Author(s): Hou, SJ (Hou, Shijun); Guo, ZF (Guo, Zhengfeng); Yang, JH (Yang, Juehan); Liu, YY (Liu, Yue-Yang); Shen, WF (Shen, Wanfu); Hu, CG (Hu, Chunguang); Liu, SY (Liu, Shiyuan); Gu, HG (Gu, Honggang); Wei, ZM (Wei, Zhongming)

Source: SMALL Article Number: 2100457 DOI: 10.1002/smll.202100457 Early Access Date: APR 2021

Abstract: Birefringence and dichroism are very important properties in optical anisotropy. Understanding the intrinsic birefringence and dichroism of a material can provide great help to utilize its optical anisotropy. But the direct experimental investigation of birefringence in nanoscale materials is rarely reported. As typical anisotropic transition metals trichalcogenides (TMTCs) materials with quasi-1D structure, TiS3 and ZrS3 have attracted extensive attention due to their special crystal structure and optical anisotropy characteristics. Here, the optical anisotropy properties such as birefringence and dichroism of two kinds of quasi-1D TMTCs, TiS3 and ZrS3, are theoretically and experimentally studied. In experimental results, the anisotropic refraction and anisotropic reflection of TiS3 and ZrS3 are studied by polarization-resolved optical microscopy and azimuth-dependent reflectance difference microscopy, respectively. In addition, the birefringence and dichroism of ZrS3 nanoribbon in experiment are directly measured by spectrometric ellipsometry measurements, and a reasonable result is obtained. This work provides the basic optical anisotropy information of TiS3 and ZrS3. It lays a foundation for the further study of the optical anisotropy of these two materials and provides a feasible method for the study of birefringence and dichroism of other nanomaterials in the future.

Accession Number: WOS:000642340900001

PubMed ID: 33890405

Author Identifiers:

Author        Web of Science ResearcherID        ORCID Number

Guo, Zhengfeng                  0000-0002-5104-6215

wei, zhong ming                  0000-0002-6237-0993

ISSN: 1613-6810

eISSN: 1613-6829

Full Text: https://onlinelibrary.wiley.com/doi/10.1002/smll.202100457