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Title: PdPSe : component-fusion-based topology designer of two-dimensional semiconductor
Authors: Duan, Ruihuan
Zhu, Chao
Zeng, Qingsheng
Wang, Xiaowei
Gao, Yang
Deng, Ya
He, Yanchao
Yang, Jiefu
Zhou, Jiadong
Xu, Manzhang
Liu, Zheng
Keywords: Engineering::Materials
Issue Date: 2021
Source: Duan, R., Zhu, C., Zeng, Q., Wang, X., Gao, Y., Deng, Y., He, Y., Yang, J., Zhou, J., Xu, M. & Liu, Z. (2021). PdPSe : component-fusion-based topology designer of two-dimensional semiconductor. Advanced Functional Materials, 31(35), 2102943-.
Project: NRF-CRP22-2019-0007
Journal: Advanced Functional Materials
Abstract: Novel 2D semiconductors play an increasingly important role in modern nanoelectronics and optoelectronics. Herein, a novel topology designer based on component fusion is introduced, featured by the submolecular component integration and properties inheritance. As expected, a new air-stable 2D semiconductor PdPSe with a tailored puckered structure is successfully designed and synthesized via this method. Notably, the monolayer of PdPSe is constructed by two sublayers via PP bonds, different from 2D typical transition metal materials with sandwich-structured monolayers. With the expected orthorhombic symmetry and intralayer puckering, PdPSe displays a strong Raman anisotropy. The field-effect transistors and photodetectors based on few-layer PdPSe demonstrate good electronic properties with high carrier mobility of ≈35 cm2 V−1 s−1 and a high on/off ratio of 106, as well as excellent optoelectronic performance, including high photoresponsivity, photogain, and detectivity with values up to 1.06 × 105 A W−1, 2.47 × 107%, and 4.84 × 1010 Jones, respectively. These results make PdPSe a promising air-stable 2D semiconductor for various electronic and optoelectronic applications. This work suggests that the component-fusion-based topology designer is a novel approach to tailor 2D materials with expected structures and interesting properties.
ISSN: 1616-301X
DOI: 10.1002/adfm.202102943
Rights: © 2021 Wiley-VCH GmbH. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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