ZnO nanorods grown on ZnO sol-gel seed films: Characteristics and optical gas-sensing properties

被引：40

作者：

Cittadini, M. ^{[1
]}

Sturaro, M. ^{[1
]}

Guglielmi, M. ^{[1
]}

Resmini, A. ^{[2
]}

Tredici, I. G. ^{[2
]}

Anselmi-Tamburini, U. ^{[2
]}

Koshy, P. ^{[3
]}

Sorrell, C. C. ^{[3
]}

Martucci, A. ^{[1
]}

机构：

[1] Univ Padua, Dipartimento Ingn Ind, I-35131 Padua, Italy

[2] Univ Pavia, Dipartimento Chim, I-27100 Pavia, Italy

[3] UNSW Australia, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2015年 / 213卷

关键词：

ZnO sol-gel films; ZnO nanorods; Pt nanoparticles; Optical gas sensors; THIN-FILMS; CATALYTIC-OXIDATION; HYDROGEN; OXIDE; SENSOR; NANOPARTICLES; TRANSISTORS; AU;

D O I：

10.1016/j.snb.2015.03.002

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

ZnO sol-gel films, with and without embedded Pt nanoparticles, were used as seeding layers for the hydrothermal growth of ZnO nanorods. The morphology of the nanorods was controlled by adjusting the chemistry and processing, yielding samples with high transparencies and exposed surface areas. The prepared samples were assessed for performance as optical gas sensors in terms of absorbance variation and response time and these data were correlated with the structural properties. The nanorods grown on ZnO films containing Pt nanoparticles showed excellent H-2-sensing properties owing to the high exposed surface areas of the ZnO nanorods and to the catalytic effect the underlying Pt nanoparticles. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：493 / 500

页数：8

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