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Open AccessFeature PaperArticle

The Interaction of Hydrogen with the van der Waals Crystal γ-InSe

1
School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, UK
2
Advanced Materials Research Group, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK
3
Dipartimento di Fisica, Sapienza Università di Roma, 00185 Roma, Italy
4
School of Chemistry, University of Nottingham, Nottingham NG7 2RD, UK
5
Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, Chernivtsi Branch, 58001 Chernivtsi, Ukraine
*
Authors to whom correspondence should be addressed.
Molecules 2020, 25(11), 2526; https://doi.org/10.3390/molecules25112526
Received: 30 April 2020 / Revised: 22 May 2020 / Accepted: 23 May 2020 / Published: 28 May 2020
(This article belongs to the Special Issue Innovative Materials for Energy Storage)
The emergence of the hydrogen economy requires development in the storage, generation and sensing of hydrogen. The indium selenide ( γ -InSe) van der Waals (vdW) crystal shows promise for technologies in all three of these areas. For these applications to be realised, the fundamental interactions of InSe with hydrogen must be understood. Here, we present a comprehensive experimental and theoretical study on the interaction of γ -InSe with hydrogen. It is shown that hydrogenation of γ -InSe by a Kaufman ion source results in a marked quenching of the room temperature photoluminescence signal and a modification of the vibrational modes of γ -InSe, which are modelled by density functional theory simulations. Our experimental and theoretical studies indicate that hydrogen is incorporated into the crystal preferentially in its atomic form. This behaviour is qualitatively different from that observed in other vdW crystals, such as transition metal dichalcogenides, where molecular hydrogen is intercalated in the vdW gaps of the crystal, leading to the formation of “bubbles” for hydrogen storage. View Full-Text
Keywords: indium selenide; intercalation; Kaufman ion source; Raman; photoluminescence; van der Waals crystals; hydrogen indium selenide; intercalation; Kaufman ion source; Raman; photoluminescence; van der Waals crystals; hydrogen
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MDPI and ACS Style

Felton, J.; Blundo, E.; Ling, S.; Glover, J.; Kudrynskyi, Z.R.; Makarovsky, O.; Kovalyuk, Z.D.; Besley, E.; Walker, G.; Polimeni, A.; Patané, A. The Interaction of Hydrogen with the van der Waals Crystal γ-InSe. Molecules 2020, 25, 2526. https://doi.org/10.3390/molecules25112526

AMA Style

Felton J, Blundo E, Ling S, Glover J, Kudrynskyi ZR, Makarovsky O, Kovalyuk ZD, Besley E, Walker G, Polimeni A, Patané A. The Interaction of Hydrogen with the van der Waals Crystal γ-InSe. Molecules. 2020; 25(11):2526. https://doi.org/10.3390/molecules25112526

Chicago/Turabian Style

Felton, James; Blundo, Elena; Ling, Sanliang; Glover, Joseph; Kudrynskyi, Zakhar R.; Makarovsky, Oleg; Kovalyuk, Zakhar D.; Besley, Elena; Walker, Gavin; Polimeni, Antonio; Patané, Amalia. 2020. "The Interaction of Hydrogen with the van der Waals Crystal γ-InSe" Molecules 25, no. 11: 2526. https://doi.org/10.3390/molecules25112526

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