We investigate hydrogen desorptions from monolayer and multilayer graphane analogs, namely, silicane (SiH) and germanane (GeH), by the first-principles calculations. It is found from the calculated pressure–temperature diagrams of the monolayer and multilayer SiH and GeH crystals that the hydrogen atoms can be removed by heating and reducing hydrogen partial pressure. We also perform thermal-desorption-spectroscopy measurements for the multilayer crystals in order to demonstrate the validity of the theoretical calculations, and it turns out that the theoretical results are worth believing. Our theoretical results for monolayer SiH/GeH crystals indicate monolayer SiH and GeH crystals possess high potential to find their application as a precursor to free-standing monolayer silicene and germanene, respectively.
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28 September 2020
Research Article|
September 22 2020
Hydrogen desorption from silicane and germanane crystals: Toward creation of free-standing monolayer silicene and germanene Available to Purchase
Special Collection:
Beyond Graphene: Low Symmetry and Anisotropic 2D Materials
Masaaki Araidai
;
Masaaki Araidai
a)
1
Institute of Materials and Systems for Sustainability, Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
2
Institute for Advanced Research, Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
a)Author to whom correspondence should be addressed: [email protected]
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Mai Itoh;
Mai Itoh
3
Graduate School of Engineering, Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Masashi Kurosawa
;
Masashi Kurosawa
2
Institute for Advanced Research, Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
3
Graduate School of Engineering, Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Akio Ohta;
Akio Ohta
2
Institute for Advanced Research, Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
3
Graduate School of Engineering, Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Kenji Shiraishi
Kenji Shiraishi
1
Institute of Materials and Systems for Sustainability, Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
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Masaaki Araidai
1,2,a)
Mai Itoh
3
Masashi Kurosawa
2,3
Akio Ohta
2,3
Kenji Shiraishi
1
1
Institute of Materials and Systems for Sustainability, Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
2
Institute for Advanced Research, Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
3
Graduate School of Engineering, Nagoya University
, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
a)Author to whom correspondence should be addressed: [email protected]
Note: This paper is part of the Special Topic on Beyond Graphene: Low Symmetry and Anisotropic 2D Materials.
J. Appl. Phys. 128, 125301 (2020)
Article history
Received:
June 18 2020
Accepted:
September 04 2020
Citation
Masaaki Araidai, Mai Itoh, Masashi Kurosawa, Akio Ohta, Kenji Shiraishi; Hydrogen desorption from silicane and germanane crystals: Toward creation of free-standing monolayer silicene and germanene. J. Appl. Phys. 28 September 2020; 128 (12): 125301. https://doi.org/10.1063/5.0018855
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