Lattice-mismatch-free construction of III-V/chalcogenide core-shell heterostructure nanowires

Fengjing Liu, Xinming Zhuang, Mingxu Wang, Dongqing Qi, Shengpan Dong, SenPo Yip, Yanxue Yin, Jie Zhang, Zixu Sa, Kepeng Song (), Longbing He, Yang Tan, You Meng, Johnny C. Ho (), Lei Liao, Feng Chen and Zai-xing Yang ()
Additional contact information
Fengjing Liu: Shandong University
Xinming Zhuang: Shandong University
Mingxu Wang: Shandong University
Dongqing Qi: Shandong University
Shengpan Dong: Southeast University
SenPo Yip: Kyushu University
Yanxue Yin: Shandong University
Jie Zhang: Shandong University
Zixu Sa: Shandong University
Kepeng Song: Shandong University
Longbing He: Southeast University
Yang Tan: Shandong University
You Meng: City University of Hong Kong
Johnny C. Ho: Kyushu University
Lei Liao: Hunan University
Feng Chen: Shandong University
Zai-xing Yang: Shandong University

Nature Communications, 2023, vol. 14, issue 1, 1-10

Abstract: Abstract Growing high-quality core-shell heterostructure nanowires is still challenging due to the lattice mismatch issue at the radial interface. Herein, a versatile strategy is exploited for the lattice-mismatch-free construction of III-V/chalcogenide core-shell heterostructure nanowires by simply utilizing the surfactant and amorphous natures of chalcogenide semiconductors. Specifically, a variety of III-V/chalcogenide core-shell heterostructure nanowires are successfully constructed with controlled shell thicknesses, compositions, and smooth surfaces. Due to the conformal properties of obtained heterostructure nanowires, the wavelength-dependent bi-directional photoresponse and visible light-assisted infrared photodetection are realized in the type-I GaSb/GeS core-shell heterostructure nanowires. Also, the enhanced infrared photodetection is found in the type-II InGaAs/GeS core-shell heterostructure nanowires compared with the pristine InGaAs nanowires, in which both responsivity and detectivity are improved by more than 2 orders of magnitude. Evidently, this work paves the way for the lattice-mismatch-free construction of core-shell heterostructure nanowires by chemical vapor deposition for next-generation high-performance nanowire optoelectronics.

Date: 2023
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DOI: 10.1038/s41467-023-43323-x

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