کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1483516 | 1510497 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Photoluminescent spectroscopic and kinetic studies on green-emitting CdSeS quantum dot/polymethyl methacrylate composite
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Highly luminescent CdSeS quantum dots have been assembled in polymethyl methacrylate transparent composite (abbreviated as QDs/PMMA) through a prepolymerization method. The spectroscopic and kinetic studies of green-emitting CdSeS QDs dispersed in PMMA matrix are investigated by use of femtosecond laser excitation compared with that suspended in toluene and close-packed coated thin film on silica substrate. Steady-state spectroscopy of QDs/PMMA is blue-shift 2 nm than that of dispersed in toluene but is red-shift about 9 nm than that of close-packed thin film. The kinetic characterization interpreting peak shift and difference between them is the change of relative intensity between band-edge and trapping state.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 356, Issues 20–22, 1 May 2010, Pages 1016–1020
Journal: Journal of Non-Crystalline Solids - Volume 356, Issues 20–22, 1 May 2010, Pages 1016–1020
نویسندگان
Wenzhi Wu, Wei Qu, Hong-An Ye, Zhiren Zheng, Yanqiang Yang,