平衡气量控制法合成四针状氧化锌晶须的形貌和发光性能

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Bibliographic Details
Published in中国有色金属学报：英文版 Vol. 21; no. 9; pp. 2056 - 2060
Main Author 范希梅 周祚万 王婕 田柯
Format Journal Article
LanguageEnglish
Published 2011
Subjects
晶体生长
晶须
氧化
氧化锌
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ISSN1003-6326

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Bibliography:FAN Xi-mei, ZHOU Zuo-wan, WANG Jie, TIAN Ke Key Laboratory of Advanced Technologies of Materials of Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
43-1239/TG
ZnO; whisker; oxidation; crystal growth
The zinc oxide whiskers were synthesized by the equilibrium gas expanding method at the temperature of 700 C with metallic zinc as the main raw material without any catalysts. The effects of the growth time on microstructure and photoluminescence properties were investigated. The results show that the as-grown samples are composed of uniform tetrapod-like ZnO whiskers. The length and diameter of the arms of the tetrapod-like ZnO whiskers increase obviously with the increase of the growth time. The strong single ultraviolet （UV） emission centering 385-391 nm without any accompanying deep-level emission is observed in the room temperature photoluminescence （PL） spectra of the whiskers. The intensity of UV emission increases markedly with the increase of growth time.
ISSN:1003-6326