Alcohol-Guided Growth of Two-Dimensional Narrow-Band Red-Emitting K2TiF6:Mn4+ for White-Light-Emitting Diodes

doi:10.1021/acsami.9b03528

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	Alcohol-Guided Growth of Two-Dimensional Narrow-Band Red-Emitting K2TiF6:Mn4+ for White-Light-Emitting Diodes
	Zhou, Wenli 2,3; Wang, Ren-Hong 2,5; Yin, Lichang 1; Chen, Jun 4; Su, Chaochin 5; Xing, Xianran 4; Liu, Ru-Shi 2,6,7
刊名	ACS APPLIED MATERIALS & INTERFACES
	2019-06-05
卷号	11 期号:22 页码:20143-20149
关键词	narrow band red emission K2TiF6:Mn4+ two-dimensional material backlight light-emitting diode
ISSN号	1944-8244
DOI	10.1021/acsami.9b03528
通讯作者	Yin, Lichang(lcyin@imr.ac.cn) ; Su, Chaochin(f10913@ntut.edu.tw) ; Xing, Xianran(xing@ustb.edu.cn) ; Liu, Ru-Shi(rsliu@ntu.edu.tw)
英文摘要	The use of red phosphors with low light-scattering loss could improve the luminous efficacy and color rendering of white-light-emitting diodes (LEDs). Thus, the discovery of such phosphors is highly desired. In this work, high-efficiency two-dimensional red-emitting K2TiF6:Mn4+ (KTFM) were synthesized via an alcohol-assisted coprecipitation route. The synergistic effects of 1-propanol and hydrofluoric acid on the growth of KTFM microsheets (MSs) were studied through the first-principles calculations, which revealed that 1-propanol promoted the growth of KTFM MSs by preferentially adsorbing on the H-terminated K2TiF6 (001) surface. The photoluminescence quantum efficiency (QE) of Mn4+ -activated K2TiF6 MSs was highly related to their size and thickness. The morphology-optimal KTFM MSs presented high internal QE (>90%), external QE (>71%), and thermal quenching temperature (102% at 150 degrees C relative to that at 25 degrees C). A prototype phosphor-converted LED with KTFM as the red-emitting component showed excellent color rendition (R-a = 91, R9 = 79) and high luminous efficacy (LE = 156 lm/w).
资助项目	Ministry of Science and Technology of Taiwan[MOST 107-2113-M-002-008-MY3] ; Ministry of Science and Technology of Taiwan[MOST 106-2112-M-003-007-MY3] ; University of Science and Technology Beijing[NTUT-USTB-106-02] ; National Taipei University of Technology[NTUT-USTB-106-02] ; Scientific Research Fund of Hunan Provincial Education Department[18A005] ; National Natural Science Foundation of China[51472249]
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000470938500052
资助机构	Ministry of Science and Technology of Taiwan ; University of Science and Technology Beijing ; National Taipei University of Technology ; Scientific Research Fund of Hunan Provincial Education Department ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/134219]
专题	金属研究所_中国科学院金属研究所
通讯作者	Yin, Lichang; Su, Chaochin; Xing, Xianran; Liu, Ru-Shi
作者单位	1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan 3.Hunan Normal Univ, Key Lab Chem Biol & Tradit Chinese Med Res, Minist Educ, Coll Chem & Chem Engn, Changsha 410081, Hunan, Peoples R China 4.Univ Sci & Technol Beijing, Dept Phys Chem, Beijing 100083, Peoples R China 5.Natl Taipei Univ Technol, Inst Organ & Polymer Mat, Res & Dev Ctr Smart Text Technol, Taipei 10608, Taiwan 6.Natl Taipei Univ Technol, Dept Mech Engn, Taipei 106, Taiwan 7.Natl Taipei Univ Technol, Grad Inst Mfg Technol, Taipei 106, Taiwan
推荐引用方式 GB/T 7714	Zhou, Wenli,Wang, Ren-Hong,Yin, Lichang,et al. Alcohol-Guided Growth of Two-Dimensional Narrow-Band Red-Emitting K2TiF6:Mn4+ for White-Light-Emitting Diodes[J]. ACS APPLIED MATERIALS & INTERFACES,2019,11(22):20143-20149.
APA	Zhou, Wenli.,Wang, Ren-Hong.,Yin, Lichang.,Chen, Jun.,Su, Chaochin.,...&Liu, Ru-Shi.(2019).Alcohol-Guided Growth of Two-Dimensional Narrow-Band Red-Emitting K2TiF6:Mn4+ for White-Light-Emitting Diodes.ACS APPLIED MATERIALS & INTERFACES,11(22),20143-20149.
MLA	Zhou, Wenli,et al."Alcohol-Guided Growth of Two-Dimensional Narrow-Band Red-Emitting K2TiF6:Mn4+ for White-Light-Emitting Diodes".ACS APPLIED MATERIALS & INTERFACES 11.22(2019):20143-20149.