کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5442912 | 1510771 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spectroscopy of new Sm(III) orange emitting phosphors of the type Na[Sm(SP)4], Na[Sm(WO)4] (where SPÂ =Â C6H5S(O)2NP(O)(OCH3)2â; WOÂ =Â CCl3C(O)NP(O)(OCH3)2â) and the polymeric materials obtained on their base
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Two types of new Sm(III) chelates; phosphoro and sulfono-derivatives of beta-diketones and polymeric materials on their base were obtained and characterized by the high resolution photoluminescence spectroscopy at 293, 77 and 4Â K, as well as by luminescence decay times. Those new type of phosphors shows strong orange emission after excitation at 404Â nm Sm(III) states and 280Â nm ligand bands. Radiative transition probabilities were calculated from absorption spectra and Judd- Ofelt parameters evaluated. Effects of the temperature, rigidity of polymeric lattice and the energy of excitation on intensities of the Sm(III) fluorescence were studied. The paths of energy transfer are analysed and mechanism of this process is proposed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 63, January 2017, Pages 32-41
Journal: Optical Materials - Volume 63, January 2017, Pages 32-41
نویسندگان
Joanna CybiÅska, MaÅgorzata Guzik, Yuriy Gerasymchuk, Victor A. Trush, RadosÅaw Lisiecki, Janina Legendziewicz,