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Luminescent properties of novel reddish orange phosphor LaInO3Sm3+ for white light emitting diodes

AN TANG1,* , YONGTAO ZHAO1, HAOMING ZHANG1, TAO MA1, FENGXIANG SHAO1, HONGSONG ZHANG1

Affiliation

  1. Department of Mechanical Engineering, Henan Institute of Engineering, Zhengzhou, Henan 451191, China

Abstract

A novel reddish orange luminescent material LaInO3 doped with Sm3+ was synthesized by solid state reaction . The crystal structure and photoluminescence properties were respectively discussed. The XRD pattern indicates that little amount of doped Sm3+ ions has nearly no effect on the host structure. The spectra reveal that the phosphor can be effectively excited under the excitation of near UV or blue light to emit high intensity reddish orange light at 600nm deriving from 4G5/26 H7/2 transition of Sm3+3+. The photoluminescence intensity is related to the concentration of Sm3+3+, and the optimal Sm3+ doped concentration is 4mol%. Due to its good luminescence performance, the phosphor LaInO3:Sm3+ may be a potential candidate for white light emitting diodes..

Keywords

Solid state reaction, Phosphor, LaInO3 , LEDs.

Citation

AN TANG, YONGTAO ZHAO, HAOMING ZHANG, TAO MA, FENGXIANG SHAO, HONGSONG ZHANG, Luminescent properties of novel reddish orange phosphor LaInO3Sm3+ for white light emitting diodes, Optoelectronics and Advanced Materials - Rapid Communications, 9, 1-2, January-February 2015, pp.20-23 (2015).

Submitted at: Oct. 9, 2014

Accepted at: Jan. 21, 2015