Electronic and optical properties of beryllium sulfide monolayer: Under stress and strain conditions

被引：15

作者：

Jalilian, Jaafar ^{[1
]}

Safari, Mandana ^{[1
]}

机构：

[1] Islamic Azad Univ, Kermanshah Branch, Young Researchers & Elite Club, Kermanshah, Iran

来源：

PHYSICS LETTERS A | 2016年 / 380卷 / 42期

关键词：

Beryllium sulfide nanosheet; Optical properties; Tuning band gap; Stress and strain; Density functional theory; ZNO MONOLAYER; BORON-NITRIDE; NANOSHEET; GRAPHENE; MOS2; TRANSITION; CRYSTAL; LAYER; GAS;

D O I：

10.1016/j.physleta.2016.08.037

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Electronic and optical properties of two-dimensional graphene-like structure of beryllium sulfide (BeS) have been studied in the framework of the density functional theory. Different values of stress and strain are exerted for tuning electronic and optical parameters. The electronic results show that both biaxial stress and strain effects cause band gap reduction with different rates. Also, we have red and blue shifts in the optical absorption spectrum peaks by applying strain and stress, respectively. Our results express that BeS monolayer can be the promising candidate for the future nano-devices. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：3546 / 3552

页数：7

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