کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
578228 | 1453124 | 2012 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
ZnS nanocrystals and nanoflowers synthesized by a green chemistry approach: Rare excitonic photoluminescence achieved by the tunable molar ratio of precursors
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: ZnS nanocrystals and nanoflowers synthesized by a green chemistry approach: Rare excitonic photoluminescence achieved by the tunable molar ratio of precursors ZnS nanocrystals and nanoflowers synthesized by a green chemistry approach: Rare excitonic photoluminescence achieved by the tunable molar ratio of precursors](/preview/png/578228.png)
چکیده انگلیسی
In the present work, we demonstrated a simple and green synthesis route for shape-controlled ZnS nanocrystals, where only environmentally benign chemicals, namely sulfur, zinc oxide and olive oil, were employed. By controlling the experimental conditions, we were able to tune the band edge and trap state photoluminescences of ZnS nanocrystals and obtain pure excitonic photoluminescence that was rarely observed in literature. The trap state emission was derived from sulfur vacancies and would be eliminated when an excess of sulfur was used during the synthesis. Additionally, the morphology of ZnS nanocrystals could be tuned to appear like flowers, where the formation mechanism was systematically discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volumes 211â212, 15 April 2012, Pages 62-67
Journal: Journal of Hazardous Materials - Volumes 211â212, 15 April 2012, Pages 62-67
نویسندگان
Ningru Xiao, Quanqin Dai, Yingnan Wang, Jiajia Ning, Bingbing Liu, Guangtian Zou, Bo Zou,