Crossed zinc oxide nanorods for ultraviolet radiation detection

被引:127
作者
Chai, Guangyu [2 ]
Lupan, Oleg [1 ,3 ]
Chow, Lee [1 ]
Heinrich, Helge [1 ,4 ,5 ]
机构
[1] Univ Cent Florida, Dept Phys, Orlando, FL 32816 USA
[2] Apollo Technol Inc, Lake Mary, FL 32746 USA
[3] Tech Univ Moldova, Dept Microelect & Semicond Devices, MD-2004 Kishinev, Moldova
[4] Univ Cent Florida, Adv Mat Proc & Anal Ctr, Orlando, FL 32816 USA
[5] Univ Cent Florida, Dept Mech Mat & Aerosp Engn, Orlando, FL 32816 USA
关键词
Crossed zinc oxide nanorods; Photosensor; Self-assembly; Ultraviolet; ZNO; FABRICATION; PHOTODETECTORS; ARRAYS;
D O I
10.1016/j.sna.2008.12.020
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
An ultraviolet photosensor has been successfully constructed by the in situ lift-out method in a focused ion beam system. The prototype consists of individual naturally self-assembled crossed ZnO nanorods grown by an aqueous solution process. The current-voltage (I-V) characteristics show linear behavior. The photosensor exhibits a response of similar to 15 mA/W for UV light (361 nm) under 1V bias. Response measurements showed that such a photosensor is suitable for low levels of ultraviolet detection. The method is simple, rapid and applicable to research prototypes for further studies of crossed ZnO nanorods for nano-device applications. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:184 / 187
页数:4
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