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Yb 3+ site occupation and host sensitization luminescence of a novel near‐infrared emitting Sr 2 CaMoO 6 :Yb 3+ phosphor
Author(s) -
Wang Enyan,
Zhou Wenli,
Liu Chunmeng,
Wang Jing,
Kuang Xiaojun,
Ye Yanmei,
Tang Jinke,
Su Qiang
Publication year - 2014
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201308278
Subject(s) - phosphor , luminescence , raman spectroscopy , quantum yield , ultraviolet , infrared , materials science , ion , analytical chemistry (journal) , optoelectronics , chemistry , optics , physics , fluorescence , organic chemistry , chromatography
The host sensitized near‐infrared (NIR) emitting phosphor Sr 2 CaMoO 6 :Yb 3+ was fabricated by the solid state reaction method. The structural refinement and Raman spectra elucidate that Yb 3+ ions preferentially occupy Ca 2+ sites. The phosphor can harvest ultraviolet (UV)–blue photons and exhibits intense NIR emission at around 1012 nm with full‐width‐at‐half‐maximum of 1635 cm –1 . Moreover, the absolute NIR photoluminesence quantum yield (PLQY) is estimated to be about 9%. The Sr 2 CaMoO 6 :Yb 3+ phosphor may be a promising luminescence downshifting material for improving the spectral response of solar cells in the UV region. (© 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)