Shape-Controllable Gold Nanoparticle-MoS2 Hybrids Prepared by Tuning Edge-Active Sites and Surface Structures of MoS2 via Temporally Shaped Femtosecond Pulses

Pei Zuo; Lan Jiang; Xin Li; Bo Li; Yongda Xu; Xuesong Shi; Peng Ran; Tianbao Ma; Dawei Li; Liangti Qu; Yongfeng Lu; Costas P. Grigoropoulos

doi:10.1021/acsami.6b14805

Shape-Controllable Gold Nanoparticle-MoS₂ Hybrids Prepared by Tuning Edge-Active Sites and Surface Structures of MoS₂ via Temporally Shaped Femtosecond Pulses

Pei Zuo, Lan Jiang^*, Xin Li, Bo Li, Yongda Xu, Xuesong Shi, Peng Ran, Tianbao Ma, Dawei Li, Liangti Qu, Yongfeng Lu, Costas P. Grigoropoulos

^*Corresponding author for this work

School of Mechanical Engineering

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

55 Citations (Scopus)

Abstract

Edge-active site control of MoS₂ is crucial for applications such as chemical catalysis, synthesis of functional composites, and biochemical sensing. This work presents a novel nonthermal method to simultaneously tune surface chemical (edge-active sites) and physical (surface periodic micro/nano structures) properties of MoS₂ using temporally shaped femtosecond pulses, through which shape-controlled gold nanoparticles are in situ and self-assembly grown on MoS₂ surfaces to form Au-MoS₂ hybrids. The edge-active sites with unbound sulfurs of laser-treated MoS₂ drive the reduction of gold nanoparticles, while the surface periodic structures of laser-treated MoS₂ assist the shape-controllable growth of gold nanoparticles. The proposed novel method highlights the broad application potential of MoS₂; for example, these Au-MoS₂ hybrids exhibit tunable and highly sensitive SERS activity with an enhancement factor up to 1.2 × 10⁷, indicating the marked potential of MoS₂ in future chemical and biological sensing applications.

Original language	English
Pages (from-to)	7447-7455
Number of pages	9
Journal	ACS applied materials & interfaces
Volume	9
Issue number	8
DOIs	https://doi.org/10.1021/acsami.6b14805
Publication status	Published - 1 Mar 2017

Keywords

Au-MoS hybrids
MoS film
edge-active site
periodic surface structure
shaped femtosecond pulse

Access to Document

10.1021/acsami.6b14805

Cite this

Zuo, P., Jiang, L., Li, X., Li, B., Xu, Y., Shi, X., Ran, P., Ma, T., Li, D., Qu, L., Lu, Y., & Grigoropoulos, C. P. (2017). Shape-Controllable Gold Nanoparticle-MoS₂ Hybrids Prepared by Tuning Edge-Active Sites and Surface Structures of MoS₂ via Temporally Shaped Femtosecond Pulses. ACS applied materials & interfaces, 9(8), 7447-7455. https://doi.org/10.1021/acsami.6b14805

@article{64b5c75940844a71973fc72fe2a31bcf,

title = "Shape-Controllable Gold Nanoparticle-MoS2 Hybrids Prepared by Tuning Edge-Active Sites and Surface Structures of MoS2 via Temporally Shaped Femtosecond Pulses",

abstract = "Edge-active site control of MoS2 is crucial for applications such as chemical catalysis, synthesis of functional composites, and biochemical sensing. This work presents a novel nonthermal method to simultaneously tune surface chemical (edge-active sites) and physical (surface periodic micro/nano structures) properties of MoS2 using temporally shaped femtosecond pulses, through which shape-controlled gold nanoparticles are in situ and self-assembly grown on MoS2 surfaces to form Au-MoS2 hybrids. The edge-active sites with unbound sulfurs of laser-treated MoS2 drive the reduction of gold nanoparticles, while the surface periodic structures of laser-treated MoS2 assist the shape-controllable growth of gold nanoparticles. The proposed novel method highlights the broad application potential of MoS2; for example, these Au-MoS2 hybrids exhibit tunable and highly sensitive SERS activity with an enhancement factor up to 1.2 × 107, indicating the marked potential of MoS2 in future chemical and biological sensing applications.",

keywords = "Au-MoS hybrids, MoS film, edge-active site, periodic surface structure, shaped femtosecond pulse",

author = "Pei Zuo and Lan Jiang and Xin Li and Bo Li and Yongda Xu and Xuesong Shi and Peng Ran and Tianbao Ma and Dawei Li and Liangti Qu and Yongfeng Lu and Grigoropoulos, {Costas P.}",

note = "Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

year = "2017",

month = mar,

day = "1",

doi = "10.1021/acsami.6b14805",

language = "English",

volume = "9",

pages = "7447--7455",

journal = "ACS applied materials & interfaces",

issn = "1944-8244",

publisher = "American Chemical Society",

number = "8",

}

Zuo, P, Jiang, L , Li, X, Li, B, Xu, Y, Shi, X, Ran, P, Ma, T, Li, D, Qu, L, Lu, Y & Grigoropoulos, CP 2017, 'Shape-Controllable Gold Nanoparticle-MoS₂ Hybrids Prepared by Tuning Edge-Active Sites and Surface Structures of MoS₂ via Temporally Shaped Femtosecond Pulses', ACS applied materials & interfaces, vol. 9, no. 8, pp. 7447-7455. https://doi.org/10.1021/acsami.6b14805

TY - JOUR

T1 - Shape-Controllable Gold Nanoparticle-MoS2 Hybrids Prepared by Tuning Edge-Active Sites and Surface Structures of MoS2 via Temporally Shaped Femtosecond Pulses

AU - Zuo, Pei

AU - Jiang, Lan

AU - Li, Xin

AU - Li, Bo

AU - Xu, Yongda

AU - Shi, Xuesong

AU - Ran, Peng

AU - Ma, Tianbao

AU - Li, Dawei

AU - Qu, Liangti

AU - Lu, Yongfeng

AU - Grigoropoulos, Costas P.

PY - 2017/3/1

Y1 - 2017/3/1

N2 - Edge-active site control of MoS2 is crucial for applications such as chemical catalysis, synthesis of functional composites, and biochemical sensing. This work presents a novel nonthermal method to simultaneously tune surface chemical (edge-active sites) and physical (surface periodic micro/nano structures) properties of MoS2 using temporally shaped femtosecond pulses, through which shape-controlled gold nanoparticles are in situ and self-assembly grown on MoS2 surfaces to form Au-MoS2 hybrids. The edge-active sites with unbound sulfurs of laser-treated MoS2 drive the reduction of gold nanoparticles, while the surface periodic structures of laser-treated MoS2 assist the shape-controllable growth of gold nanoparticles. The proposed novel method highlights the broad application potential of MoS2; for example, these Au-MoS2 hybrids exhibit tunable and highly sensitive SERS activity with an enhancement factor up to 1.2 × 107, indicating the marked potential of MoS2 in future chemical and biological sensing applications.

AB - Edge-active site control of MoS2 is crucial for applications such as chemical catalysis, synthesis of functional composites, and biochemical sensing. This work presents a novel nonthermal method to simultaneously tune surface chemical (edge-active sites) and physical (surface periodic micro/nano structures) properties of MoS2 using temporally shaped femtosecond pulses, through which shape-controlled gold nanoparticles are in situ and self-assembly grown on MoS2 surfaces to form Au-MoS2 hybrids. The edge-active sites with unbound sulfurs of laser-treated MoS2 drive the reduction of gold nanoparticles, while the surface periodic structures of laser-treated MoS2 assist the shape-controllable growth of gold nanoparticles. The proposed novel method highlights the broad application potential of MoS2; for example, these Au-MoS2 hybrids exhibit tunable and highly sensitive SERS activity with an enhancement factor up to 1.2 × 107, indicating the marked potential of MoS2 in future chemical and biological sensing applications.

KW - Au-MoS hybrids

KW - MoS film

KW - edge-active site

KW - periodic surface structure

KW - shaped femtosecond pulse

UR - http://www.scopus.com/inward/record.url?scp=85014134766&partnerID=8YFLogxK

U2 - 10.1021/acsami.6b14805

DO - 10.1021/acsami.6b14805

M3 - Article

C2 - 28156099

AN - SCOPUS:85014134766

SN - 1944-8244

VL - 9

SP - 7447

EP - 7455

JO - ACS applied materials & interfaces

JF - ACS applied materials & interfaces

IS - 8

ER -

Shape-Controllable Gold Nanoparticle-MoS₂ Hybrids Prepared by Tuning Edge-Active Sites and Surface Structures of MoS₂ via Temporally Shaped Femtosecond Pulses

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this