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Luminescent properties of new bluish white CaBi2B2O7:Dy3+ phosphor for white light emitting diodes

JIANGONG LI1,* , HUIFANG YAN2, WENFU LIU1, FENGMEI YAN3, JINGYU HU1

Affiliation

  1. Engineering Laboratory of Henan Province for New Energy Conversion and Control Technology, College of Mechanical and Energy Engineering, Huanghuai University, Zhumadian, Henan 463000, China
  2. Department of Foreign Languages and Literature, Huanghuai University, Zhumadian, 463000, China
  3. Department of Chemistry and Chemical Engineering, Huanghuai University, Zhumadian, 463000, China

Abstract

A new Dy3+-doped CaBi2B2O7 bluish white phosphor has been prepared by solid-state reaction method. X-ray diffraction (XRD) and photoluminescence (PL) characterization have been carried out to verify the phase purity and the luminescence performance of prepared phosphors, respectively. This phosphor could be efficiently excited by 349 nm light features satisfactory bluish white emitting property. The optimum doping content of Dy3+ ions in the CaBi2B2O7 host was found and the critical transfer distance was calculated. The results demonstrate that CaBi2B2O7 :Dy3+ is a potential bluish white emitting candidate for near-UV pumped white LED..

Keywords

Phosphor; Luminescence, WLED, CaBi2B2O77, Dy3+.

Citation

JIANGONG LI, HUIFANG YAN, WENFU LIU, FENGMEI YAN, JINGYU HU, Luminescent properties of new bluish white CaBi2B2O7:Dy3+ phosphor for white light emitting diodes, Optoelectronics and Advanced Materials - Rapid Communications, 11, 3-4, March-April 2017, pp.232-235 (2017).

Submitted at: Jan. 13, 2016

Accepted at: April 6, 2017