Selective Etching of Hexagonal Boron Nitride by High-Pressure CF4 Plasma for Individual One-dimensional Ohmic Contacts to Graphene Layers

Autor: Seo, Yuta, Masubuchi, Satoru, Watanabe, Eisuke, Onodera, Momoko, Moriya, Rai, Watanabe, Kenji, Taniguchi, Takashi, Machida, Tomoki

We describe a technique for making one-dimensional ohmic contacts to individual graphene layers encapsulated in hexagonal boron nitride (h-BN) using CF4 and O2 plasmas. The high etch selectivity of h-BN against graphene (>1000) is achieved by increas

Externí odkaz: http://arxiv.org/abs/2012.02416

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Detection of cyclotron resonance using photo-induced thermionic emission at graphene/MoS2 van der Waals interface

Autor: Wakafuji, Yusai, Moriya, Rai, Park, Sabin, Kinoshita, Kei, Masubuchi, Satoru, Watanabe, Kenji, Taniguchi, Takashi, Machida, Tomoki

Publikováno v: Appl. Phys. Lett. 115, 143101 (2019)

We demonstrate the detection of cyclotron resonance in graphene by using a photo-induced thermionic emission mechanism at the graphene/MoS2 van der Waals (vdW) Schottky junction. At cyclotron resonance in Landau-quantized graphene, the infrared light

Externí odkaz: http://arxiv.org/abs/1909.08272

Dry release transfer of graphene and few-layer h-BN by utilizing thermoplasticity of polypropylene carbonate for fabricating edge-contact-free van der Waals heterostructures

Autor: Kinoshita, Kei, Moriya, Rai, Onodera, Momoko, Wakafuji, Yusai, Masubuchi, Satoru, Watanabe, Kenji, Taniguchi, Takashi, Machida, Tomoki

Publikováno v: This is a pre-print of an article published in npj 2D Materials and Applications 3, 22 (2019) . The final authenticated version is available online at following DOI

The dry release transfer of two-dimensional (2D) materials such as graphene, h-BN, and TMDs is a versatile method for fabricating high-quality van der Waals heterostructures. Up until now, polydimethylpolysiloxane (PDMS) sheets have been widely used

Externí odkaz: http://arxiv.org/abs/1904.12170

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