Crystal structure and admirable luminescence properties of novel red emitting BiOCl: Eu3+ phosphors for indoor illumination

• DOI: 10.1016/j.cplett.2020.137599
• Publication Date: 2020-05-13T16:15:39Z
• Authors: Tingting Qian; Ao Li; Yahui Li; Jean Joël Roland ...; Mingjie Xu; Bin Fan
• Keywords: Crystal (programming language)

Abstract The BiOCl: Eu3+ phosphors were synthesized, utilizing a solid-state reaction method. The crystal structure and morphology of the Eu3+-doped BiOCl were elucidated. The Eu3+-activated BiOCl phosphors showed broad adsorption in the near-ultraviolet region, which emitted intense red emission with the color purity of 71.8%. The quantum yield of the Bi0.95OCl: 0.05Eu3+ phosphor was found to be 0.323. Moreover, the recorded temperature-dependent luminescence spectra indicate that the emission intensity at 150 °C could still remain 80% of that at room temperature, which also verified an excellent thermal resistance performance for the Bi0.95OCl: 0.05Eu3+ sample, which have great potential for indoor illumination.