Premium
Zero‐Thermal Quenching of Mn 2+ Red Luminescence via Efficient Energy Transfer from Eu 2+ in BaMgP 2 O 7
Author(s) -
Shi Rui,
Ning Lixin,
Wang Zhiqiang,
Chen Jiatang,
Sham TsunKong,
Huang Yan,
Qi Zeming,
Li Cuijin,
Tang Qiang,
Liang Hongbin
Publication year - 2019
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201901187
Subject(s) - luminescence , phosphor , materials science , quenching (fluorescence) , analytical chemistry (journal) , persistent luminescence , energy transfer , doping , photoluminescence , photochemistry , atomic physics , optoelectronics , fluorescence , optics , thermoluminescence , chemistry , physics , chromatography
Mn 2+ ‐activated phosphors usually show green to red luminescence depending on the crystal field strength in the lattice. However, the severe intensity loss of Mn 2+ luminescence at elevated temperatures remains to be a serious problem. Here, the observation of zero‐thermal quenching of Mn 2+ red luminescence (λ em = 620 nm) up to 500 K in Eu 2+ , Mn 2+ ‐codoped BaMgP 2 O 7 is reported. This phenomenon arises from an efficient energy transfer from sensitizers Eu 2+ which, when singly doped, exhibits a substantial thermal‐induced enhancement of 5d→4f emission intensity at 400 nm, along with a high luminescence efficiency and a large UV light absorption capacity. The present results open up a new path to the exploration of Eu 2+ , Mn 2+ ‐codoped materials for thermally stable red phosphors.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom