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 1,3; Wang, Ren-Hong 1,6; Yin, Lichang 4; Chen, Jun 5; Su, Chaochin 6; Xing, Xianran 5; Liu, Ru-Shi 1,2,7
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/321006/134220]
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.Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan 2.Natl Taipei Univ Technol, Dept Mech Engn, 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.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 5.Univ Sci & Technol Beijing, Dept Phys Chem, Beijing 100083, Peoples R China 6.Natl Taipei Univ Technol, Inst Organ & Polymer Mat, Res & Dev Ctr Smart Text Technol, Taipei 10608, 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.