Metallic Contact between MoS2 and Ni via Au Nanoglue
(2018) In Small 14(22).- Abstract
A critical factor for electronics based on inorganic layered crystals stems from the electrical contact mode between the semiconducting crystals and the metal counterparts in the electric circuit. Here, a materials tailoring strategy via nanocomposite decoration is carried out to reach metallic contact between MoS2 matrix and transition metal nanoparticles. Nickel nanoparticles (NiNPs) are successfully joined to the sides of a layered MoS2 crystal through gold nanobuffers, forming semiconducting and magnetic NiNPs@MoS2 complexes. The intrinsic semiconducting property of MoS2 remains unchanged, and it can be lowered to only few layers. Chemical bonding of the Ni to the MoS2 host is... (More)
A critical factor for electronics based on inorganic layered crystals stems from the electrical contact mode between the semiconducting crystals and the metal counterparts in the electric circuit. Here, a materials tailoring strategy via nanocomposite decoration is carried out to reach metallic contact between MoS2 matrix and transition metal nanoparticles. Nickel nanoparticles (NiNPs) are successfully joined to the sides of a layered MoS2 crystal through gold nanobuffers, forming semiconducting and magnetic NiNPs@MoS2 complexes. The intrinsic semiconducting property of MoS2 remains unchanged, and it can be lowered to only few layers. Chemical bonding of the Ni to the MoS2 host is verified by synchrotron radiation based photoemission electron microscopy, and further proved by first-principles calculations. Following the system's band alignment, new electron migration channels between metal and the semiconducting side contribute to the metallic contact mechanism, while semiconductor-metal heterojunctions enhance the photocatalytic ability.
(Less)
- author
- organization
- publishing date
- 2018-04-24
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- First-principles calculations, Inorganic layered crystals, Metal-semiconductor contact, Synchrotron radiation
- in
- Small
- volume
- 14
- issue
- 22
- article number
- 1704526
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- scopus:85045958700
- pmid:29687601
- ISSN
- 1613-6810
- DOI
- 10.1002/smll.201704526
- language
- English
- LU publication?
- yes
- id
- 53822182-7aca-4151-a049-1acd1786505d
- date added to LUP
- 2018-05-07 09:54:01
- date last changed
- 2024-06-25 16:45:34
@article{53822182-7aca-4151-a049-1acd1786505d, abstract = {{<p>A critical factor for electronics based on inorganic layered crystals stems from the electrical contact mode between the semiconducting crystals and the metal counterparts in the electric circuit. Here, a materials tailoring strategy via nanocomposite decoration is carried out to reach metallic contact between MoS<sub>2</sub> matrix and transition metal nanoparticles. Nickel nanoparticles (NiNPs) are successfully joined to the sides of a layered MoS<sub>2</sub> crystal through gold nanobuffers, forming semiconducting and magnetic NiNPs@MoS<sub>2</sub> complexes. The intrinsic semiconducting property of MoS<sub>2</sub> remains unchanged, and it can be lowered to only few layers. Chemical bonding of the Ni to the MoS<sub>2</sub> host is verified by synchrotron radiation based photoemission electron microscopy, and further proved by first-principles calculations. Following the system's band alignment, new electron migration channels between metal and the semiconducting side contribute to the metallic contact mechanism, while semiconductor-metal heterojunctions enhance the photocatalytic ability.</p>}}, author = {{Shi, Xinying and Posysaev, Sergei and Huttula, Marko and Pankratov, Vladimir and Hoszowska, Joanna and Dousse, Jean Claude and Zeeshan, Faisal and Niu, Yuran and Zakharov, Alexei and Li, Taohai and Miroshnichenko, Olga and Zhang, Meng and Wang, Xiao and Huang, Zhongjia and Saukko, Sami and González, Diego López and van Dijken, Sebastiaan and Alatalo, Matti and Cao, Wei}}, issn = {{1613-6810}}, keywords = {{First-principles calculations; Inorganic layered crystals; Metal-semiconductor contact; Synchrotron radiation}}, language = {{eng}}, month = {{04}}, number = {{22}}, publisher = {{John Wiley & Sons Inc.}}, series = {{Small}}, title = {{Metallic Contact between MoS<sub>2</sub> and Ni via Au Nanoglue}}, url = {{http://dx.doi.org/10.1002/smll.201704526}}, doi = {{10.1002/smll.201704526}}, volume = {{14}}, year = {{2018}}, }