Premium
Synthesis, structure and optical properties of zinc oxide hexagonal microprisms
Author(s) -
Kumari L.,
Li W. Z.
Publication year - 2010
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200900600
Subject(s) - wurtzite crystal structure , zinc , photoluminescence , exciton , substrate (aquarium) , materials science , hydrothermal circulation , hexagonal crystal system , hexagonal phase , oxide , crystallography , optoelectronics , chemistry , chemical engineering , physics , condensed matter physics , metallurgy , oceanography , geology , engineering
Abstract Zinc oxide (ZnO) pencil‐head‐like (PHL) microprisms were synthesized by a hydrothermal route using a zinc (Zn) plate as a source and substrate. The structural analysis confirmed the formation of ZnO with hexagonal wurtzite phase on the hexagonal Zn substrate and the growth of the ZnO microparticles along the [101] direction. The room temperature photoluminescence (PL) of the ZnO microprisms showed a sharp UV emission band located at around 380 nm, which is expected to originate from the radiative recombination of free excitons. The sharp UV emission band, with a full width at half‐maximum of about 15 nm and an extremely weak visible emission, confirms the high crystal quality of the synthesized ZnO microprisms. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)