Synthesis of 2D Germanane (GeH): a New, Fast, and Facile Approach.

Autor: Giousis T; Department of Materials Science & Engineering, University of Ioannina, 45110, Ioannina, Greece.; Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747, AG, Groningen, The Netherlands., Potsi G; Department of Materials Science & Engineering, University of Ioannina, 45110, Ioannina, Greece.; Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747, AG, Groningen, The Netherlands.; current address: Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA., Kouloumpis A; Department of Materials Science & Engineering, University of Ioannina, 45110, Ioannina, Greece.; Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747, AG, Groningen, The Netherlands.; current address: Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA., Spyrou K; Department of Materials Science & Engineering, University of Ioannina, 45110, Ioannina, Greece., Georgantas Y; Department of Materials Science & Engineering, University of Ioannina, 45110, Ioannina, Greece.; Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747, AG, Groningen, The Netherlands.; current address: Department of Materials, National Graphene Institute, Henry Royce Institute, University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom., Chalmpes N; Department of Materials Science & Engineering, University of Ioannina, 45110, Ioannina, Greece., Dimos K; Department of Materials Science & Engineering, University of Ioannina, 45110, Ioannina, Greece.; current address: Department of Materials Science, University of Patras, GR-26504, Patras, Greece., Antoniou MK; Department of Materials Science & Engineering, University of Ioannina, 45110, Ioannina, Greece., Papavassiliou G; Institute of Nanoscience and Nanotechnology, NCSR 'DEMOKRITOS', 15310 Ag. Paraskevi-Attikis, Athens, Greece., Bourlinos AB; Department of Physics, University of Ioannina, 45110, Ioannina, Greece., Kim HJ; Nano-Bio Electron Microscopy Research Group, Korea Basic Science Institute, Yuseong-gu, Daejeon, Republic of Korea., Wadi VKS; Department of Chemical Engineering, Khalifa University of Science and Technology, The Petroleum Institute, PO Box 2533, Abu Dhabi, United Arab Emirates., Alhassan S; Department of Chemical Engineering, Khalifa University of Science and Technology, The Petroleum Institute, PO Box 2533, Abu Dhabi, United Arab Emirates., Ahmadi M; Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747, AG, Groningen, The Netherlands., Kooi BJ; Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747, AG, Groningen, The Netherlands., Blake G; Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747, AG, Groningen, The Netherlands., Balazs DM; Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747, AG, Groningen, The Netherlands., Loi MA; Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747, AG, Groningen, The Netherlands., Gournis D; Department of Materials Science & Engineering, University of Ioannina, 45110, Ioannina, Greece., Rudolf P; Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747, AG, Groningen, The Netherlands.
Jazyk: angličtina
Zdroj: Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2021 Jan 04; Vol. 60 (1), pp. 360-365. Date of Electronic Publication: 2020 Nov 03.
DOI: 10.1002/anie.202010404
Abstrakt: Germanane (GeH), a germanium analogue of graphane, has recently attracted considerable interest because its remarkable combination of properties makes it an extremely suitable candidate to be used as 2D material for field effect devices, photovoltaics, and photocatalysis. Up to now, the synthesis of GeH has been conducted by substituting Ca by H in a β-CaGe 2 layered Zintl phase through topochemical deintercalation in aqueous HCl. This reaction is generally slow and takes place over 6 to 14 days. The new and facile protocol presented here allows to synthesize GeH at room temperature in a significantly shorter time (a few minutes), which renders this method highly attractive for technological applications. The GeH produced with this method is highly pure and has a band gap (E g ) close to 1.4 eV, a lower value than that reported for germanane synthesized using HCl, which is promising for incorporation of GeH in solar cells.
(© 2020 The Authors. Published by Wiley-VCH GmbH.)
Databáze: MEDLINE
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