Prediction of intrinsic two-dimensional ferroelectrics in In2Se3 and other III2-VI3 van der Waals materials
10.1038/ncomms14956
Crossref journal-article
Springer Science and Business Media LLC
Nature Communications (297)
Abstract

AbstractInterest in two-dimensional (2D) van der Waals materials has grown rapidly across multiple scientific and engineering disciplines in recent years. However, ferroelectricity, the presence of a spontaneous electric polarization, which is important in many practical applications, has rarely been reported in such materials so far. Here we employ first-principles calculations to discover a branch of the 2D materials family, based on In2Se3 and other III2-VI3 van der Waals materials, that exhibits room-temperature ferroelectricity with reversible spontaneous electric polarization in both out-of-plane and in-plane orientations. The device potential of these 2D ferroelectric materials is further demonstrated using the examples of van der Waals heterostructures of In2Se3/graphene, exhibiting a tunable Schottky barrier, and In2Se3/WSe2, showing a significant band gap reduction in the combined system. These findings promise to substantially broaden the tunability of van der Waals heterostructures for a wide range of applications.

Bibliography

Ding, W., Zhu, J., Wang, Z., Gao, Y., Xiao, D., Gu, Y., Zhang, Z., & Zhu, W. (2017). Prediction of intrinsic two-dimensional ferroelectrics in In2Se3 and other III2-VI3 van der Waals materials. Nature Communications, 8(1).

Authors 8
  1. Wenjun Ding (first)
  2. Jianbao Zhu (additional)
  3. Zhe Wang (additional)
  4. Yanfei Gao (additional)
  5. Di Xiao (additional)
  6. Yi Gu (additional)
  7. Zhenyu Zhang (additional)
  8. Wenguang Zhu (additional)
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Dates
Type When
Created 8 years, 4 months ago (April 7, 2017, 5:38 a.m.)
Deposited 2 years, 7 months ago (Dec. 22, 2022, 7:28 p.m.)
Indexed 1 hour, 2 minutes ago (Aug. 20, 2025, 10:22 p.m.)
Issued 8 years, 4 months ago (April 7, 2017)
Published 8 years, 4 months ago (April 7, 2017)
Published Online 8 years, 4 months ago (April 7, 2017)
Funders 0

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@article{Ding_2017, title={Prediction of intrinsic two-dimensional ferroelectrics in In2Se3 and other III2-VI3 van der Waals materials}, volume={8}, ISSN={2041-1723}, url={http://dx.doi.org/10.1038/ncomms14956}, DOI={10.1038/ncomms14956}, number={1}, journal={Nature Communications}, publisher={Springer Science and Business Media LLC}, author={Ding, Wenjun and Zhu, Jianbao and Wang, Zhe and Gao, Yanfei and Xiao, Di and Gu, Yi and Zhang, Zhenyu and Zhu, Wenguang}, year={2017}, month=apr }