEMICAL BATH DEPOSITION; NANOWIRE ARRAYS; CDS;

D O I：

10.1016/j.electacta.2011.07.014

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

There-dimensional (3D) superstructure was expected to fabricate high performance photoelectrodes of quantum dot-sensitized solar cells (QDSCs). In this paper, the ZnO 3D superstructure with multilayer structure (3D ZnO nanorods) was grown on ITO glass by a novel electrochemical method at low temperature (60-90 degrees C). The 3D ZnO nanorods were composed of close-packed ZnO nanorod bundles with wide dimension distribution ranging from hundreds of nanometers to several micrometers. The effects of some important parameters, such as concentration of Zn(NO(3))(2), deposition temperature and concentration of ZnO nanoparticles (served as growth seeds for ZnO nanorods), on the morphology of 3D ZnO nanorods were also studied by scanning electron microscopy. Once being applied in QDSCs, the 3D ZnO nanorods showed more superior photoelectrochemical performance to ZnO nanorod array. The conversion efficiency of 1.42% achieved by the QDSC based on 3D ZnO nanorods was a very promising value for the QDSCs based on ZnO electrodes. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：8358 / 8364

页数：7

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