Perpendicularly Reversed Polarization Sensitivity of Double-faced Photodetection based on Sb2Se3 Microbelt

Wan, Peng1; Jiang, Mingming1; Su, Longxing1,2; Xia, Sihao; Wei, Yun1; Xu, Tong1; Liu, Yang1; Shi, Daning1; Fang, Xiaosheng3; Kan, Caixia1

2022-08-01

10.1002/adfm.202207688

ADVANCED FUNCTIONAL MATERIALS   影响因子和分区

1616-301X

1616-3028

Low-dimensional polarization-sensitive photodetectors have captured ever-increasing attention due to their unique applications in navigation, optical switching, and communication. However, to date, the study of dimensionality-dependent polarization-sensitive photodetectors has not received much attention. Herein, a double-faced polarization-sensitive photodetector based on an individual high-quality Sb2Se3 microbelt is proposed, where both the wide and narrow side facets serve as irradiation targets. Polarization-sensitive measurements reveal the anisotropy in the photocurrents recorded parallel and perpendicular to the long axis of the Sb2Se3 microbelt. Strikingly, the single Sb2Se3 microbelt photodetector reveals the obvious perpendicular reversal with a 90 degrees angle on polarization sensitivity from the wide surface to the narrow surface. With decreasing inclination angle, the anisotropic ratio varies from 1.18 to 0.87 gradually. Interestingly, the photodetector can lose its polarization sensitivity at a particular inclination angle. Angle-resolved polarized Raman spectroscopy confirms the asymmetry and anisotropic character of the Sb2Se3 microbelt. The polarization sensitivity of the Sb2Se3 microbelt photodetectors originates from the optical anisotropy induced by the crystal structure anisotropy, rather than one-dimensional geometry morphological anisotropy. The use of an anisotropic Sb2Se3 microbelt in double-faced polarization-sensitive photodetection may contribute to new functionality in innovative optoelectronic applications.

anisotropic properties double-faced photodetection near-infrared polarization detection perpendicular reversal

SCI ; EI

英语

NI论文

其他

National Natural Science Foundation of China["11974182","11874220"] ; Funding for Outstanding Doctoral Dissertation in NUAA[BCXJ22-14]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000845081100001

WILEY-V C H VERLAG GMBH

20223512641716

Crystal structure ; Infrared devices ; Optical communication ; Photodetectors ; Photons ; Polarization ; Selenium compounds

Optical Communication Systems:717.1 ; Atomic and Molecular Physics:931.3 ; Crystal Lattice:933.1.1

MATERIALS SCIENCE

Web of Science

1.Nanjing Univ Aeronaut & Astronaut, MIIT Key Lab Aerosp Informat Mat & Phys, Key Lab Intelligent Nano Mat & Devices, Nanjing 211106, Peoples R China
2.Southern Univ Sci & Technol, Sch Microelect, Shenzhen 518055, Peoples R China
3.Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China

Wan, Peng,Jiang, Mingming,Su, Longxing,et al. Perpendicularly Reversed Polarization Sensitivity of Double-faced Photodetection based on Sb2Se3 Microbelt[J]. ADVANCED FUNCTIONAL MATERIALS,2022.

Wan, Peng.,Jiang, Mingming.,Su, Longxing.,Xia, Sihao.,Wei, Yun.,...&Kan, Caixia.(2022).Perpendicularly Reversed Polarization Sensitivity of Double-faced Photodetection based on Sb2Se3 Microbelt.ADVANCED FUNCTIONAL MATERIALS.

Wan, Peng,et al."Perpendicularly Reversed Polarization Sensitivity of Double-faced Photodetection based on Sb2Se3 Microbelt".ADVANCED FUNCTIONAL MATERIALS (2022).