Rare-earth defects in GaN: A systematic investigation of the lanthanide series
Rare-earth defects in GaN: A systematic investigation of the lanthanide series
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GaN 中的稀土缺陷:对镧系元素的系统研究
DOI:
10.1103/physrevmaterials.6.044601
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发表时间:
2022
影响因子:
3.4
通讯作者:
Hoang, Khang
中科院分区:
文献类型:
--
作者:
Hoang, Khang
Rare-earth doped GaN is of interest for optoelectronics and spintronics and potentially for quantum applications. A fundamental understanding of the interaction between RE dopants and the semiconductor host is key to realizing the material's full potential. This paper reports an investigation of lanthanide () defects in GaN using hybrid density-functional defect calculations. We find that all thedopants incorporated at the Ga lattice site,(= La–Lu), are stable as trivalent ions, but Eu and Yb can also be stabilized as divalent and Ce, Pr, and Tb as tetravalent. The location of-related defect levels and thestates in the energy spectrum of the host material is determined from first principles. We elucidate the interplay between defect formation and electronic structure, including the–N interaction, and the effect of doping on the local lattice environment. Optical properties are investigated by considering possible defect-to-band and band-to-defect transitions involvingdefects with in-gap energy levels, including broad charge-transfer transitions. These defects can also act as carrier traps and mediate energy transfer from the host into the-electron core of theion which leads to sharp intra-luminescence.
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DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
K. Hoang
通讯作者:
K. Hoang
影响因子:
44.1
作者:
Freysoldt, Christoph;Grabowski, Blazej;Van de Walle, Chris G.
通讯作者:
Van de Walle, Chris G.
影响因子:
3.7
作者:
Shinya Higuchi;A. Ishizumi;J. Sawahata;K. Akimoto;Y. Kanemitsu
通讯作者:
Shinya Higuchi;A. Ishizumi;J. Sawahata;K. Akimoto;Y. Kanemitsu
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
E. Nyein;U. Hommerich;J. Heikenfeld;Dong‐Seon Lee;A. Steckl;J. Zavada
通讯作者:
J. Zavada
DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
S. Morishima;T. Maruyama;M. Tanaka;K. Akimoto
通讯作者:
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