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
相关论文
共 21 条
[1]   ZnO microtube ultraviolet detectors [J].
Cheng, Jiping ;
Zhang, Yunjin ;
Guo, Ruyan .
JOURNAL OF CRYSTAL GROWTH, 2008, 310 (01) :57-61
[2]   Self-assembled nanowire-nanoribbon junction arrays of ZnO [J].
Gao, PX ;
Wang, ZL .
JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (49) :12653-12658
[3]   Synthesis and properties of multipod-shaped ZnO nanorods for gas-sensor applications [J].
Gao, T ;
Wang, TH .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2005, 80 (07) :1451-1454
[4]   Enhancing UV photoconductivity of ZnO nanobelt by polyacrylonitrile functionalization [J].
He, J. H. ;
Lin, Yen H. ;
McConney, Michael E. ;
Tsukruk, Vladimir V. ;
Wang, Zhong L. ;
Bao, Gang .
JOURNAL OF APPLIED PHYSICS, 2007, 102 (08)
[5]   A direct measurement of the local resistances in a ZnO tetrapod by means of impedance spectroscopy: The role of the junction in the overall resistance [J].
Huh, Junghwan ;
Kim, Gyu-Tae ;
Lee, Jong Soo ;
Kim, Sangtae .
APPLIED PHYSICS LETTERS, 2008, 93 (04)
[6]  
Kind H, 2002, ADV MATER, V14, P158, DOI 10.1002/1521-4095(20020116)14:2<158::AID-ADMA158>3.0.CO
[7]  
2-W
[8]   Fabrication and characterization of ZnO nanowires based UV photodiodes [J].
Luo, L ;
Zhang, YF ;
Mao, SS ;
Lin, LW .
SENSORS AND ACTUATORS A-PHYSICAL, 2006, 127 (02) :201-206
[9]   Nanofabrication and characterization of ZnO nanorod arrays and branched microrods by aqueous solution route and rapid thermal processing [J].
Lupan, Oleg ;
Chow, Lee ;
Chai, Guangyu ;
Roldan Cuenya, Beatriz ;
Naitabdi, Ahmed ;
Schulte, Alfons ;
Heinrich, Helge .
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2007, 145 (1-3) :57-66
[10]   Fabrication of ZnO nanorod-based hydrogen gas nanosensor [J].
Lupan, Oleg ;
Chai, Guangyu ;
Chow, Lee .
MICROELECTRONICS JOURNAL, 2007, 38 (12) :1211-1216