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Large-Area Metal–Semiconductor Heterojunctions Realized via MXene-Induced Two-Dimensional Surface Polarization
[Image: see text] Direct MXene deposition on large-area 2D semiconductor surfaces can provide design versatility for the fabrication of MXene-based electronic devices (MXetronics). However, it is challenging to deposit highly uniform wafer-scale hydrophilic MXene films (e.g., Ti(3)C(2)T(x)) on hydro...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10173692/ https://www.ncbi.nlm.nih.gov/pubmed/37079914 http://dx.doi.org/10.1021/acsnano.2c12684 |
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author | Guo, Tianchao Xu, Xiangming Liu, Chen Wang, Yizhou Lei, Yongjiu Fang, Bin Shi, Lin Liu, Hang Hota, Mrinal K. Al-Jawhari, Hala A. Zhang, Xixiang Alshareef, Husam N. |
author_facet | Guo, Tianchao Xu, Xiangming Liu, Chen Wang, Yizhou Lei, Yongjiu Fang, Bin Shi, Lin Liu, Hang Hota, Mrinal K. Al-Jawhari, Hala A. Zhang, Xixiang Alshareef, Husam N. |
author_sort | Guo, Tianchao |
collection | PubMed |
description | [Image: see text] Direct MXene deposition on large-area 2D semiconductor surfaces can provide design versatility for the fabrication of MXene-based electronic devices (MXetronics). However, it is challenging to deposit highly uniform wafer-scale hydrophilic MXene films (e.g., Ti(3)C(2)T(x)) on hydrophobic 2D semiconductor channel materials (e.g., MoS(2)). Here, we demonstrate a modified drop-casting (MDC) process for the deposition of MXene on MoS(2) without any pretreatment, which typically degrades the quality of either MXene or MoS(2). Different from the traditional drop-casting method, which usually forms rough and thick films at the micrometer scale, our MDC method can form an ultrathin Ti(3)C(2)T(x) film (ca. 10 nm) based on a MXene-introduced MoS(2) surface polarization phenomenon. In addition, our MDC process does not require any pretreatment, unlike MXene spray-coating that usually requires a hydrophilic pretreatment of the substrate surface before deposition. This process offers a significant advantage for Ti(3)C(2)T(x) film deposition on UV-ozone- or O(2)-plasma-sensitive surfaces. Using the MDC process, we fabricated wafer-scale n-type Ti(3)C(2)T(x)–MoS(2) van der Waals heterojunction transistors, achieving an average effective electron mobility of ∼40 cm(2)·V(–1)·s(–1), on/off current ratios exceeding 10(4), and subthreshold swings of under 200 mV·dec(–1). The proposed MDC process can considerably enhance the applications of MXenes, especially the design of MXene/semiconductor nanoelectronics. |
format | Online Article Text |
id | pubmed-10173692 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-101736922023-05-12 Large-Area Metal–Semiconductor Heterojunctions Realized via MXene-Induced Two-Dimensional Surface Polarization Guo, Tianchao Xu, Xiangming Liu, Chen Wang, Yizhou Lei, Yongjiu Fang, Bin Shi, Lin Liu, Hang Hota, Mrinal K. Al-Jawhari, Hala A. Zhang, Xixiang Alshareef, Husam N. ACS Nano [Image: see text] Direct MXene deposition on large-area 2D semiconductor surfaces can provide design versatility for the fabrication of MXene-based electronic devices (MXetronics). However, it is challenging to deposit highly uniform wafer-scale hydrophilic MXene films (e.g., Ti(3)C(2)T(x)) on hydrophobic 2D semiconductor channel materials (e.g., MoS(2)). Here, we demonstrate a modified drop-casting (MDC) process for the deposition of MXene on MoS(2) without any pretreatment, which typically degrades the quality of either MXene or MoS(2). Different from the traditional drop-casting method, which usually forms rough and thick films at the micrometer scale, our MDC method can form an ultrathin Ti(3)C(2)T(x) film (ca. 10 nm) based on a MXene-introduced MoS(2) surface polarization phenomenon. In addition, our MDC process does not require any pretreatment, unlike MXene spray-coating that usually requires a hydrophilic pretreatment of the substrate surface before deposition. This process offers a significant advantage for Ti(3)C(2)T(x) film deposition on UV-ozone- or O(2)-plasma-sensitive surfaces. Using the MDC process, we fabricated wafer-scale n-type Ti(3)C(2)T(x)–MoS(2) van der Waals heterojunction transistors, achieving an average effective electron mobility of ∼40 cm(2)·V(–1)·s(–1), on/off current ratios exceeding 10(4), and subthreshold swings of under 200 mV·dec(–1). The proposed MDC process can considerably enhance the applications of MXenes, especially the design of MXene/semiconductor nanoelectronics. American Chemical Society 2023-04-20 /pmc/articles/PMC10173692/ /pubmed/37079914 http://dx.doi.org/10.1021/acsnano.2c12684 Text en © 2023 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 | Guo, Tianchao Xu, Xiangming Liu, Chen Wang, Yizhou Lei, Yongjiu Fang, Bin Shi, Lin Liu, Hang Hota, Mrinal K. Al-Jawhari, Hala A. Zhang, Xixiang Alshareef, Husam N. Large-Area Metal–Semiconductor Heterojunctions Realized via MXene-Induced Two-Dimensional Surface Polarization |
title | Large-Area Metal–Semiconductor
Heterojunctions
Realized via MXene-Induced Two-Dimensional Surface Polarization |
title_full | Large-Area Metal–Semiconductor
Heterojunctions
Realized via MXene-Induced Two-Dimensional Surface Polarization |
title_fullStr | Large-Area Metal–Semiconductor
Heterojunctions
Realized via MXene-Induced Two-Dimensional Surface Polarization |
title_full_unstemmed | Large-Area Metal–Semiconductor
Heterojunctions
Realized via MXene-Induced Two-Dimensional Surface Polarization |
title_short | Large-Area Metal–Semiconductor
Heterojunctions
Realized via MXene-Induced Two-Dimensional Surface Polarization |
title_sort | large-area metal–semiconductor
heterojunctions
realized via mxene-induced two-dimensional surface polarization |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10173692/ https://www.ncbi.nlm.nih.gov/pubmed/37079914 http://dx.doi.org/10.1021/acsnano.2c12684 |
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