کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7839825 | 1505859 | 2018 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Understanding the mechanoluminescent mechanisms of manganese doped zinc sulfide based on load effects
ترجمه فارسی عنوان
درک مکانیسم های مکانیزم سولفید روی دوگانه منگنز بر اساس اثرات بار
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
چکیده انگلیسی
In this work, manganese doped zinc sulfide (ZnS: Mn2+) powder was synthesized, which was further composited with epoxy resin. In addition to the bright photoluminescence (PL), two types of mechanoluminescence (ML), i.e., friction and compression induced luminescence, were observed in ZnS: Mn2+/epoxy composites. To deeply understand the mechanoluminescent mechanisms of ZnS: Mn2+, the performance differences between PL and ML were investigated. The results suggested that the piezoelectric effect induced electroluminescence should not be the exact mechanism of ML. Moreover, load effects on the friction and compression induced ML as well as the thermoluminescence (ThL) were investigated. The variations of trap depth and carrier density in ZnS: Mn2+ before and after mechanics stimulation provided direct evidence that the release of electrons from traps should be responsible for ML. The load effects of ML also supported the proposed trap-based mechanisms, and the underlying theory was discussed in detail. This work first presents solid evidences for the trap-based mechanoluminescent mechanisms of ZnS: Mn2+ in elastic region.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 203, November 2018, Pages 683-688
Journal: Journal of Luminescence - Volume 203, November 2018, Pages 683-688
نویسندگان
Hui Zhou, Yide Du, Chen Wu, Yanjiao Jiang, Fu Wang, Jiachi Zhang, Zhaofeng Wang,