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A zero-thermal-quenching phosphor
Yoon Hwa Kim ,
Paulraj Arunkumar ,
Bo Young Kim ,
Sanjith Unithrattil ,
Eden Kim ,
Su-Hyun Moon ,
Jae Young Hyun ,
Ki Hyun Kim ,
Donghwa Lee ,
Jong-Sook Lee ,
Won Bin Im
February 13 2017
February 13 2017
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Abstract
A blue-emitting phosphor without thermal quenching is reported. The emission losses at high temperatures are compensated by a counter mechanism, originating in energy transfer between electron–hole pairs and thermally activated defect levels.