Polarity reversal and strain modulation of Janus MoSSe/GaN polar semiconductor heterostructures

Kong, Delin; Tian, Feng; Xu, Yingying; Zhu, Shaoqun; Yu, Zetong; Xiong, Lefeng; Li, Peipei; Wei, Huiyun; Zheng, Xinhe; Peng, Mingzeng

doi:10.1039/d3cp02137h

Phys. Chem. Chem. Phys.

2023

DOI: 10.1039/d3cp02137h

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Polarity reversal and strain modulation of Janus MoSSe/GaN polar semiconductor heterostructures

Delin Kong,

Feng Tian,

Yingying Xu

et al.

Abstract: 2D/3D Janus TMDs/III-nitrides polar heterointerfaces enable polarity manipulation to modulate their structural stability, electrostatic potential, charge transfer, and electronic band-structures for developing novel multifunctional applications.

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Cited by 4 publications

References 49 publications

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Unveiling cutting-edge progress in the fundamentals of MXene: Synthesis strategies, energy and bio-environmental applications

Gul,

Sayed,

Saeed

et al. 2024

Coordination Chemistry Reviews

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Unveiling cutting-edge progress in the fundamentals of MXene: Synthesis strategies, energy and bio-environmental applications

Gul,

Sayed,

Saeed

et al. 2024

Coordination Chemistry Reviews

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Exploiting III-nitride surface polarity to facilitate the controllable formation of Janus MoSSe architectures

Kong,

Li,

Cui

et al. 2025

Surfaces and Interfaces

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Manipulating Ferroelectric α-In₂Se₃/GaN Dipole Interactions by Polarization Engineering

Kong,

Tian,

et al. 2024

ACS Appl. Electron. Mater.

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By utilizing the dipole interactions, polar heterostructures are developing toward two-dimensional/three-dimensional (2D/3D) hybrid dimensions for unique phenomena such as polarization-induced electric field, charge separation, bandstructure modification, etc. In this study, we have constructed 2D/3D α-In 2 Se 3 /GaN polar heterostructures by stacking 2D α-In 2 Se 3 and 3D wurtzite GaN semiconductors with distinct polarity configurations. Upon GaN contacting with α-In 2 Se 3 , the structural stability demonstrates a direct dependence on the polarity assembly, as evidenced by the change of binding energy from −1.39/−1.83 eV in Ga-polarity to −2.99/−1.95 eV in N-polarity. In particular, the polarity inversion of GaN not only dictates the direction of charge transfer but also increases the electrostatic potential differences from 2.92/1.84 eV in N-polarity to 3.65/5.10 eV in Ga-polarity. Moreover, the interfacial polarization and electronic band profiles of α-In 2 Se 3 /GaN have been further adjusted by applying the external electric field. It is found that the interfacial dipole interaction plays a crucial role in the external electric field modulation, with a direct correlation to the charge distribution at α-In 2 Se 3 /GaN polar heterointerfaces. By sweeping the external electric field from −0.4 to 0.4 V/Å, the α-In 2 Se 3 (↑)/GaN(↑) and α-In 2 Se 3 (↓)/GaN(↑) polar heterostructures maintain the type-III electronic band profiles, attributed to the electrostatic shielding effect of high-density charge carriers. However, the band alignments of α-In 2 Se 3 (↑)/GaN(↓) and α-In 2 Se 3 (↓)/GaN(↓) polar heterostructures have been extensively transformed from type-III, to type-II, and then to type-I. Our findings demonstrate the effective capability of polarity inversion and external electric field on manipulating dipole interactions of 2D/3D polar heterostructures, paving the way for the innovative design and optimization of next-generation optoelectronics, information memory, and neural computing applications.

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Polarity reversal and strain modulation of Janus MoSSe/GaN polar semiconductor heterostructures

Abstract: 2D/3D Janus TMDs/III-nitrides polar heterointerfaces enable polarity manipulation to modulate their structural stability, electrostatic potential, charge transfer, and electronic band-structures for developing novel multifunctional applications.

Cited by 4 publications

References 49 publications

Unveiling cutting-edge progress in the fundamentals of MXene: Synthesis strategies, energy and bio-environmental applications

Unveiling cutting-edge progress in the fundamentals of MXene: Synthesis strategies, energy and bio-environmental applications

Exploiting III-nitride surface polarity to facilitate the controllable formation of Janus MoSSe architectures

Manipulating Ferroelectric α-In₂Se₃/GaN Dipole Interactions by Polarization Engineering

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Polarity reversal and strain modulation of Janus MoSSe/GaN polar semiconductor heterostructures

Abstract: 2D/3D Janus TMDs/III-nitrides polar heterointerfaces enable polarity manipulation to modulate their structural stability, electrostatic potential, charge transfer, and electronic band-structures for developing novel multifunctional applications.

Cited by 4 publications

References 49 publications

Unveiling cutting-edge progress in the fundamentals of MXene: Synthesis strategies, energy and bio-environmental applications

Unveiling cutting-edge progress in the fundamentals of MXene: Synthesis strategies, energy and bio-environmental applications

Exploiting III-nitride surface polarity to facilitate the controllable formation of Janus MoSSe architectures

Manipulating Ferroelectric α-In2Se3/GaN Dipole Interactions by Polarization Engineering

Contact Info

Product

Resources

About

Manipulating Ferroelectric α-In₂Se₃/GaN Dipole Interactions by Polarization Engineering