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Title: Black phosphorus-based van der Waals heterostructures for mid-infrared light-emission applications
Authors: Zong, Xinrong
Hu, Huamin
Ouyang, Gang
Wang, Jingwei
Shi, Run
Zhang, Le
Zeng, Qingsheng
Zhu, Chao
Chen, Shouheng
Cheng, Chun
Wang, Bing
Zhang, Han
Liu, Zheng
Huang, Wei
Wang, Taihong
Wang, Lin
Chen, Xiaolong
Keywords: Engineering::Materials
Issue Date: 2020
Source: Zong, X., Hu, H., Ouyang, G., Wang, J., Shi, R., Zhang, L., Zeng, Q., Zhu, C., Chen, S., Cheng, C., Wang, B., Zhang, H., Liu, Z., Huang, W., Wang, T., Wang, L. & Chen, X. (2020). Black phosphorus-based van der Waals heterostructures for mid-infrared light-emission applications. Light: Science & Applications, 9(1).
Journal: Light: Science & Applications
Abstract: Mid-infrared (MIR) light-emitting devices play a key role in optical communications, thermal imaging, and material analysis applications. Two-dimensional (2D) materials offer a promising direction for next-generation MIR devices owing to their exotic optical properties, as well as the ultimate thickness limit. More importantly, van der Waals heterostructures-combining the best of various 2D materials at an artificial atomic level-provide many new possibilities for constructing MIR light-emitting devices of large tuneability and high integration. Here, we introduce a simple but novel van der Waals heterostructure for MIR light-emission applications built from thin-film BP and transition metal dichalcogenides (TMDCs), in which BP acts as an MIR light-emission layer. For BP-WSe2 heterostructures, an enhancement of ~200% in the photoluminescence intensities in the MIR region is observed, demonstrating highly efficient energy transfer in this heterostructure with type-I band alignment. For BP-MoS2 heterostructures, a room temperature MIR light-emitting diode (LED) is enabled through the formation of a vertical PN heterojunction at the interface. Our work reveals that the BP-TMDC heterostructure with efficient light emission in the MIR range, either optically or electrically activated, provides a promising platform for infrared light property studies and applications.
ISSN: 2095-5545
DOI: 10.1038/s41377-020-00356-x
Rights: © 2020 The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license,and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
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