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Solution processed vertically stacked ZnO sheet-like nanorod p-n homojunctions and their application as UV photodetectors

Title
Solution processed vertically stacked ZnO sheet-like nanorod p-n homojunctions and their application as UV photodetectors
Author
홍진표
Keywords
CHEMICAL-VAPOR-DEPOSITION; NANOWIRE ARRAYS; ZINC-OXIDE; THIN-FILMS; PHOTOLUMINESCENCE; SEMICONDUCTORS; TRANSPARENT; HYDROGEN; GAP
Issue Date
2016-01
Publisher
ROYAL SOC CHEMISTRY
Citation
JOURNAL OF MATERIALS CHEMISTRY C, v. 4, NO 1, Page. 142-149
Abstract
One long-standing goal in the development of one-dimensional nanostructured electronic devices is to facilitate the ongoing trend of miniaturization so as to enable ultralow power operation. Zinc oxide (ZnO) nanostructures, which have a direct and wide bandgap, are a central component in numerous electronic and optoelectronic applications. Here, we address vertically stacked ZnO sheet-like nanorod (SLNR) p-n homojunctions composed of single-crystalline undoped (n-type) and Li-doped (p-type) ZnO SLNRs by a multi-step solution-based hydrothermal route. Precise control of the molar concentration represented one of the basic factors in ensuring that the p-n homojunctions possessed appropriate densities and suitable morphologies. An extensive analysis of the luminescence features was carried out in order to identify p-type conduction in the Li-doped ZnO SLNRs. In addition, the SLNR-based p-n homojunctions exhibited distinct electrical features that validated their potential use as ultraviolet photodetectors, thereby spurring progress in the development of practical optoelectronics.
URI
http://pubs.rsc.org/en/Content/ArticleLanding/2016/TC/C5TC02977E#!divAbstracthttp://hdl.handle.net/20.500.11754/31442
ISSN
2050-7526; 2050-7534
DOI
10.1039/c5tc02977e
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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