High sensitivity and fast response and recovery times in a ZnO nanorod array/p-Si self-powered ultraviolet detector

被引：100

作者：

Hassan, J. J. ^{[1
,2
]}

Mahdi, M. A. ^{[1
,2
]}

Kasim, S. J. ^{[2
]}

Ahmed, Naser M. ^{[1
]}

Abu Hassan, H. ^{[1
]}

Hassan, Z. ^{[1
]}

机构：

[1] Univ Sains Malaysia, Nanooptoelect Res & Technol Lab NOR, Sch Phys, George Town 11800, Malaysia

[2] Univ Basrah, Coll Sci, Dept Phys, Basrah, Iraq

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 26期

关键词：

CHEMICAL BATH DEPOSITION; OPTICAL-PROPERTIES; THIN-FILMS; FABRICATION;

D O I：

10.1063/1.4773245

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High quality, vertically aligned ZnO nanorods were grown on a silicon substrate, using microwave-assisted chemical bath deposition with poly (vinyl alcohol)-Zn(OH)(2) nanocomposites as seed layer. The structure and surface morphology of the prepared ZnO nanorod arrays were characterized using X-ray diffraction and scanning electron microscopy. The optical properties were assessed using photoluminescence measurements; the results showed a high-intensity UV peak, and a lower intensity, broader visible peak. Upon exposure to 395 nm light at a zero-bias voltage, the UV detector showed a high sensitivity of 8000% and fast response and recovery times of 25 and 22 ms, respectively. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4773245]

引用

页数：3

共 29 条

[1] Carrier relaxation through two-electron process during photoconduction in highly UV sensitive quasi-one-dimensional ZnO nanowires [J].

Bera, A. ;

Basak, D. .

APPLIED PHYSICS LETTERS, 2008, 93 (05)

[2] Thickness dependence of structural, electrical and optical behaviour of undoped ZnO thin films [J].

Bouderbala, M. ;

Hamzaoui, S. ;

Amrani, B. ;

Reshak, Ali H. ;

Adnane, M. ;

Sahraoui, T. ;

Zerdali, M. .

PHYSICA B-CONDENSED MATTER, 2008, 403 (18) :3326-3330

[3] From ZnO nanorods to nanoplates: Chemical bath deposition growth and surface-related emissions [J].

Cao, Bingqiang ;

Cai, Weiping .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (03) :680-685

[4] Ab-initio investigation of structural, electronic and optical properties for three phases of ZnO compound [J].

Charifi, Z. ;

Baaziz, H. ;

Reshak, Ali Hussain .

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2007, 244 (09) :3154-3167

[5] Electrically pumped ultraviolet ZnO diode lasers on Si [J].

Chu, Sheng ;

Olmedo, Mario ;

Yang, Zheng ;

Kong, Jieying ;

Liu, Jianlin .

APPLIED PHYSICS LETTERS, 2008, 93 (18)

[6] Synthesis and ultraviolet emission of aligned ZnO rod-on-rod nanostructures [J].

Fan, Donghua ;

Zhang, Rong ;

Wang, Xianghu .

SOLID STATE COMMUNICATIONS, 2010, 150 (17-18) :824-827

[7] Synthesis, characterization and optical properties of flower-like ZnO nanorods by non-catalytic thermal evaporation [J].

Feng, Libing ;

Liu, Aihua ;

Liu, Mei ;

Ma, Yuying ;

Wei, Jing ;

Man, Baoyuan .

JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 492 (1-2) :427-432

[8] Photoluminescence investigation of the carrier recombination processes in ZnO quantum dots and nanocrystals [J].

Fonoberov, VA ;

Alim, KA ;

Balandin, AA ;

Xiu, FX ;

Liu, JL .

PHYSICAL REVIEW B, 2006, 73 (16)

[9] Visible-blind ultra-violet detector based on n-ZnO/p-Si heterojunction fabricated by plasma-assisted pulsed laser deposition [J].

Gu, Y. F. ;

Li, X. M. ;

Zhao, J. L. ;

Yu, W. D. ;

Gao, X. D. ;

Yang, C. .

SOLID STATE COMMUNICATIONS, 2007, 143 (8-9) :421-424

[10] Fabrication and characterization of ZnO nanorods/p-6H-SiC heterojunction LED by microwave-assisted chemical bath deposition [J].

Hassan, J. J. ;

Mandi, M. A. ;

Ramizy, Asmiet ;

Abu Hassan, H. ;

Hassan, Z. .

SUPERLATTICES AND MICROSTRUCTURES, 2013, 53 :31-38

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