کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5353902 | 1503680 | 2013 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spatial-resolved cathode luminescence study of S-doped ZnO particles for the luminescence of UV, green and orange band emission
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 283, 15 October 2013, Pages 258-262
Journal: Applied Surface Science - Volume 283, 15 October 2013, Pages 258-262
نویسندگان
Yuanping Sun, Hongying Guo, Feihong Jiang, Run Yuan, Jun Zhang, Xionghui Zeng, Taofei Zhou, Yongxin Qiu, Baoshun Zhang, Ke Xu, Hui Yang,