Ultra-thin 2D transition metal monochalcogenide crystals by planarized reactions

Abstract We here present a planarized solid-state chemical reaction that can produce transition metal monochalcogenide (TMMC) 2D crystals with large lateral extent and finely controllable thickness down to individual layers. The enhanced lateral diffusion of a gaseous reactant at the interface betwe...

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Autores principales:	Hao-Ting Chin, Mario Hofmann, Su-Yu Huang, Song-Fu Yao, Jian-Jhang Lee, Chia-Chun Chen, Chu-Chi Ting, Ya-Ping Hsieh
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/359c5e049b3f412db947f0385de08fad
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spelling	oai:doaj.org-article:359c5e049b3f412db947f0385de08fad2021-12-02T13:14:57ZUltra-thin 2D transition metal monochalcogenide crystals by planarized reactions10.1038/s41699-021-00207-22397-7132https://doaj.org/article/359c5e049b3f412db947f0385de08fad2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41699-021-00207-2https://doaj.org/toc/2397-7132Abstract We here present a planarized solid-state chemical reaction that can produce transition metal monochalcogenide (TMMC) 2D crystals with large lateral extent and finely controllable thickness down to individual layers. The enhanced lateral diffusion of a gaseous reactant at the interface between a solid precursor and graphene was found to provide a universal route towards layered TMMCs of different compositions. A unique layer-by-layer growth mechanism yields atomically abrupt crystal interfaces and kinetically controllable thickness down to a single TMMC layer. Our approach stabilizes 2D crystals with commonly unattainable thermodynamic phases, such as β-Cu2S and γ-CuSe, and spectroscopic characterization reveals ultra-large phase transition depression and interesting electronic properties. The presented ability to produce large-scale 2D crystals with high environmental stability was applied to highly sensitive and fast optoelectronic sensors. Our approach extends the morphological, compositional, and thermodynamic complexity of 2D materials.Hao-Ting ChinMario HofmannSu-Yu HuangSong-Fu YaoJian-Jhang LeeChia-Chun ChenChu-Chi TingYa-Ping HsiehNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492ChemistryQD1-999ENnpj 2D Materials and Applications, Vol 5, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999
spellingShingle	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999 Hao-Ting Chin Mario Hofmann Su-Yu Huang Song-Fu Yao Jian-Jhang Lee Chia-Chun Chen Chu-Chi Ting Ya-Ping Hsieh Ultra-thin 2D transition metal monochalcogenide crystals by planarized reactions
description	Abstract We here present a planarized solid-state chemical reaction that can produce transition metal monochalcogenide (TMMC) 2D crystals with large lateral extent and finely controllable thickness down to individual layers. The enhanced lateral diffusion of a gaseous reactant at the interface between a solid precursor and graphene was found to provide a universal route towards layered TMMCs of different compositions. A unique layer-by-layer growth mechanism yields atomically abrupt crystal interfaces and kinetically controllable thickness down to a single TMMC layer. Our approach stabilizes 2D crystals with commonly unattainable thermodynamic phases, such as β-Cu2S and γ-CuSe, and spectroscopic characterization reveals ultra-large phase transition depression and interesting electronic properties. The presented ability to produce large-scale 2D crystals with high environmental stability was applied to highly sensitive and fast optoelectronic sensors. Our approach extends the morphological, compositional, and thermodynamic complexity of 2D materials.
format	article
author	Hao-Ting Chin Mario Hofmann Su-Yu Huang Song-Fu Yao Jian-Jhang Lee Chia-Chun Chen Chu-Chi Ting Ya-Ping Hsieh
author_facet	Hao-Ting Chin Mario Hofmann Su-Yu Huang Song-Fu Yao Jian-Jhang Lee Chia-Chun Chen Chu-Chi Ting Ya-Ping Hsieh
author_sort	Hao-Ting Chin
title	Ultra-thin 2D transition metal monochalcogenide crystals by planarized reactions
title_short	Ultra-thin 2D transition metal monochalcogenide crystals by planarized reactions
title_full	Ultra-thin 2D transition metal monochalcogenide crystals by planarized reactions
title_fullStr	Ultra-thin 2D transition metal monochalcogenide crystals by planarized reactions
title_full_unstemmed	Ultra-thin 2D transition metal monochalcogenide crystals by planarized reactions
title_sort	ultra-thin 2d transition metal monochalcogenide crystals by planarized reactions
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/359c5e049b3f412db947f0385de08fad
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Ultra-thin 2D transition metal monochalcogenide crystals by planarized reactions

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