A novel red emitting phosphor LiBaB 9 O 15 :Sm 2+ /Sm 3+ , li +  with broad excitation band for white LEDs | Zendy

Li Ting | Zendy; Wang Zhijun | Zendy; Li Panlai | Zendy; Xu Shuchao | Zendy; Bai Qiongyu | Zendy; Yang Zhiping | Zendy

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A novel red emitting phosphor LiBaB 9 O 15 :Sm 2+ /Sm 3+ , li + with broad excitation band for white LEDs

Author(s) -

Li Ting,

Wang Zhijun,

Li Panlai,

Xu Shuchao,

Bai Qiongyu,

Yang Zhiping

Publication year - 2018

Publication title -

luminescence

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.428

H-Index - 45

eISSN - 1522-7243

pISSN - 1522-7235

DOI - 10.1002/bio.3432

Subject(s) - phosphor , chromaticity , luminescence , x ray photoelectron spectroscopy , analytical chemistry (journal) , excitation , materials science , light emitting diode , chemistry , optoelectronics , nuclear magnetic resonance , optics , physics , chromatography , quantum mechanics

A novel tunable red emitting phosphor LiBaB 9 O 15 :Sm 2+ /Sm 3+ , Li + with broad excitation band was synthesized by a high temperature solid‐state method. Luminescence properties were investigated in detail by luminescence, X‐ray photoelectron spectroscopy (XPS) spectra and CIE chromaticity coordinates. XPS data confirmed that there were Sm 3+ in LiBaB 9 O 15 :Sm 3+ and Sm 2+ /Sm 3+ in LiBaB 9 O 15 :Sm 2+ /Sm 3+ , respectively. Spectral property of LiBaB 9 O 15 :Sm 3+ , LiBaB 9 O 15 :Sm 3+ /Sm 2+ and LiBaB 9 O 15 :Sm 2+ , Li + presented that the excitation band of Sm 3+ widened and the excitation band of Sm 2+ ranged from 350 to 450 nm. And the red light color is tunable with changing Li + concentration. The results indicated that LiBaB 9 O 15 :Sm 2+ /Sm 3+ , Li + may be promising red phosphor for white light emitting diodes.

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