کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10669634 | 1008762 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Photoluminescence properties of polymethyl methacrylate-coated Zn2SnO4 nanowires
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Photoluminescence properties of polymethyl methacrylate-coated Zn2SnO4 nanowires Photoluminescence properties of polymethyl methacrylate-coated Zn2SnO4 nanowires](/preview/png/10669634.png)
چکیده انگلیسی
Polymethyl methacrylate (PMMA)-coated Zn2SnO4 nanowires were synthesized by a two-step process: thermal evaporation of a mixture of Zn and Sn powders at 700 °C in an oxidizing atmosphere followed by spin coating of PMMA solution. The nanowires were 30-80 nm in diameter and up to a few hundred of micrometers in length. Photoluminescence showed that the near-band edge (NBE) emission-to-visible emission ratio of Zn2SnO4 was enhanced significantly by PMMA coating. The highest NBE emission-to-visible emission ratio was obtained at a PMMA concentration of 0.25 mM. INBE/IDL was increased almost 10 times by coating the nanowires with 0.25-mM PMMA. The enhanced NBE emission and suppressed visible emission might be due to enhanced excitonic emission efficiency.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 591, Part B, 30 September 2015, Pages 336-340
Journal: Thin Solid Films - Volume 591, Part B, 30 September 2015, Pages 336-340
نویسندگان
Sunghoon Park, Soohyun Kim, Seungbok Choi, Sangmin Lee, Chongmu Lee,