TY - JOUR
T1 - Synthesis of 2D Germanane (GeH)
T2 - a New, Fast, and Facile Approach
AU - Giousis, Theodosis
AU - Potsi, Georgia
AU - Kouloumpis, Antonios
AU - Spyrou, Konstantinos
AU - Georgantas, Yiannis
AU - Chalmpes, Nikolaos
AU - Dimos, Konstantinos
AU - Antoniou, Myrsini Kiriaki
AU - Papavassiliou, Georgios
AU - Bourlinos, Athanasios B.
AU - Kim, Hae Jin
AU - Wadi, Vijay Kumar Shankarayya
AU - Alhassan, Saeed
AU - Ahmadi, Majid
AU - Kooi, Bart J.
AU - Blake, Graeme
AU - Balazs, Daniel M.
AU - Loi, Maria A.
AU - Gournis, Dimitrios
AU - Rudolf, Petra
N1 - Funding Information:
This work received support from the “Top Research School” programme of the Zernike Institute for Advanced Materials under the Bonus Incentive Scheme (BIS) of the Netherlands’ Ministry of Education, Science, and Culture. We acknowledge support for this work by the project MIS 5002772, implemented under the Action “Reinforcement of the Research and Innovation Infrastructure”, funded by the Operational Programme “Competitiveness, Entrepreneurship and Innovation” (NSRF 2014‐2020) and co‐financed by Greece and the European Union (European Regional Development Fund). NC gratefully acknowledges the IKY Foundation for the financial support. This research was co‐financed by Greece and the European Union (European Social Fund—ESF) through the Operational Programme “Human Resources Development, Education and Lifelong Learning” in the context of the project “Strengthening Human Resources Research Potential via Doctorate Research” (MIS‐5000432), implemented by the State Scholarships Foundation (IKY).
Publisher Copyright:
© 2020 The Authors. Published by Wiley-VCH GmbH
PY - 2021/1/4
Y1 - 2021/1/4
N2 - 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-CaGe2 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 (Eg) 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.
AB - 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-CaGe2 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 (Eg) 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.
KW - germanane
KW - semiconductors
KW - synthesis
KW - topotatic de-intercalation
KW - two-dimensional materials
UR - https://www.scopus.com/pages/publications/85096637109
U2 - 10.1002/anie.202010404
DO - 10.1002/anie.202010404
M3 - Article
C2 - 32866319
AN - SCOPUS:85096637109
SN - 1433-7851
VL - 60
SP - 360
EP - 365
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 1
ER -
SDG 7 Affordable and Clean Energy