کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7225383 | 1470573 | 2018 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Elimination of quenching defects by facile anion doping in CdSiO3 synthesized by green fuel assisted combustion method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Elimination of quenching defects by facile anion doping in CdSiO3 synthesized by green fuel assisted combustion method Elimination of quenching defects by facile anion doping in CdSiO3 synthesized by green fuel assisted combustion method](/preview/png/7225383.png)
چکیده انگلیسی
Despite being simple, and economical method, solution combustion synthesis (SCS) method's applicability in preparation of silicate based phosphors is seriously limited. This is due to the fact that SCS method results in samples with quenching defects.We present a simple one pot synthesis technique for eliminating the defects in CdSiO3 by simple anion doping. We show that just by mere addition of SO42â anion, defects related to different kinds of oxygen vacanices disappear and PL spectra shows pure blue emission. Powder X-ray diffraction (PXRD) and scanning electron microscopy (SEM) reveals that the SO42âdoped CdSiO3 exhibits monoclinic phase and rod-like microstructure morphology respectively. Photoluminescence (PL) results reveal that the SO42â doped CdSiO3 shows a single emission at 406Â nm under the excitation wavelength of 259Â nm. Where as undoped CdSiO3 phosphor presented a series of emission peaks ranging from UV to green (349, 404, 423, 444, 472, 508 and 529Â nm) under the same excitation wavelength.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - Volume 154, February 2018, Pages 670-675
Journal: Optik - Volume 154, February 2018, Pages 670-675
نویسندگان
J. Shivakumara, Chikkahanumantharayappa Chikkahanumantharayappa, S. Ashoka, R. Hari Krishna, G. Vijayakumar, C. Manjunatha, B.M. Nagabhushana, G. Nagaraju,