Metal-Semiconductor-Metal Ultraviolet Photodetectors Based on Zinc-Oxide Colloidal Nanoparticles

被引:23
作者
Qin, Liqiao [1 ]
Shing, Christopher [1 ]
Sawyer, Shayla [1 ]
机构
[1] Rensselaer Polytech Inst, Dept Elect Comp & Syst Engn, Troy, NY 12180 USA
关键词
Metal-semiconductor-metal (MSM) ultraviolet (UV) photodetector; optical lithography; polyvinyl-alcohol (PVA); top-down wet-chemical etching; zinc-oxide (ZnO) nanoparticles;
D O I
10.1109/LED.2010.2089598
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
Metal-semiconductor-metal ultraviolet (UV) photodetectors were created with zinc-oxide colloidal nanoparticles coated with polyvinyl-alcohol. Gold-interdigitated finger contacts with different parameters were patterned on the nanoparticles by optical lithography. The photodetectors exhibited UV-photogenerated current to dark current ratios ranging from 3.85 x 10(6) to 1.34 x 10(8), depending on the finger parameters. The spectral responses demonstrate a 375 nm cutoff wavelength, with a peak responsivity of 731.42 A/W at 345 nm.
引用
收藏
页码:51 / 53
页数:3
相关论文
共 9 条
[1]   Ultraviolet photodetectors based on ZnO nanoparticles [J].
Jun, Jin Hyung ;
Seong, Hojun ;
Cho, Kyoungah ;
Moon, Byung-Moo ;
Kim, Sangsig .
CERAMICS INTERNATIONAL, 2009, 35 (07) :2797-2801
[2]   Solution-processed ZnO nanoparticle-based semiconductor oxide thin-film transistors [J].
Lee, Sul ;
Jeong, Youngmin ;
Jeong, Sunho ;
Lee, Jisu ;
Jeon, Minhyon ;
Moon, Jooho .
SUPERLATTICES AND MICROSTRUCTURES, 2008, 44 (06) :761-769
[3]   Time response analysis of ZnSe-based Schottky barrier photodetectors [J].
Monroy, E ;
Vigué, F ;
Calle, F ;
Izpura, JI ;
Muñoz, E ;
Faurie, JP .
APPLIED PHYSICS LETTERS, 2000, 77 (17) :2761-2763
[4]   All-inorganic light emitting device based on ZnO nanoparticles [J].
Neshataeva, E. ;
Kuemmell, T. ;
Bacher, G. ;
Ebbers, A. .
APPLIED PHYSICS LETTERS, 2009, 94 (09)
[5]   Enhanced ultraviolet sensitivity of zinc oxide nanoparticle photoconductors by surface passivation [J].
Qin, Liqiao ;
Shing, Christopher ;
Sawyer, Shayla ;
Dutta, Partha S. .
OPTICAL MATERIALS, 2011, 33 (03) :359-362
[6]   ZnO nanowire UV photodetectors with high internal gain [J].
Soci, C. ;
Zhang, A. ;
Xiang, B. ;
Dayeh, S. A. ;
Aplin, D. P. R. ;
Park, J. ;
Bao, X. Y. ;
Lo, Y. H. ;
Wang, D. .
NANO LETTERS, 2007, 7 (04) :1003-1009
[7]   PPV/PVA/ZnO nanocomposite prepared by complex precursor method and its photovoltaic application [J].
Wang, Mingqing ;
Lian, Yanqing ;
Wang, Xiaogong .
CURRENT APPLIED PHYSICS, 2009, 9 (01) :189-194
[8]   Synthesis of ZnO nanorod and the annealing effect on its photoluuminescence property [J].
Wu, LL ;
Wu, YS ;
Pan, XR ;
Kong, FY .
OPTICAL MATERIALS, 2006, 28 (04) :418-422
[9]   Surface modification of ZnO nanocrystals [J].
Wu, Y. L. ;
Tok, A. I. Y. ;
Boey, F. Y. C. ;
Zeng, X. T. ;
Zhang, X. H. .
APPLIED SURFACE SCIENCE, 2007, 253 (12) :5473-5479