Highly efficient up-conversion luminescence in BaCl2:Er3+ phosphors via simultaneous multiwavelength excitation. (5th February 2015)

• Record Type: Journal Article
• Authors: Chen, Zhi; Zhang, Xiaowen; Zeng, Shengfeng; Liu, Zhengjun; Ma, Zhijun; Dong, Guoping; Zhou, Shifeng; Liu, Xiaofeng; Qiu, Jianrong
• Is Part Of: Applied physics express. Volume 8:Number 3(2015:Mar.)
• Publication Date: 2015-02-05
• Subjects: Physics -- Periodicals; Technology -- Periodicals; 621.05
• DOI: 10.7567/APEX.8.032301
• Languages: English
• ISSNs: 1882-0778

Abstract

Abstract: It has been observed that BaCl2 :Er 3+ phosphors have a higher up-conversion luminescence efficiency than the well-known fluoride regarded widely as the most efficient up-conversion host material. The near-infrared-to-visible up-conversion luminescence is markedly enhanced for BaCl2 :Er 3+ phosphors when excited simultaneously at two wavelengths (808 and 980 nm) in contrast to the case of single-wavelength excitation. Furthermore, our results demonstrate that the multiwavelength simultaneously excited up-conversion process in BaCl2 :Er 3+ phosphors allows better and broader harvesting of near-infrared solar energy, which is expected to open the possibilities of the remarkable improvement of the power conversion efficiency of next-generation solar cells.