Chemical control of SrLi(Al1–xGax)3N4:Eu2+ red phosphors at extreme conditions for application in light-emitting diodes

Mu-Huai Fang , Shu-Yi Meng , Natalia Majewska , Tadeusz Leśniewski , Sebastian Mahlik , Marek Grinberg , Hwo-Shuenn Sheu , Ru-Shi Liu

Abstract

Phosphor materials are promising candidates for white-light-emitting diode applications. High-quality phosphor materials must be synthesized under extreme conditions. In this study, a series of SrLi(Ali_ Gax)3N4:Eu2+ (GSLA) narrow-band emission red phosphors are successfully synthesized under 1000 atm nitrogen gas atmosphere through the hot isostatic press, which cannot be achieved under low pressure. Successful Ga incorporation is confirmed by X-ray diffraction and Rietveld refinement. Phonon repetition structure and detailed thermal properties are analyzed by temperature-dependent photoluminescence intensity and lifetime. The structural ordering and rigidity are comprehensively evaluated by Raman spectra. The blue shift of the photoluminescence spectra enhances the luminous efficacy of radiation, making GSLA a potential candidate for practical application. This study promotes the research on materials synthesized under extreme conditions and the development of novel phosphor materials.
Author Mu-Huai Fang
Mu-Huai Fang,,
-
, Shu-Yi Meng
Shu-Yi Meng,,
-
, Natalia Majewska (FMPI/IEP)
Natalia Majewska,,
- Institute of Experimental Physics
, Tadeusz Leśniewski (FMPI/IEP)
Tadeusz Leśniewski ,,
- Institute of Experimental Physics
, Sebastian Mahlik (FMPI/IEP)
Sebastian Mahlik,,
- Institute of Experimental Physics
, Marek Grinberg (FMPI/IEP)
Marek Grinberg,,
- Institute of Experimental Physics
, Hwo-Shuenn Sheu
Hwo-Shuenn Sheu,,
-
, Ru-Shi Liu
Ru-Shi Liu,,
-
Journal seriesChemistry of Materials, ISSN 0897-4756, (N/A 200 pkt)
Issue year2019
Vol31
No12
Pages4614-4618
Publication size in sheets0.50
ASJC Classification2505 Materials Chemistry; 1500 General Chemical Engineering; 1600 General Chemistry
DOIDOI:10.1021/acs.chemmater.9b01783
URL https://pubs.acs.org/doi/pdf/10.1021/acs.chemmater.9b01783?rand=6p2j44zn
Languageen angielski
Score (nominal)200
Score sourcejournalList
ScoreMinisterial score = 200.0, 01-06-2020, ArticleFromJournal
Publication indicators WoS Citations = 7.000; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.769; WoS Impact Factor: 2018 = 10.159 (2) - 2018=10.091 (5)
Citation count*9 (2020-07-11)
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