One-Dimensional Assembly on Two-Dimensions: AuCN Nanowire Epitaxy on Graphene for Hybrid Phototransistors

Jeongsu Jang; Yangjin Lee; Jun Yeong Yoon; Hoon Hahn Yoon; Jahyun Koo; Jeongheon Choe; Sungho Jeon; Jongbaek Sung; Jungwon Park; Won Chul Lee; Hoonkyung Lee; Hu Young Jeong; Kibog Park; Kwanpyo Kim

doi:10.1021/acs.nanolett.8b02259

One-Dimensional Assembly on Two-Dimensions: AuCN Nanowire Epitaxy on Graphene for Hybrid Phototransistors

Jeongsu Jang, Yangjin Lee, Jun Yeong Yoon, Hoon Hahn Yoon, Jahyun Koo, Jeongheon Choe, Sungho Jeon, Jongbaek Sung, Jungwon Park, Won Chul Lee, Hoonkyung Lee, Hu Young Jeong, Kibog Park, Kwanpyo Kim

Department of Physics

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

The van der Waals epitaxy of functional materials provides an interesting and efficient way to manipulate the electrical properties of various hybrid two-dimensional (2D) systems. Here we show the controlled epitaxial assembly of semiconducting one-dimensional (1D) atomic chains, AuCN, on graphene and investigate the electrical properties of 1D/2D van der Waals heterostructures. AuCN nanowire assembly is tuned by different growth conditions, although the epitaxial alignment between AuCN chains and graphene remains unchanged. The switching of the preferred nanowire growth axis indicates that diffusion kinetics affects the nanowire formation process. Semiconducting AuCN chains endow the 1D/2D hybrid system with a strong responsivity to photons with an energy above 2.7 eV, which is consistent with the bandgap of AuCN. A large UV response (responsivity â10⁴ A/W) was observed under illumination using 3.1 eV (400 nm) photons. Our study clearly demonstrates that 1D chain-structured semiconductors can play a crucial role as a component in multifunctional van der Waals heterostructures.

Original language	English
Pages (from-to)	6214-6221
Number of pages	8
Journal	Nano letters
Volume	18
Issue number	10
DOIs	https://doi.org/10.1021/acs.nanolett.8b02259
Publication status	Published - 2018 Oct 10

Bibliographical note

Funding Information:
This work was mainly supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF-2017R1A5A1014862 and NRF-2016R1D1A1B03934008). H.H.Y. and K.P. acknowledge support from the Basic Science Research Program (2016R1A2B4014762) and Global Ph.D. Fellowship Program (2015H1A2A1033714) through the National Research Foundation funded by the Ministry of Science and ICT in Korea. J.S. and J.P. acknowledge support from IBS-R006-D1 and the National Research Foundation of Korea (NRF) grant funded by the Korea Government (MSIT) (NRF-2017R1A5A1015356). S.J. and W.C.L. acknowledge support from the Basic Science Research Program and the Convergence Technology Development Program for Bionic Arm through NRF funded by the Ministry of Science and ICT (2016R1C1B1014940 and 2015M3C1B2052811).

Publisher Copyright:
© 2018 American Chemical Society.

All Science Journal Classification (ASJC) codes

Bioengineering
Chemistry(all)
Materials Science(all)
Condensed Matter Physics
Mechanical Engineering

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10.1021/acs.nanolett.8b02259

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@article{54807e3ee517411aaf88c9fe37dfff4b,

title = "One-Dimensional Assembly on Two-Dimensions: AuCN Nanowire Epitaxy on Graphene for Hybrid Phototransistors",

abstract = "The van der Waals epitaxy of functional materials provides an interesting and efficient way to manipulate the electrical properties of various hybrid two-dimensional (2D) systems. Here we show the controlled epitaxial assembly of semiconducting one-dimensional (1D) atomic chains, AuCN, on graphene and investigate the electrical properties of 1D/2D van der Waals heterostructures. AuCN nanowire assembly is tuned by different growth conditions, although the epitaxial alignment between AuCN chains and graphene remains unchanged. The switching of the preferred nanowire growth axis indicates that diffusion kinetics affects the nanowire formation process. Semiconducting AuCN chains endow the 1D/2D hybrid system with a strong responsivity to photons with an energy above 2.7 eV, which is consistent with the bandgap of AuCN. A large UV response (responsivity {\^a}104 A/W) was observed under illumination using 3.1 eV (400 nm) photons. Our study clearly demonstrates that 1D chain-structured semiconductors can play a crucial role as a component in multifunctional van der Waals heterostructures.",

author = "Jeongsu Jang and Yangjin Lee and Yoon, {Jun Yeong} and Yoon, {Hoon Hahn} and Jahyun Koo and Jeongheon Choe and Sungho Jeon and Jongbaek Sung and Jungwon Park and Lee, {Won Chul} and Hoonkyung Lee and Jeong, {Hu Young} and Kibog Park and Kwanpyo Kim",

note = "Funding Information: This work was mainly supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF-2017R1A5A1014862 and NRF-2016R1D1A1B03934008). H.H.Y. and K.P. acknowledge support from the Basic Science Research Program (2016R1A2B4014762) and Global Ph.D. Fellowship Program (2015H1A2A1033714) through the National Research Foundation funded by the Ministry of Science and ICT in Korea. J.S. and J.P. acknowledge support from IBS-R006-D1 and the National Research Foundation of Korea (NRF) grant funded by the Korea Government (MSIT) (NRF-2017R1A5A1015356). S.J. and W.C.L. acknowledge support from the Basic Science Research Program and the Convergence Technology Development Program for Bionic Arm through NRF funded by the Ministry of Science and ICT (2016R1C1B1014940 and 2015M3C1B2052811). Publisher Copyright: {\textcopyright} 2018 American Chemical Society.",

year = "2018",

month = oct,

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doi = "10.1021/acs.nanolett.8b02259",

language = "English",

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AU - Lee, Yangjin

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AU - Yoon, Hoon Hahn

AU - Koo, Jahyun

AU - Choe, Jeongheon

AU - Jeon, Sungho

AU - Sung, Jongbaek

AU - Park, Jungwon

AU - Lee, Won Chul

AU - Lee, Hoonkyung

AU - Jeong, Hu Young

AU - Park, Kibog

AU - Kim, Kwanpyo

N1 - Funding Information: This work was mainly supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF-2017R1A5A1014862 and NRF-2016R1D1A1B03934008). H.H.Y. and K.P. acknowledge support from the Basic Science Research Program (2016R1A2B4014762) and Global Ph.D. Fellowship Program (2015H1A2A1033714) through the National Research Foundation funded by the Ministry of Science and ICT in Korea. J.S. and J.P. acknowledge support from IBS-R006-D1 and the National Research Foundation of Korea (NRF) grant funded by the Korea Government (MSIT) (NRF-2017R1A5A1015356). S.J. and W.C.L. acknowledge support from the Basic Science Research Program and the Convergence Technology Development Program for Bionic Arm through NRF funded by the Ministry of Science and ICT (2016R1C1B1014940 and 2015M3C1B2052811). Publisher Copyright: © 2018 American Chemical Society.

PY - 2018/10/10

Y1 - 2018/10/10

N2 - The van der Waals epitaxy of functional materials provides an interesting and efficient way to manipulate the electrical properties of various hybrid two-dimensional (2D) systems. Here we show the controlled epitaxial assembly of semiconducting one-dimensional (1D) atomic chains, AuCN, on graphene and investigate the electrical properties of 1D/2D van der Waals heterostructures. AuCN nanowire assembly is tuned by different growth conditions, although the epitaxial alignment between AuCN chains and graphene remains unchanged. The switching of the preferred nanowire growth axis indicates that diffusion kinetics affects the nanowire formation process. Semiconducting AuCN chains endow the 1D/2D hybrid system with a strong responsivity to photons with an energy above 2.7 eV, which is consistent with the bandgap of AuCN. A large UV response (responsivity â104 A/W) was observed under illumination using 3.1 eV (400 nm) photons. Our study clearly demonstrates that 1D chain-structured semiconductors can play a crucial role as a component in multifunctional van der Waals heterostructures.

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One-Dimensional Assembly on Two-Dimensions: AuCN Nanowire Epitaxy on Graphene for Hybrid Phototransistors

Abstract

Bibliographical note

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