Spatial-resolved cathode luminescence study of S-doped ZnO particles for the luminescence of UV, green and orange band emission
Spatial-resolved cathode luminescence study of S-doped ZnO particles for the luminescence of UV, green and orange band emission
复制标题
S 掺杂 ZnO 颗粒的空间分辨阴极发光研究,用于紫外、绿光和橙光波段发射
DOI:
10.1016/j.apsusc.2013.06.096
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发表时间:
2013-10
影响因子:
6.7
通讯作者:
Hui Yang
中科院分区:
文献类型:
--
作者:
Yongxin Qiu;Baoshun Zhang;Ke Xu;Hui Yang
The hexagonal bi-pillar structures of undoped and sulfur-doped ZnO particles have been synthesized by hydrothermal method to study the relationship between UV and long wavelength emissions, green emission (GE) and orange emission (OE) bands. A room temperature photoluminescence comparison between undoped and sulfur-doped ZnO shows an increase of long wavelength emission, that is presumably due to an increase of defects in doped ZnO. Spatial cathode luminescence (CL) analysis on a single ZnO particle shows a competitive behavior between GE and OE bands. The long wavelength emissions in ZnO are all related to Zn vacancies. GE will dominate if the Zn vacancy-related oxygen stays at lattice point; otherwise OE will dominate if this oxygen atom leaves lattice point to form a interstitial atom.
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DOI:
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