Crystal structure, luminescence properties, energy transfer, tunable occupation and thermal properties of a novel color-tunable phosphor NaBa1−zSrzB9O15:xCe3+, yMn2+. Issue 39 (18th September 2018)

• Record Type: Journal Article
• Authors: Bao, Qi; Wang, Zhijun; Sun, Jiang; Wang, Zhipeng; Meng, Xiangyu; Qiu, Keliang; Chen, Yun; Yang, Zhiping; Li, Panlai
• Is Part Of: Dalton transactions. Volume 47:Issue 39(2018)
• Page Start: 13913
• Page End: 13925
• Publication Date: 2018-09-18
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c8dt02780c
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : A series of color-tunable NaBa1− z Sr z B9 O15 :Ce 3+, Mn 2+ phosphors were synthesized by a high temperature solid state method. Abstract : A series of color-tunable NaBa1− z Sr z B9 O15 :Ce 3+, Mn 2+ phosphors were synthesized by a high temperature solid state method. Luminescence property, energy transfer, thermal stability and cation substitution were investigated in detail. Due to energy transfer, NaBaB9 O15 :Ce 3+, Mn 2+ presents violet to green luminescence and manifest a broad excitation range from 200 to 350 nm. The energy transfer mechanism of Ce 3+ –Mn 2+ is identified as a dipole–dipole interaction. NaBa1− z Srz B9 O15 :Ce 3+, Mn 2+ displays both Ce 3+ violet and Mn 2+ green and orange emissions under ultraviolet excitation. It is observed that Sr 2+ partial substitution for Ba 2+ could adjust the ratio of Mn 2+ emission intensity in different cation sites, which results from preferred sites' occupation with modification of the crystal structure. Furthermore, increase in temperature can enhance the energy transfer from Ce 3+ to Mn 2+, which enhances the Mn 2+ emission intensity sharply. The highly thermal-sensitive property of NaBa1− z Sr z B9 O15 :Ce 3+, Mn 2+ makes it feasible for its potential application in luminescent ratiometric thermometers with wide temperature range.