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

被引：50

作者：

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

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

Ramizy, Asmiet ^{[3
]}

Abu Hassan, H. ^{[1
]}

Hassan, Z. ^{[1
]}

机构：

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

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

[3] Univ Anbar, Coll Sci, Dept Phys, Ramadi, Iraq

来源：

SUPERLATTICES AND MICROSTRUCTURES | 2013年 / 53卷

关键词：

ZnO nanorods; p-6H-SiC; Heterojunction LED; Epitaxial growth; Electroluminescent; SOLAR-CELLS; ZINC-OXIDE; NANORODS; GROWTH; FILMS; PHOTOLUMINESCENCE; OPTIMIZATION; SUBSTRATE; EMISSION;

D O I：

10.1016/j.spmi.2012.09.013

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

High-quality vertically aligned zinc oxide nanorods were successfully grown on p-type 6H-SiC substrate by microwave-assisted chemical bath deposition. The novel seed material poly(vinyl alcohol)-Zn(OH)(2) nanocomposites was used to seed the 6H-SiC substrate. X-ray diffraction analysis and field emission scanning electron microscopy showed that the synthesized ZnO nanorods were vertically well aligned in the direction of the (002) plane of the hexagonal structure. The optical properties were examined by photoluminescence spectroscopy, which showed a high-intensity UV peak compared with visible defect peaks. The current-voltage property proved the good rectifier characteristic of the n-type ZnO nanorod/p-type SiC diode heterojunction. The electroluminescence emission of the heterojunction LED was sufficiently high to be seen with the naked eye, with a broad peak centered at the green part of the visible spectrum. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：31 / 38

页数：8

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