Unveiling Planar Defects in Hexagonal Group IV Materials.
Unveiling Planar Defects in Hexagonal Group IV Materials.
复制标题
揭示了第四族材料中的平面缺陷。
DOI:
10.1021/acs.nanolett.1c00683
复制
发表时间:
2021-04-28
期刊:
影响因子:
10.8
通讯作者:
Verheijen MA
中科院分区:
文献类型:
--
作者:
Fadaly EMT;Marzegalli A;Ren Y;Sun L;Dijkstra A;de Matteis D;Scalise E;Sarikov A;De Luca M;Rurali R;Zardo I;Haverkort JEM;Botti S;Miglio L;Bakkers EPAM;Verheijen MA
Recently synthesized hexagonal group IV materials are a promising platform to realize efficient light emission that is closely integrated with electronics. A high crystal quality is essential to assess the intrinsic electronic and optical properties of these materials unaffected by structural defects. Here, we identify a previously unknown partial planar defect in materials with a type I3 basal stacking fault and investigate its structural and electronic properties. Electron microscopy and atomistic modeling are used to reconstruct and visualize this stacking fault and its terminating dislocations in the crystal. From band structure calculations coupled to photoluminescence measurements, we conclude that the I3 defect does not create states within the hex-Ge and hex-Si band gap. Therefore, the defect is not detrimental to the optoelectronic properties of the hex-SiGe materials family. Finally, highlighting the properties of this defect can be of great interest to the community of hex-III-Ns, where this defect is also present.
登录
查看更多内容
影响因子:
10.8
作者:
Hauge, Hakon Ikaros T.;Verheijen, Marcel A.;Bakkers, Erik P. A. M.
通讯作者:
Bakkers, Erik P. A. M.
影响因子:
3.7
作者:
Stampfl, C;Van de Walle, CG
通讯作者:
Van de Walle, CG
影响因子:
10.8
作者:
Conesa-Boj, S.;Hauge, H. I. T.;Fontcuberta i Morral, A.
通讯作者:
Fontcuberta i Morral, A.
影响因子:
10.8
作者:
Fasolato, Claudia;De Luca, Marta;Zardo, Ilaria
通讯作者:
Zardo, Ilaria
影响因子:
4.6
作者:
Qiu Y;Bender H;Richard O;Kim MS;Van Besien E;Vos I;de Potter de ten Broeck M;Mocuta D;Vandervorst W
通讯作者:
Vandervorst W