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Giant piezoelectricity of monolayer group IV monochalcogenides: SnSe, SnS, GeSe, and GeS
Open accessAbstract
We predict enormous, anisotropic piezoelectric effects in intrinsic monolayer group IV monochalcogenides (MX, M=Sn or Ge, X=Se or S), including SnSe, SnS, GeSe, and GeS. Using first-principle simulations based on the modern theory of polarization, we find that their piezoelectric coefficients are about one to two orders of magnitude larger than those of other 2D materials, such as MoS2 and GaSe, and bulk quartz and AlN which are widely used in industry. This enhancement is a result of the unique “puckered” C2v symmetry and electronic structure of monolayer group IV monochalcogenides. Given the achieved experimental advances in the fabrication of monolayers, their flexible character, and ability to withstand enormous strain, these 2D structures with giant piezoelectric effects may be promising for a broad range of applications such as nano-sized sensors, piezotronics, and energy harvesting in portable electronic devices.
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Piezoelectricity of single-atomic-layer MoS2 for energy conversion and piezotronics
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Emerging in‐plane anisotropic two‐dimensional materials
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Topology-Scaling Identification of Layered Solids and Stable Exfoliated 2D Materials
Ashton, M., Paul, J., Sinnott, S. B., & Hennig, R. G. (2017) · Physical Review Letters · doi:10.1103/physrevlett.118.106101 · Cited by 359
Black phosphorus and its isoelectronic materials
Xia, F., Wang, H., Hwang, J. C. M., Neto, A. H. C., & Yang, L. (2019) · Nature Reviews Physics · doi:10.1038/s42254-019-0043-5 · Cited by 322
Self-citationTunable Optical Properties of 2D Materials and Their Applications
Ma, Q., Ren, G., Xu, K., & Ou, J. Z. (2021) · Advanced Optical Materials · doi:10.1002/adom.202001313 · Cited by 269
Metadata
- Authors
- Fei, R., Li, W., Li, J., & Yang, L.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2015-10-26
- Volume
- 107
- Issue
- 17
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W1949490578
- Cited by
- 695
- References
- 6
- FWCI
- 21.18
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Fei, R., Li, W., Li, J., & Yang, L. (2015). Giant piezoelectricity of monolayer group IV monochalcogenides: SnSe, SnS, GeSe, and GeS. Applied Physics Letters. https://doi.org/10.1063/1.4934750
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