A zero-thermal-quenching phosphor

Yoon Hwa Kim,^1, Paulraj Arunkumar,^1, Bo Young Kim,^1, Sanjith Unithrattil,^1, Eden Kim,^1, Su-Hyun Moon,^1, Jae Young Hyun,^{1, 2,} Ki Hyun Kim,^{2, n1}Donghwa Lee,^1, Jong-Sook Lee^1, & Won Bin Im^1,

Nature Materials  Volume: 16, Pages: 543–550 Year published: (2017)

DOI:10.1038/nmat4843
本文报道一个blue-emitting Na_3–2xSc₂(PO₄)₃:xEu²⁺ phosphor (λ_em = 453 nm) that does not exhibit thermal quenching even up to 200 °C.

未发生热淬灭的原因解释为The findings are explained by polymorphic modification and possible energy transfer from electron–hole pairs at the thermally activated defect levels to the Eu²⁺ 5d-band with increasing temperature。

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