Near-Infrared Self-Powered Linearly Polarized Photodetection and Digital Incoherent Holography Using WSe2/ReSe2 van der Waals Heterostructure
- 22 October 2021
- journal article
- research article
- Published by American Chemical Society (ACS) in ACS Nano
- Vol. 15 (11), 17917-17925
- https://doi.org/10.1021/acsnano.1c06234
Abstract
Polarization-sensitive photodetection has attracted considerable attention as an emerging technology for future optoelectronic applications such as three-dimensional (3D) imaging, quantum optics, and encryption. However, traditional photodetectors based on Si or III–V InGaAs semiconductors cannot directly detect polarized light without additional optical components. Herein, we demonstrate a self-powered linear-polarization-sensitive near-infrared (NIR) photodetector using a two-dimensional WSe2/ReSe2 van der Waals heterostructure. The WSe2/ReSe2 heterojunction photodiode with semivertical geometry exhibits excellent performance: an ideality factor of 1.67, a broad spectral photoresponse of 405–980 nm with a significant photovoltaic effect, outstanding linearity with a linear dynamic range wider than 100 dB, and rapid photoswitching behavior with a cutoff frequency up to 100 kHz. Strongly polarized excitonic transitions around the band edge in ReSe2 lead to significant 980 nm NIR linear-polarization-dependent photocurrent. This linear polarization sensitivity remains stable even after exposure to air for longer than five months. Furthermore, by leveraging the NIR (980 nm)-selective linear polarization detection of this photodiode under photovoltaic operation, we demonstrate digital incoherent holographic 3D imaging.Keywords
Funding Information
- National Research Foundation of Korea (2017R1A5A1014862, 2020R1A6A3A01100165)
- Ministry of Culture, Sports and Tourism (R2017060005, R2020040080)
- Korea Institute of Science and Technology (2E31011, 2E31012)
This publication has 44 references indexed in Scilit:
- Highly anisotropic and robust excitons in monolayer black phosphorusNature Nanotechnology, 2015
- Atomically thin p–n junctions with van der Waals heterointerfacesNature Nanotechnology, 2014
- Photovoltaic Effect in an Electrically Tunable van der Waals HeterojunctionNano Letters, 2014
- High-mobility transport anisotropy and linear dichroism in few-layer black phosphorusNature Communications, 2014
- Rediscovering black phosphorus as an anisotropic layered material for optoelectronics and electronicsNature Communications, 2014
- Van der Waals heterostructuresNature, 2013
- Scan-free three-dimensional imagingNature Photonics, 2008
- Non-scanning motionless fluorescence three-dimensional holographic microscopyNature Photonics, 2008
- Highly Polarized Photoluminescence and Photodetection from Single Indium Phosphide NanowiresScience, 2001
- Phase-shifting digital holographyOptics Letters, 1997