Open AccessEffect of the defect on photoluminescence property of Al-coated ZnO nanostructures
Author(s) -
Yanjun Fang,
Yewu Wang,
Lin Gu,
Lu Ren,
Jian Sha
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.003492
Subject(s) - photoluminescence , materials science , nanowire , hydrothermal circulation , nanostructure , thermal , evaporation , nanorod , optoelectronics , nanotechnology , thin film , optics , chemical engineering , physics , meteorology , engineering , thermodynamics
The room-temperature photoluminescence (PL) spectra of hydrothermal grown ZnO film and nanowires coated with Al are investigated, which exhibit much less UV emission enhancement ratio as against that of nanowires fabricated by thermal evaporation method. A model is suggested at last to interpret the experimental results considering the influence of the defect on the contact property between metal and ZnO, which is further evidenced by the weak PL enhancement ratio of thermal evaporation grown ZnO nanowires with H(2)O(2) treatment.