Cited 13 time in webofscience Cited 12 time in scopus

High-Performance Photovoltaic Effect with Electrically Balanced Charge Carriers in Black Phosphorus and WS2 Heterojunction

Title
High-Performance Photovoltaic Effect with Electrically Balanced Charge Carriers in Black Phosphorus and WS2 Heterojunction
Authors
Kwak, Do-HyunRa, Hyun-SooJeong, Min-HyeLee, A-YoungLee, Jong-Soo
DGIST Authors
Kwak, Do-Hyun; Ra, Hyun-Soo; Jeong, Min-Hye; Lee, A-Young; Lee, Jong-Soo
Issue Date
2018-09
Citation
Advanced Materials Interfaces, 5(18)
Type
Article
Article Type
Article
Author Keywords
black phosphoruscharge carrier balanceheterojunction p-n diodesphotovoltaic effectstungsten disulfide
Keywords
FIELD-EFFECT TRANSISTORSDER-WAALS HETEROSTRUCTURESP-N HETEROJUNCTIONSGATE-TUNABLE DIODEJUNCTIONSPASSIVATIONTRANSPORTGRAPHENE
ISSN
2196-7350
Abstract
2D van der Waals materials are promising for various electronic and optoelectronic devices because of their thickness-dependent mobility and tunable bandgap. Recently, heterojunction structures based on 2D van der Waals materials have exhibited their potential for photovoltaic applications as ultrathin p–n diodes. In this study, the photovoltaic effect of a multilayer black phosphorus (BP)/WS2 p–n heterojunction device is demonstrated under the 405 nm laser illumination and the AM 1.5 solar spectrum. The diode-like characteristics and photovoltaic effect rely on balance between charge carriers in the heterojunction device, by showing the highest performance at the balance position. The gate-tunable heterojunction device shows a high current rectification of 103 and an external quantum efficiency of 4.4% under the 405 nm laser illumination, and a photovoltaic efficiency of 4.6% under the AM 1.5 solar spectrum. This work suggests that the balancing of the charge carriers in the 2D heterojunction p–n diode is highly prioritized to fabricate high-performance photovoltaic device. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
URI
http://hdl.handle.net/20.500.11750/9335
DOI
10.1002/admi.201800671
Publisher
Wiley-VCH Verlag
Related Researcher
  • Author Lee, Jong-Soo MNEDL(Multifunctional Nanomaterials & Energy Devices Lab)
  • Research Interests Design of new type of multifunctional nanoparticles for energy-related devices; 다기능성 나노재료; 무기물 태양전지; 열전소자
Files:
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Collection:
Department of Energy Science and EngineeringMNEDL(Multifunctional Nanomaterials & Energy Devices Lab)1. Journal Articles


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