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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/24180

Title: Direct nucleation of hexagonal boron nitride on diamond: Crystalline properties of hBN nanowalls
Authors: Hoang, Duc-Quang
Korneychuk, Svetlana
Kamatchi Jothiramalingam, Sankaran
Pobedinskas, Paulius
Drijkoningen, Sien
Turner, Stuart
Van Bael, Marlies K.
Verbeeck, Johan
Nicley, Shannon S.
Haenen, Ken
Issue Date: 2017
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Citation: ACTA MATERIALIA, 127, p. 17-24
Abstract: Hexagonal boron nitride (hBN) nanowalls were deposited by unbalanced radio frequency sputtering on (100)-oriented silicon, nanocrystalline diamond films, and amorphous silicon nitride (Si3N4) membranes. The hBN nanowall structures were found to grow vertically with respect to the surface of all of the substrates. To provide further insight into the nucleation phase and possible lattice distortion of the deposited films, the structural properties of the different interfaces were characterized by transmission electron microscopy. For Si and Si3N4 substrates, turbostratic and amorphous BN phases form a clear transition zone between the substrate and the actual hBN phase of the bulk nanowalls. However, surprisingly, the presence of these phases was suppressed at the interface with a nanocrystalline diamond film, leading to a direct coupling of hBN with the diamond surface, independent of the vertical orientation of the diamond grain. To explain these observations, a growth mechanism is proposed in which the hydrogen terminated surface of the nanocrystalline diamond film leads to a rapid formation of the hBN phase during the initial stages of growth, contrary to the case of Si and Si3N4 substrates. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Notes: [Duc-Quang Hoang; Sankaran, Kamatchi Jothiramalingam; Pobedinskas, Paulius; Drijkoningen, Sien; Van Bael, Marlies K.; Nicley, Shannon S.; Haenen, Ken] Hasselt Univ, Inst Mat Res IMO, Diepenbeek, Belgium. [Duc-Quang Hoang; Sankaran, Kamatchi Jothiramalingam; Pobedinskas, Paulius; Drijkoningen, Sien; Van Bael, Marlies K.; Nicley, Shannon S.; Haenen, Ken] IMO1VIEC, IMEC VZW, Diepenbeek, Belgium. [Korneychuk, Svetlana; Turner, Stuart; Verbeeck, Johan] Univ Antwerp, Elect Microscopy Mat Sci EMAT, Antwerp, Belgium.
URI: http://hdl.handle.net/1942/24180
DOI: 10.1016/j.actamat2017.01.002
ISI #: 000397362600002
ISSN: 1359-6454
Category: A1
Type: Journal Contribution
Appears in Collections: Research publications

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