Premium
Preparation and Application of Strong Near‐Infrared Emission Phosphor Sr 3 SiO 5 :Ce 3+ ,Al 3+ ,Nd 3+
Author(s) -
Chen Jiajun,
Liu Jie,
Yao Hui,
Li Xiaoqing,
Yao Zhiling,
Yue Huili,
Yu Xibin
Publication year - 2015
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.13514
Subject(s) - phosphor , analytical chemistry (journal) , materials science , doping , ion , infrared , chemistry , optoelectronics , optics , physics , organic chemistry , chromatography
This work investigated the near‐infrared ( NIR ) emission properties of m Ce 3+ , x Nd 3+ codoped Sr 3− m − x (Si 1− m − x Al m + x )O 5 phosphors. Samples with various doping concentrations were synthesized by the high‐temperature solid‐state reaction. Al 3+ ions have the ability to promote Ce 3+ ions to enter into the Sr 2+ sites and to improve the visible emission of Ce 3 + . Thus the NIR emission of Nd 3+ is enhanced by the energy‐transfer process, which occurred from Ce 3+ to Nd 3 + . The device based on these NIR emission phosphors is fabricated and combined with a commercial c‐Si solar cell for performance testing. Short‐circuit current density of the solar cell is increased by 7.7%. Results of this work suggest that the Sr 2.95 Si 0.95 Al 0.05 O 5 :0.025Ce 3+ , 0.025Nd 3+ phosphors can be used as spectral convertors to improve the efficiency of c‐Si solar cell.