Quasiparticle and optical properties of strained stanene and stanane
Artikel i vetenskaplig tidskrift, 2017

Quasiparticle band structures and optical properties of two dimensional stanene and stanane (fully hydrogenated stanene) are studied by the GW and GW plus Bethe-Salpeter equation (GW-BSE) approaches, with inclusion of the spin-orbit coupling (SOC). The SOC effect is significant for the electronic and optical properties in both stanene and stanane, compared with their group IV-enes and IV-anes counterparts. Stanene is a semiconductor with a quasiparticle band gap of 0.10 eV. Stanane has a sizable band gap of 1.63 eV and strongly binding exciton with binding energy of 0.10 eV. Under strain, the quasiparticle band gap and optical spectrum of both stanene and stanane are tunable.

band-structure

topological insulators

external strain

electronic-properties

semiconductors

silicene

2-dimensional stanene

gas

graphene

greens-function

Författare

P. F. Lu

Beijing University of Posts and Telecommunications (BUPT)

Chinese Academy of Sciences

L. Wu

Beijing University of Posts and Telecommunications (BUPT)

Chuanghua Yang

Shaanxi University of Technology

D. Liang

Beijing University of Posts and Telecommunications (BUPT)

R. G. Quhe

Beijing University of Posts and Telecommunications (BUPT)

P. F. Guan

Beijing Computational Science Research Center

Shu Min Wang

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Scientific Reports

2045-2322 (ISSN)

Vol. 7 1 8- 3912

Ämneskategorier

Atom- och molekylfysik och optik

Nanoteknik

DOI

10.1038/s41598-017-04210-w

Mer information

Senast uppdaterat

2018-05-23