Valence State Control of Manganese in MgAl2O4:Mn4+ Phosphor by Varying the Al2O3 Crystal Form

Mn4+ activated red phosphor is one of the current research hot-spots in the field of white light emitting diodes (wLEDs). The shortest emission of Mn4+2E -> (4)A(2) transition in aluminate is 651 nm realized in MgAl2O4, but the doped manganese ions exists in multiple valence states (+2/+4/+3, etc...

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Veröffentlicht in:	Wu ji cai liao xue bao 2021-01, Vol.36 (5), p.513-520
Hauptverfasser:	Wang, Zhaowu, Ji, Haipeng, Wang, Feixiang, Hou, Xinghui, Yi, Shasha, Zhou, Ying, Chen, Deliang
Format:	Artikel
Sprache:	chi ; jpn
Schlagworte:	Aluminum oxide Doping Heat treatment Light emitting diodes Manganese ions Materials Science Materials Science, Ceramics Occupancy Phosphors Science & Technology Technology Tetrahedra Transitional aluminas Valence White light
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