Effect of annealing temperature on surface morphology and work function of ZnO nanorod arrays

被引：35

作者：

Wu, Hainan ^{[1
]}

Xue, Mingshan ^{[1
]}

Ou, Junfei ^{[1
,2
]}

Wang, Fajun ^{[1
]}

Li, Wen ^{[1
]}

机构：

[1] Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Peoples R China

[2] Changzhou Univ, Jiangsu Key Lab Solar Cell Mat & Technol, Changzhou 213164, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 565卷

关键词：

ZnO; Nanorod arrays; Work function; Annealing temperature; SENSITIZED SOLAR-CELLS; SCANNING KELVIN PROBE; THIN-FILMS; GROWTH; NANOSTRUCTURES; DEPENDENCE; SUBSTRATE; BEHAVIOR; ROUTE;

D O I：

10.1016/j.jallcom.2013.02.172

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：

A simple and effective method of fabricating nanomaterials and the understanding of their electronic structures are significant for designing novel nanodevices. In this study, ZnO nanorod arrays on ITO substrate were synthesized by electrochemical deposition, and the effect of annealing temperature on surface morphology and especially work function was investigated using various techniques. The results indicated that the formation of hexagonal ZnO nanorod arrays with (0001) orientation was strongly associated with the annealing temperature. The work function of well-aligned ZnO nanorod arrays is 4.84 eV, which shows an obvious dependence on the arrangement of ZnO nanorod arrays. These changes in work function of ZnO nanorod arrays (e.g., used as the photoanode of dye-sensitized solar cells) are important to understand the electron transport of related nanodevices. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：85 / 89

页数：5

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