Metallic Contact between MoS2 and Ni via Au Nanoglue

Research output: Contribution to journalArticle


title = "Metallic Contact between MoS2 and Ni via Au Nanoglue",
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 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.",
keywords = "First-principles calculations, Inorganic layered crystals, Metal-semiconductor contact, Synchrotron radiation",
author = "Xinying Shi and Sergei Posysaev and Marko Huttula and Vladimir Pankratov and Joanna Hoszowska and Dousse, {Jean Claude} and Faisal Zeeshan and Yuran Niu and Alexei Zakharov and Taohai Li and Olga Miroshnichenko and Meng Zhang and Xiao Wang and Zhongjia Huang and Sami Saukko and Gonz{\'a}lez, {Diego L{\'o}pez} and {van Dijken}, Sebastiaan and Matti Alatalo and Wei Cao",
year = "2018",
doi = "10.1002/smll.201704526",
language = "English",
volume = "14",
journal = "Small",
issn = "1613-6829",
publisher = "John Wiley & Sons",
number = "22",