Van der Waals Bonded Materials: From Quasi-2D to Quasi-1D

Invited

Abstract

The advent of graphene stimulated interest to other two-dimensional (2D) van der Waals materials. In the first part of my talk, I will describe interesting phenomena emerging in 2D transition metal dichalcogenides (TMDs), which reveal charge density wave (CDW) phases [1-2]. Bonding and integrating three different 2D materials, 1T-TaS2, graphene and h-BN, in a way that exploited the unique characteristics of each, we were able to demonstrate a voltage controlled oscillator (VCO) functioning at room temperature [2]. In the second part of my talk, I will explain why the research of 2D materials should be extended to the one-dimensional (1D) van der Waals materials. Using transition metal trichalcogenides (TMTs) such as TaSe3 we demonstrated prototype “atomic wire” interconnects with extraordinary current density [3-4]. I will present results, which show that integration of quasi-2D and quasi-1D van der Waals materials can lead to new functionality, previously not achievable.

[1] R. Samnakay, et al., Nano Lett., 15, 2965 (2015); [2] G. Liu, et al., Nature Nano, 11, 845 (2016); [3] M. A. Stolyarov, et al., Nanoscale, 8, 15774 (2016); [4] G. Liu, et al., Nano Lett., 17, 377 (2017).

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Presenters

  • Alexander Balandin

    Electrical and Computer Engineering , University of California, Electrical and Computer Engineering, University of California Riverside, Electrical and computer Engineering, Univ of California - Riverside, Department of Electrical and Computer Engineering/Materials Science and Engineering Program, University of California, Riverside, Department of Electrical and Computer Engineering, University of California, Riverside, Electrical and Computer Engineering, University of California, Riverside, University of California Riverside

Authors

  • Alexander Balandin

    Electrical and Computer Engineering , University of California, Electrical and Computer Engineering, University of California Riverside, Electrical and computer Engineering, Univ of California - Riverside, Department of Electrical and Computer Engineering/Materials Science and Engineering Program, University of California, Riverside, Department of Electrical and Computer Engineering, University of California, Riverside, Electrical and Computer Engineering, University of California, Riverside, University of California Riverside