ZnO microtube ultraviolet detectors

被引:144
作者
Cheng, Jiping [1 ]
Zhang, Yunjin [1 ]
Guo, Ruyan [1 ]
机构
[1] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA
基金
美国国家科学基金会;
关键词
microtubes; ZnO; UV photodetector;
D O I
10.1016/j.jcrysgro.2007.08.034
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
ZnO stands a good chance of being a candidate material for solar-blind UV detection because of its direct band-gap of 3.37eV and high photoresponse. In this work, we present the UV photodetection properties of ZnO single crystal microtubes synthesized using a microwave-heating growth method. The ZnO microtubes exhibited relatively fast UV photoresponse with a cut-off wavelength similar to 370 nm, indicating their potential application as UV detectors with high efficiency and low cost. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:57 / 61
页数:5
相关论文
共 13 条
[1]   Photoconductive UV detectors on sol-gel-synthesized ZnO films [J].
Basak, D ;
Amin, G ;
Mallik, B ;
Paul, GK ;
Sen, SK .
JOURNAL OF CRYSTAL GROWTH, 2003, 256 (1-2) :73-77
[2]   Zinc oxide single-crystal microtubes [J].
Cheng, JP ;
Guo, RY ;
Wang, QM .
APPLIED PHYSICS LETTERS, 2004, 85 (22) :5140-5142
[3]   STM study of the geometric and electronic structure of ZnO(0001)-Zn, (000(1)over-bar)-O, (10(1)over-bar0), and (11(2)over-bar0) surfaces [J].
Dulub, O ;
Boatner, LA ;
Diebold, U .
SURFACE SCIENCE, 2002, 519 (03) :201-217
[4]   ZnO Schottky ultraviolet photodetectors [J].
Liang, S ;
Sheng, H ;
Liu, Y ;
Huo, Z ;
Lu, Y ;
Shen, H .
JOURNAL OF CRYSTAL GROWTH, 2001, 225 (2-4) :110-113
[5]   Ultraviolet detection with ultrathin ZnO epitaxial films treated with oxygen plasma [J].
Liu, MJ ;
Kim, HK .
APPLIED PHYSICS LETTERS, 2004, 84 (02) :173-175
[6]   Ultraviolet detectors based on epitaxial ZnO films grown by MOCVD [J].
Liu, Y ;
Gorla, CR ;
Liang, S ;
Emanetoglu, N ;
Lu, Y ;
Shen, H ;
Wraback, M .
JOURNAL OF ELECTRONIC MATERIALS, 2000, 29 (01) :69-74
[7]   Wide-bandgap semiconductor ultraviolet photodetectors [J].
Monroy, E ;
Omnès, F ;
Calle, F .
SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 2003, 18 (04) :R33-R51
[9]   Semiconductor ultraviolet detectors [J].
Razeghi, M ;
Rogalski, A .
JOURNAL OF APPLIED PHYSICS, 1996, 79 (10) :7433-7473
[10]   Quantitative evaluation of chemisorption processes on semiconductors [J].
Rothschild, A ;
Komem, Y ;
Ashkenasy, N .
JOURNAL OF APPLIED PHYSICS, 2002, 92 (12) :7090-7097