Optical and electrical properties of boron nitride oxide films

Sota, Hiroshi; Komatsu, Naoyoshi; Chikamatsu, Kentaro; Kimura, Chiharu; Aoki, Hidemitsu; Sugino, Takashi

doi:10.1016/j.diamond.2008.01.071

Cited by 7 publications

(3 citation statements)

References 20 publications

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“…This makes BNNT greatly desirable for numerous applications, viz. light weight aircraft and space vehicle bodies which are usually subjected to tremendous aerodynamic heating, thermal management of high density power electronics systems, high temperature piezoelectric sensors and high temperature field emitters 4 5 6 7 8 9 10 11 12 13 .…”

mentioning

confidence: 99%

Oxidative Unzipping and Transformation of High Aspect Ratio Boron Nitride Nanotubes into “White Graphene Oxide” Platelets

Nautiyal

Loganathan

Agrawal

et al. 2016

Sci Rep

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Morphological and chemical transformations in boron nitride nanotubes under high temperature atmospheric conditions is probed in this study. We report atmospheric oxygen induced cleavage of boron nitride nanotubes at temperatures exceeding 750 °C for the first time. Unzipping is then followed by coalescence of these densely clustered multiple uncurled ribbons to form stacks of 2D sheets. FTIR and EDS analysis suggest these 2D platelets to be Boron Nitride Oxide platelets, with analogous structure to Graphene Oxide, and therefore we term them as “White Graphene Oxide” (WGO). However, not all BNNTs deteriorate even at temperatures as high as 1000 °C. This leads to the formation of a hybrid nanomaterial system comprising of 1D BN nanotubes and 2D BN oxide platelets, potentially having advanced high temperature sensing, radiation shielding, mechanical strengthening, electron emission and thermal management applications due to synergistic improvement of multi-plane transport and mechanical properties. This is the first report on transformation of BNNT bundles to a continuous array of White Graphene Oxide nanoplatelet stacks.

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confidence: 99%

Oxidative Unzipping and Transformation of High Aspect Ratio Boron Nitride Nanotubes into “White Graphene Oxide” Platelets

Nautiyal

Loganathan

Agrawal

et al. 2016

Sci Rep

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“…Sota et al, [9] have reported that during the sample preparation of boron nitride oxide films carbon atoms may be incorporated in the lattice. This fact has motivated the molecular simulation to determine either the carbon migration into the lattice or the adsorption on the Finally, we have explored the structures when the carbon atom replaces either the boron (Figure 4a) or the nitrogen (Figure 4b).…”

Section: Analysis Of the Carbon Migration Into The Boron Nitride Oxidementioning

confidence: 99%

“…On the other hand, Sota et al [9] have prepared and characterized films of boron nitride oxide. The experimental characterization has been done using infrared spectroscopy yielding an energy gap in the regime of 5.3 a 5.9 eV with the results depending on the sample oxidation.…”

Section: Introductionmentioning

confidence: 99%

On the Electronic Properties of the Boron Nitride Oxide by Density Functional Theory

Anota¹,

Hernández²,

Rivas³

et al. 2013

j comput theor nanosci

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We analyze the electronic properties of boron nitride oxide (BNO) sheets using the density functional theory within the local density approximation, in a similar form as reported by Sota et al., [Diamond Relat. Mater. 17, 826 (2008)]. The BNO sheets with the chemical composition of B 27 N 27 H 18 +O, are represented by the circular armchair model. Six different configurations are considered to investigate the interaction of oxygen atoms with the sheets. These models depend upon the position of the O atom. In C1 the atom bonds to 2 N atoms, in C2 the atom bonds to 2 B atoms, in C3 the atom is on top of a B atom, in C4 the atom is on top of a N atom, in C5 the O bonds to a B-N dimer of a hexagon, and in C6 the O bonds to a B and to a N within the plane of the hexagon. Results of the total energy and the vibration frequency of each configuration yield C5 as the most stable structure with the formation of an epoxy group. This low energy atomic geometry displays high polarity with semiconductor behavior. By analyzing the possible carbon migration into the BNO sheet we conclude that the O is only physisorbed on the surface to form CO.

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Tuning of the Optical, Electronic, and Magnetic Properties of Boron Nitride Nanosheets with Oxygen Doping and Functionalization

et al. 2017

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Engineering of the optical, electronic, and magnetic properties of hexagonal boron nitride (h-BN) nanomaterials via oxygen doping and functionalization has been envisaged in theory. However, it is still unclear as to what extent these properties can be altered using such methodology because of the lack of significant experimental progress and systematic theoretical investigations. Therefore, here, comprehensive theoretical predictions verified by solid experimental confirmations are provided, which unambiguously answer this long-standing question. Narrowing of the optical bandgap in h-BN nanosheets (from ≈5.5 eV down to 2.1 eV) and the appearance of paramagnetism and photoluminescence (of both Stokes and anti-Stokes types) in them after oxygen doping and functionalization are discussed. These results are highly valuable for further advances in semiconducting nanoscale electronics, optoelectronics, and spintronics.

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Optical and electrical properties of boron nitride oxide films

Cited by 7 publications

References 20 publications

Oxidative Unzipping and Transformation of High Aspect Ratio Boron Nitride Nanotubes into “White Graphene Oxide” Platelets

Oxidative Unzipping and Transformation of High Aspect Ratio Boron Nitride Nanotubes into “White Graphene Oxide” Platelets

On the Electronic Properties of the Boron Nitride Oxide by Density Functional Theory

Tuning of the Optical, Electronic, and Magnetic Properties of Boron Nitride Nanosheets with Oxygen Doping and Functionalization

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