Selective decoration of Au nanoparticles on monolayer MoS 2 single crystals

Yumeng Shi; Jing-Kai Huang; Limin Jin; Yu-Te Hsu; Siu Fung Yu; Lain-Jong Li; Hui Ying Yang

doi:10.1038/srep01839

Selective decoration of Au nanoparticles on monolayer MoS 2 single crystals

Yumeng Shi
, Jing-Kai Huang
, Limin Jin
, Yu-Te Hsu
, Siu Fung Yu
, Lain-Jong Li
, Hui Ying Yang

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

412 Citations (Scopus)

41 Downloads (CityUHK Scholars)

Abstract

We report a controllable wet method for effective decoration of 2-dimensional (2D) molybdenum disulfide (MoS 2) layers with Au nanoparticles (NPs). Au NPs can be selectively formed on the edge sites or defective sites of MoS 2 layers. The Au-MoS 2 nano-composites are formed by non-covalent bond. The size distribution, morphology and density of the metal nanoparticles can be tuned by changing the defect density in MoS 2 layers. Field effect transistors were directly fabricated by placing ion gel gate dielectrics on Au-decorated MoS 2 layers without the need to transfer these MoS 2 layers to SiO 2 /Si substrates for bottom gate devices. The ion gel method allows probing the intrinsic electrical properties of the as-grown and Au-decorated MoS 2 layers. This study shows that Au NPs impose remarkable p-doping effects to the MoS 2 transistors without degrading their electrical characteristics.

Original language	English
Article number	1839
Journal	Scientific Reports
Volume	3
DOIs	https://doi.org/10.1038/srep01839
Publication status	Published - 2013
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

This work is supported by SUTD-MIT international design center fund to Dr Yang Hui Ying. L.J. Li thanks the support from Academia Sinica (IAMS and Nano program) and National Science Council Taiwan (NSC-99-2112-M-001-021-MY3). S.F. Yu and L.M. Jin thank PolyU grant (Grant No. G-YJ73).

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This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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title = "Selective decoration of Au nanoparticles on monolayer MoS 2 single crystals",

abstract = "We report a controllable wet method for effective decoration of 2-dimensional (2D) molybdenum disulfide (MoS 2) layers with Au nanoparticles (NPs). Au NPs can be selectively formed on the edge sites or defective sites of MoS 2 layers. The Au-MoS 2 nano-composites are formed by non-covalent bond. The size distribution, morphology and density of the metal nanoparticles can be tuned by changing the defect density in MoS 2 layers. Field effect transistors were directly fabricated by placing ion gel gate dielectrics on Au-decorated MoS 2 layers without the need to transfer these MoS 2 layers to SiO 2 /Si substrates for bottom gate devices. The ion gel method allows probing the intrinsic electrical properties of the as-grown and Au-decorated MoS 2 layers. This study shows that Au NPs impose remarkable p-doping effects to the MoS 2 transistors without degrading their electrical characteristics.",

author = "Yumeng Shi and Jing-Kai Huang and Limin Jin and Yu-Te Hsu and Yu, \{Siu Fung\} and Lain-Jong Li and Yang, \{Hui Ying\}",

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T1 - Selective decoration of Au nanoparticles on monolayer MoS 2 single crystals

AU - Shi, Yumeng

AU - Huang, Jing-Kai

AU - Jin, Limin

AU - Hsu, Yu-Te

AU - Yu, Siu Fung

AU - Li, Lain-Jong

AU - Yang, Hui Ying

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2013

Y1 - 2013

N2 - We report a controllable wet method for effective decoration of 2-dimensional (2D) molybdenum disulfide (MoS 2) layers with Au nanoparticles (NPs). Au NPs can be selectively formed on the edge sites or defective sites of MoS 2 layers. The Au-MoS 2 nano-composites are formed by non-covalent bond. The size distribution, morphology and density of the metal nanoparticles can be tuned by changing the defect density in MoS 2 layers. Field effect transistors were directly fabricated by placing ion gel gate dielectrics on Au-decorated MoS 2 layers without the need to transfer these MoS 2 layers to SiO 2 /Si substrates for bottom gate devices. The ion gel method allows probing the intrinsic electrical properties of the as-grown and Au-decorated MoS 2 layers. This study shows that Au NPs impose remarkable p-doping effects to the MoS 2 transistors without degrading their electrical characteristics.

AB - We report a controllable wet method for effective decoration of 2-dimensional (2D) molybdenum disulfide (MoS 2) layers with Au nanoparticles (NPs). Au NPs can be selectively formed on the edge sites or defective sites of MoS 2 layers. The Au-MoS 2 nano-composites are formed by non-covalent bond. The size distribution, morphology and density of the metal nanoparticles can be tuned by changing the defect density in MoS 2 layers. Field effect transistors were directly fabricated by placing ion gel gate dielectrics on Au-decorated MoS 2 layers without the need to transfer these MoS 2 layers to SiO 2 /Si substrates for bottom gate devices. The ion gel method allows probing the intrinsic electrical properties of the as-grown and Au-decorated MoS 2 layers. This study shows that Au NPs impose remarkable p-doping effects to the MoS 2 transistors without degrading their electrical characteristics.

UR - https://www.scopus.com/pages/publications/84878678401

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U2 - 10.1038/srep01839

DO - 10.1038/srep01839

M3 - RGC 21 - Publication in refereed journal

C2 - 23670611

SN - 2045-2322

VL - 3

JO - Scientific Reports

JF - Scientific Reports

M1 - 1839

ER -

Selective decoration of Au nanoparticles on monolayer MoS 2 single crystals

Abstract

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