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Synthesis, characterization, and optical properties of Mg‐doped zinc oxide single‐crystal microprisms
Author(s) -
Li Junlin,
Zhuang Huizhao,
Wang Jie,
Xu Peng
Publication year - 2011
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201026448
Subject(s) - high resolution transmission electron microscopy , photoluminescence , materials science , zinc , microstructure , doping , transmission electron microscopy , single crystal , crystal (programming language) , scanning electron microscope , oxide , chemical vapor deposition , chemical engineering , crystallography , nanotechnology , optoelectronics , chemistry , composite material , metallurgy , computer science , programming language , engineering
Novel zinc oxide (ZnO) microprisms doped with Mg have been synthesized on Mg (NO 3 ) 2 ‐coated Si (111) substrates successfully by a thermal chemical vapor deposition method. The as‐prepared Mg‐doped zinc oxide single‐crystal microprisms were characterized with X‐ray diffraction (XRD), scanning electron microscopy (SEM), high‐resolution transmission electron microscopy (HRTEM), and photoluminescence (PL). The results show that the microstructures consist of hexagonal pyramids tips and hexagonal prisms. The whole structure is a perfect single crystal and has preferred growth along the [0001] direction. PL reveals ultraviolet (UV) emission at 388 nm and a strong green light emission peak at 500 nm. Mg‐doped microprisms will provide an improvement for novel electronic and optical devices. In addition, the growth mechanism of the special Mg‐doped ZnO microstructure is proposed based on a solid–vapor approach.