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  Controlling Catalyst Bulk Reservoir Effects for Monolayer Hexagonal Boron Nitride CVD

Caneva, S., Weatherup, R. S., Bayer, B. C., Blume, R., Cabrero-Vilatela, A., Braeuninger-Weimer, P., et al. (2016). Controlling Catalyst Bulk Reservoir Effects for Monolayer Hexagonal Boron Nitride CVD. Nano Letters, 16(2), 1250-1261. doi:10.1021/acs.nanolett.5b04586.

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 Creators:
Caneva, Sabina1, Author
Weatherup, Robert S.1, 2, Author
Bayer, Bernhard C.1, 3, Author
Blume, Raoul4, 5, Author              
Cabrero-Vilatela, Andrea 1, Author
Braeuninger-Weimer, Philipp 1, Author
Martin, Marie-Blandine1, Author
Wang, Ruizhi 1, Author
Baehtz, Carsten 6, Author
Schlögl, Robert4, Author              
Meyer, Jannik C.3, Author
Hofmann, Stephan 1, Author
Affiliations:
1Department of Engineering, University of Cambridge, JJ Thomson Avenue, CB3 0FA Cambridge, United Kingdom, ou_persistent22              
2Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States, ou_persistent22              
3Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria, ou_persistent22              
4Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              
5Abt. Solarenergieforschung, Helmhotz-Zentrum Berlin, ou_persistent22              
6Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, 01314 Dresden, Germany, ou_persistent22              

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 Abstract: Highly controlled Fe-catalyzed growth of monolayer hexagonal boron nitride (h-BN) films is demonstrated by the dissolution of nitrogen into the catalyst bulk via NH3 exposure prior to the actual growth step. This “pre-filling” of the catalyst bulk reservoir allows us to control and limit the uptake of B and N species during borazine exposure and thereby to control the incubation time and h-BN growth kinetics while also limiting the contribution of uncontrolled precipitation-driven h-BN growth during cooling. Using in situ X-ray diffraction and in situ X-ray photoelectron spectroscopy combined with systematic growth calibrations, we develop an understanding and framework for engineering the catalyst bulk reservoir to optimize the growth process, which is also relevant to other 2D materials and their heterostructures.

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 Dates: 2015-11-102016-01-122016-02-10
 Publication Status: Published in print
 Pages: 12
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/acs.nanolett.5b04586
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Title: Nano Letters
  Abbreviation : Nano Lett.
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: 12 Volume / Issue: 16 (2) Sequence Number: - Start / End Page: 1250 - 1261 Identifier: ISSN: 1530-6984
CoNE: https://pure.mpg.de/cone/journals/resource/110978984570403