Controlling of Structural Ordering and Rigidity of beta-SiAION:Eu   through Chemical Cosubstitution to Approach Narrow-Band Emission for   Light-Emitting Diodes Application

doi:10.1021/acs.chemmater.7b01697

CORC > 北京大学 > 化学与分子工程学院

	Controlling of Structural Ordering and Rigidity of beta-SiAION:Eu through Chemical Cosubstitution to Approach Narrow-Band Emission for Light-Emitting Diodes Application
	Zhang, Xuejie ; Fang, Mu-Huai ; Tsai, Yi-Ting ; Lazarowska, Agata ; Mahlik, Sebastian ; Lesniewski, Tadeusz ; Grinberg, Marek ; Pang, Wei Kong ; Pan, Fengjuan ; Liang, Chaolun ; Zhou, Wuzong ; Wang, Jing ; Lee, Jyh-Fu ; Cheng, Bing-Ming ; Hung, Tsu-Lien ; Chen, Yang-Yuan ; Liu, Ru-Shi
刊名	CHEMISTRY OF MATERIALS
	2017
关键词	HIGH THERMAL-STABILITY LUMINESCENCE PROPERTIES SRLIAL3N4EU2+ PHOSPHOR SIALON CERAMICS PHOTOLUMINESCENCE PRESSURE CRYSTAL BETA-SI6-ZALZOZN8-Z BETA-SIALON/PR3+ SI6-ZALZOZN8-Z
DOI	10.1021/acs.chemmater.7b01697
英文摘要	Narrow-band greem-emitting phosphor beta-SiA-lON:Eu has been widely used in advanced wide-gamut backlighting devices. However, the origins for unusual sharp lines in photoluminescence emission at room temperature and tunable narrow-band-emission tailored by reducing Al-O in beta-SiAlON:Eu are still unclear. Here, the presence of sharp-line fine structure in the emission spectra of beta-SiAlON:Eu is mainly due to purely electronic transitions (zero phonon lines), and their vibronic repetitions resulting from the multimicroenvironment around Eu2+ ions that has been revealed by relative emission intensity of sharp line depends on excitation wavelength and monotonously increasing decay time. The specific features of the Eu2+ occupying interstitial sites indicate that the effect of crystal field strength can be neglected. Therefore, the enhanced rigidity and higher ordering structure of beta-SiAlON:Eu with decreasing the substitution of Si-N by Al-O become the main factors in decreasing electron lattice coupling and reducing inhomogeneous broadening, favoring the blue shift and narrow of the emission band, the enhanced thermal stability, as well as the charge state of Eu2+. Our results provide new insights for explaining the reason for narrow-band-emission in beta-SiAlON:Eu, which will deliver an impetus for the exploration of phosphors with narrow band and ordering structure.; Ministry of Science and Technology of Taiwan [MOST 104-2113-M-002-012-MY3, MOST 104-2119-M-002-027-MY3, 104-2923-M-002-007-MY3]; Australia Research Council (ARC) [FT160100251]; grant "Preludium" Grant from National Science Center [UMO-2014/13/N/ST3/03781]; Ministry of Science and Higher Education [0271/IP3/2015/73]; Polish National Center for Research and Development [PBS3/A5/48/2015, PL-TWII/8/2015]; SCI(E); ARTICLE; 16; 6781-6792; 29
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/471393]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhang, Xuejie,Fang, Mu-Huai,Tsai, Yi-Ting,et al. Controlling of Structural Ordering and Rigidity of beta-SiAION:Eu through Chemical Cosubstitution to Approach Narrow-Band Emission for Light-Emitting Diodes Application[J]. CHEMISTRY OF MATERIALS,2017.
APA	Zhang, Xuejie.,Fang, Mu-Huai.,Tsai, Yi-Ting.,Lazarowska, Agata.,Mahlik, Sebastian.,...&Liu, Ru-Shi.(2017).Controlling of Structural Ordering and Rigidity of beta-SiAION:Eu through Chemical Cosubstitution to Approach Narrow-Band Emission for Light-Emitting Diodes Application.CHEMISTRY OF MATERIALS.
MLA	Zhang, Xuejie,et al."Controlling of Structural Ordering and Rigidity of beta-SiAION:Eu through Chemical Cosubstitution to Approach Narrow-Band Emission for Light-Emitting Diodes Application".CHEMISTRY OF MATERIALS (2017).