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Photoluminescent properties of ZnO/Zn0.8Mg0.2O nanorod single-quantum-well structures

Title
Photoluminescent properties of ZnO/Zn0.8Mg0.2O nanorod single-quantum-well structures
Authors
Park, WIAn, SJYang, JLYi, GCHong, SJoo, TKim, M이규철
Date Issued
Jan-2004
Publisher
AMER CHEMICAL SOC
Abstract
We report on photoluminescent properties of ZnO/Zn0.8Mg0.2O nanorod single-quantum-well structures (SQWs). Catalyst-free metalorganic vapor-phase epitaxy (MOVPE) was employed for precise controls of well widths and compositions of the nanorod SQWs. Both time-integrated and time-resolved photoluminescence (PL) spectra of ZnO/Zn0.8Mg0.2O nanorod SQWs were measured at various temperatures between 10 and 300 K. From the PL spectra of the nanorod SQWs measured at 10 K, a PL peak blue-shift dependent on ZnO well layer width was observed, resulting from a quantum confinement effect. Further photoluminescent properties of the nanorod SQWs were investigated measuring time-resolved PL (TRPL) and temperature-dependent PL spectra.
Keywords
TEMPERATURE-DEPENDENCE; OPTICAL-PROPERTIES; WIDTH DEPENDENCE; CARRIER DYNAMICS; NANOWIRE; GROWTH
URI
http://oasis.postech.ac.kr/handle/2014.oak/17682
DOI
10.1021/JP046559T
ISSN
1520-6106
Article Type
LETTER
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