Back to Search Start Over

Highly in-plane anisotropic 2D ReSe2 for polarization-sensitive photodetectors.

Authors :
Song, Shuang
Zhang, Guoping
Qiao, Jie
Chen, Bingxu
Shen, Mengyan
Yuan, Xiaocong
Somekh, Michael G.
Feng, Fu
Source :
Physica B. Aug2023, Vol. 663, pN.PAG-N.PAG. 1p.
Publication Year :
2023

Abstract

Here we report a new member of in-plane anisotropic 2D materials Rhenium Diselenide (ReSe 2) which holds a stable distorted 1 T' phase with its relatively narrow bandgap to explore the in-plane anisotropic structural, electrical, and optical properties. The proposed polarization-sensitive photodetectors based on few-layer ReSe 2 provides highly anisotropic photodetection behavior with linearly dichroic ratio up to ≈2.62 under 808 nm illumination. We measured carrier transport in space and time by mapping carrier density in a ReSe 2 plate using transient absorption microscopy. These results directly determined the carrier diffusion coefficients of about 4100 cm2 s-1 and 2900 cm2 s-1 along the armchair and zigzag directions, respectively, providing fundamental parameters to better understand the anisotropy of ReSe 2 and promote future 2D optoelectronic applications in polarization-sensitive detection. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
09214526
Volume :
663
Database :
Academic Search Index
Journal :
Physica B
Publication Type :
Academic Journal
Accession number :
164133977
Full Text :
https://doi.org/10.1016/j.physb.2023.415000