کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1795419 | 1023721 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Silver nanocluster formation in soda-lime silicate glass by X-ray irradiation and annealing
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Silver nanocluster formation and dissolution was observed in a soda-lime silicate glass with 0.02 wt% of silver after X-ray irradiation followed by annealing. Absorption spectrometry and electron spin resonance measurement results indicated that the silver ions transferred to silver atoms after irradiation. The silver atoms diffused and then aggregated to become nanoclusters after annealing at high temperatures (such as >300 °C). The nanoclusters grew during the first 15 min at 420 °C, and then slowly dissolved over a longer period. The mean nanocluster size estimated based on Mie theory was â¼4 nm at 420 °C for 1 h, decreasing to â¼2 nm after heating for 48 h. The induced defects trapped electrons from silver nanoclusters, and the dissolution of silver nanoclusters to form silver ions results in a net loss in the system energy. The nanoclusters dissolved completely at 560 °C for 1 h.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 305, Issue 1, 1 July 2007, Pages 278-284
Journal: Journal of Crystal Growth - Volume 305, Issue 1, 1 July 2007, Pages 278-284
نویسندگان
Jian Zhang, Wen Dong, Liang Qiao, Juan Li, Jingwu Zheng, Jiawei Sheng,