@article{41ff7da2a45a4482a28c22d8c2be70b0,
title = "A first-principles study of strain tuned optical properties in monolayer tellurium",
abstract = "First-principles calculations are employed to study the optical properties of monolayer Te tuned by biaxial strain. Our results demonstrate that monolayer Te has strong absorption in the visible and ultraviolet regions, and that a structural transition occurs between the α-phase and the β-phase under certain strain. In addition, there is significant optical anisotropy in α- and β-Te, while γ-Te shows isotropic characteristics due to their different structural properties. Furthermore, strain has a significant impact on the optical properties. With increasing strain, the real and imaginary parts of the dielectric function exhibit redshift. In addition, the absorption spectrum is more likely to be excited under compressive strain rather than tensile strain in α- and β-Te, while only slight differences are induced in γ-Te. These findings can not only enhance the understanding of two-dimensional tellurium, but also provide an effective way to tune the optical properties for potential application in optoelectronic devices.",
author = "Jinjin Wang and Yanrong Guo and Hong Shen and Chen, {Yu Yo} and Rongjun Zhang and Yuxiang Zheng and Liangyao Chen and Songyou Wang and Yu Jia and Chen, {Hong Yi} and Su, {Wan Sheng}",
note = "Funding Information: W.-S. Su would like to thank the Ministry of Science and Technology for nancially supporting this research under contract no. MOST-108-2112-M-979-001 and MOST-108-2623-E-979-001-NU. Support from the National Centers for Theoretical Sciences and High-performance Computing of Taiwan in providing signicant computing resources to facilitate this research is also gratefully acknowledged. Work at the Fudan University was supported by the key projects of basic research of Shanghai Municipal Science and Technology Commission (no. 18JC1411500), the National Natural Science Foundation of China (grant no. 11374055 and 61427815), CIOMP-Fudan University joint fund (no. FC2017-001), and the Fudan High-end Computing Center. Publisher Copyright: This journal is {\textcopyright} The Royal Society of Chemistry.",
year = "2019",
doi = "10.1039/c9ra08515g",
language = "English",
volume = "9",
pages = "41703--41708",
journal = "RSC Advances",
issn = "2046-2069",
publisher = "Royal Society of Chemistry",
number = "71",
}