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Unusual Deformation and Fracture in Gallium Telluride Multilayers

[Image: see text] The deformation and fracture mechanism of two-dimensional (2D) materials are still unclear and not thoroughly investigated. Given this, mechanical properties and mechanisms are explored on example of gallium telluride (GaTe), a promising 2D semiconductor with an ultrahigh photoresp...

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Autores principales: Zhou, Yan, Zhou, Shi, Ying, Penghua, Zhao, Qinghua, Xie, Yong, Gong, Mingming, Jiang, Pisu, Cai, Hui, Chen, Bin, Tongay, Sefaattin, Zhang, Jin, Jie, Wanqi, Wang, Tao, Tan, Pingheng, Liu, Dong, Kuball, Martin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9082608/
https://www.ncbi.nlm.nih.gov/pubmed/35467342
http://dx.doi.org/10.1021/acs.jpclett.2c00411
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author Zhou, Yan
Zhou, Shi
Ying, Penghua
Zhao, Qinghua
Xie, Yong
Gong, Mingming
Jiang, Pisu
Cai, Hui
Chen, Bin
Tongay, Sefaattin
Zhang, Jin
Jie, Wanqi
Wang, Tao
Tan, Pingheng
Liu, Dong
Kuball, Martin
author_facet Zhou, Yan
Zhou, Shi
Ying, Penghua
Zhao, Qinghua
Xie, Yong
Gong, Mingming
Jiang, Pisu
Cai, Hui
Chen, Bin
Tongay, Sefaattin
Zhang, Jin
Jie, Wanqi
Wang, Tao
Tan, Pingheng
Liu, Dong
Kuball, Martin
author_sort Zhou, Yan
collection PubMed
description [Image: see text] The deformation and fracture mechanism of two-dimensional (2D) materials are still unclear and not thoroughly investigated. Given this, mechanical properties and mechanisms are explored on example of gallium telluride (GaTe), a promising 2D semiconductor with an ultrahigh photoresponsivity and a high flexibility. Hereby, the mechanical properties of both substrate-supported and suspended GaTe multilayers were investigated through Berkovich-tip nanoindentation instead of the commonly used AFM-based nanoindentation method. An unusual concurrence of multiple pop-in and load-drop events in loading curve was observed. Theoretical calculations unveiled this concurrence originating from the interlayer-sliding mediated layers-by-layers fracture mechanism in GaTe multilayers. The van der Waals force dominated interlayer interactions between GaTe and substrates was revealed much stronger than that between GaTe interlayers, resulting in the easy sliding and fracture of multilayers within GaTe. This work introduces new insights into the deformation and fracture of GaTe and other 2D materials in flexible electronics applications.
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spelling pubmed-90826082022-05-10 Unusual Deformation and Fracture in Gallium Telluride Multilayers Zhou, Yan Zhou, Shi Ying, Penghua Zhao, Qinghua Xie, Yong Gong, Mingming Jiang, Pisu Cai, Hui Chen, Bin Tongay, Sefaattin Zhang, Jin Jie, Wanqi Wang, Tao Tan, Pingheng Liu, Dong Kuball, Martin J Phys Chem Lett [Image: see text] The deformation and fracture mechanism of two-dimensional (2D) materials are still unclear and not thoroughly investigated. Given this, mechanical properties and mechanisms are explored on example of gallium telluride (GaTe), a promising 2D semiconductor with an ultrahigh photoresponsivity and a high flexibility. Hereby, the mechanical properties of both substrate-supported and suspended GaTe multilayers were investigated through Berkovich-tip nanoindentation instead of the commonly used AFM-based nanoindentation method. An unusual concurrence of multiple pop-in and load-drop events in loading curve was observed. Theoretical calculations unveiled this concurrence originating from the interlayer-sliding mediated layers-by-layers fracture mechanism in GaTe multilayers. The van der Waals force dominated interlayer interactions between GaTe and substrates was revealed much stronger than that between GaTe interlayers, resulting in the easy sliding and fracture of multilayers within GaTe. This work introduces new insights into the deformation and fracture of GaTe and other 2D materials in flexible electronics applications. American Chemical Society 2022-04-25 2022-05-05 /pmc/articles/PMC9082608/ /pubmed/35467342 http://dx.doi.org/10.1021/acs.jpclett.2c00411 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Zhou, Yan
Zhou, Shi
Ying, Penghua
Zhao, Qinghua
Xie, Yong
Gong, Mingming
Jiang, Pisu
Cai, Hui
Chen, Bin
Tongay, Sefaattin
Zhang, Jin
Jie, Wanqi
Wang, Tao
Tan, Pingheng
Liu, Dong
Kuball, Martin
Unusual Deformation and Fracture in Gallium Telluride Multilayers
title Unusual Deformation and Fracture in Gallium Telluride Multilayers
title_full Unusual Deformation and Fracture in Gallium Telluride Multilayers
title_fullStr Unusual Deformation and Fracture in Gallium Telluride Multilayers
title_full_unstemmed Unusual Deformation and Fracture in Gallium Telluride Multilayers
title_short Unusual Deformation and Fracture in Gallium Telluride Multilayers
title_sort unusual deformation and fracture in gallium telluride multilayers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9082608/
https://www.ncbi.nlm.nih.gov/pubmed/35467342
http://dx.doi.org/10.1021/acs.jpclett.2c00411
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