NDA@SZTAKI

Time dependent decomposition of ammonia borane for the controlled production of 2D hexagonal boron nitride

Babenko, Vitaliy

Lane, George

KoĂłs, Antal Adolf

Murdock, Adrian T.

So, Karwei

Britton, Jude

Meysami, Seyyed Shayan

Moffat, Jonathan

Grobert, Nicole

Nature Publishing Group

2017

QC06 Physics of condensed matter / szilárdtestfizika

Ammonia borane (AB) is among the most promising precursors for the large-scale synthesis of hexagonal boron nitride (h-BN) by chemical vapour deposition (CVD). Its non-toxic and non-flammable properties make AB particularly attractive for industry. AB decomposition under CVD conditions, however, is complex and hence has hindered tailored h-BN production and its exploitation. To overcome this challenge, we report in-depth decomposition studies of AB under industrially safe growth conditions. In situ mass spectrometry revealed a time and temperature-dependent release of a plethora of NxBy-containing species and, as a result, significant changes of the N:B ratio during h-BN synthesis. Such fluctuations strongly influence the formation and morphology of 2D h-BN. By means of in situ gas monitoring and regulating the precursor temperature over time we achieve uniform release of volatile chemical species over many hours for the first time, paving the way towards the controlled, industrially
viable production of h-BN.

magyar

Article

PeerReviewed

info:eu-repo/semantics/article

text

http://real.mtak.hu/71841/1/Babenco-BN-SciRep17.pdf

Babenko, Vitaliy and Lane, George and KoĂłs, Antal Adolf and Murdock, Adrian T. and So, Karwei and Britton, Jude and Meysami, Seyyed Shayan and Moffat, Jonathan and Grobert, Nicole (2017) Time dependent decomposition of ammonia borane for the controlled production of 2D hexagonal boron nitride. SCIENTIFIC REPORTS, 7. pp. 1-12. ISSN 2045-2322

http://real.mtak.hu/71841/

https://doi.org/:10.1038/s41598-017-14663-8