Ultra violet sensors based on nanostructured ZnO spheres in network of nanowires: a novel approach

被引：68

作者：

Hullavarad, S. S. ^{[1
]}

Hullavarad, N. V. ^{[1
]}

Karulkar, P. C. ^{[1
]}

Luykx, A. ^{[2
]}

Valdivia, P. ^{[2
]}

机构：

[1] Univ Alaska, Off Elect Miniaturizat, Fairbanks, AK 99701 USA

[2] Univ Maryland, Ctr Superconduct Res, College Pk, MD 20742 USA

来源：

NANOSCALE RESEARCH LETTERS | 2007年 / 2卷 / 03期

关键词：

UV sensor; nano structures; microspheres; nanowire network; rise/decay time; photoresponse; photoluminescence;

D O I：

10.1007/s11671-007-9048-6

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The ZnO nanostructures consisting of micro spheres in a network of nano wires were synthesized by direct vapor phase method. X-ray Photoelectron Spectroscopy measurements were carried out to understand the chemical nature of the sample. ZnO nanostructures exhibited band edge luminescence at 383 nm. The nanostructure based ZnO thin films were used to fabricate UV sensors. The photoresponse measurements were carried out and the responsivity was measured to be 50 mA W-1. The rise and decay time measurements were also measured.

引用

页码：161 / 167

页数：7

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