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

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