Plasmon-Enhanced Photovoltaic Characteristics of Black Phosphorus-MoS<sub>2</sub> Heterojunction

Hou Chaojian; Li Bo; Li Qingwei; Yang Lijun; Wang Yang; Yang Zhan; Dong Lixin

doi:10.1109/OJNANO.2021.3062495

IEEE Open Journal of Nanotechnology (Jan 2021)

Plasmon-Enhanced Photovoltaic Characteristics of Black Phosphorus-MoS<sub>2</sub> Heterojunction

Hou Chaojian,
Li Bo,
Li Qingwei,
Yang Lijun,
Wang Yang,
Yang Zhan,
Dong Lixin

Affiliations

Hou Chaojian: Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
Li Bo: School of Mechatronics Engineering, Soochow University, Soochow, China
Li Qingwei: Key Laboratory of Microsystems and Microstructures Manufacturing, Ministry of Education, and School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, China
Yang Lijun: Department of Physics and Astronomy, Michigan State University, East Lansing, MI, USA
Wang Yang: Department of Physics and Astronomy, Michigan State University, East Lansing, MI, USA
Yang Zhan: ORCiD; Beijing Advanced Innovation Center for Intelligent Robots and Systems, Beijing Institute of Technology, Beijing, China
Dong Lixin: ORCiD; Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China

DOI: https://doi.org/10.1109/OJNANO.2021.3062495
Journal volume & issue: Vol. 2
pp. 41 – 51

Abstract

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Van der Waals p-n heterojunctions, consist of atomically thin two-dimensional (2D) layer semiconductors, have opened a promising avenue for the realization of ultrathin and ultralight photovoltaic solar cells. This feature enables them particularly be suitable as the micro/nanoscale solar energy-conversion units integrated in wireless power supply micro/nano-systems. However, solar energy harvest in these heterojunctions is hindered by inherent weak interlayer interaction at such ultrathin thickness. Herein, a novel integrated strategy by embedding metallic plasmonic pentamers optical nano-antenna array (ONAA) onto overlap region of black phosphorus-molybdenum disulfide (BP-MoS2) p-n heterojunction is firstly exploited under both a near-infrared laser (λ = 830 nm) and standardized AM1.5G solar irradiation. Results show that profiting from plasmon-induced “hot” electrons and thermal field generating from gigantic near-field enhancement in 15 nm-ultrashort nanogap ONAAs and high intrinsic build-in field in atomically overlap region, this integrated configuration displays enhanced photovoltaic properties. Maximum short-circuits current (Isc = 0.53 μA) and open circuit voltage (Voc = 0.2 V) had been attained. Additional fill factor of 14% and double power conversion efficiencies amplification are measured via comparison of device without/with ONAAs. These findings strongly demonstrate this reliable enhancement strategy with integration of plasmonic physics into 2D heterojunctions for realizing energy harvesting unit in the wireless power supply micro/nano-systems.

Published in IEEE Open Journal of Nanotechnology

ISSN: 2644-1292 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Chemical technology; Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=8782713

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