ZnO-ZnS Heterojunction and ZnS Nanowire Arrays for Electricity Generation

被引：244

作者：

Lu, Ming-Yen ^{[1
,2
]}

Song, Jinhui ^{[2
]}

Lu, Ming-Pei ^{[3
]}

Lee, Chung-Yang ^{[1
]}

Chen, Lih-Juann ^{[1
]}

Wang, Zhong Lin ^{[2
]}

机构：

[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30043, Taiwan

[2] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

[3] Natl Nano Device Labs, Hsinchu 30078, Taiwan

来源：

ACS NANO | 2009年 / 3卷 / 02期

关键词：

ZnO-ZnS nanowire arrays; heterojunction; ZnS nanowire arrays; piezoelectric properties; cathodoluminescence; OPTICAL-PROPERTIES; HETEROSTRUCTURES; NANOGENERATORS; LUMINESCENCE; GROWTH;

D O I：

10.1021/nn800804r

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Vertically aligned ZnO-ZnS heterojunction nanowire (NW) arrays were synthesized by thermal evaporation in a tube furnace under controlled conditions. Both ZnO and ZnS are of wurtzite structure, and the axial heterojunctions are formed by epitaxial growth of ZnO on ZnS with an orientation relationship of [0001](ZnO)//[0001](ZnS). Vertical ZnS NW arrays have been obtained by selectively etching ZnO-ZnS NW arrays. Cathodoluminescence measurements of ZnO-ZnS NW arrays and ZnS NW arrays show emissions at 509 and 547 nm, respectively. Both types of aligned NW arrays have been applied to convert mechanical energy into electricity when they are deflected by a conductive AFM tip in contact mode. The received results are explained by the mechanism proposed for nanogenerator.

引用

页码：357 / 362

页数：6

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