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- W3047434140 abstract "The development of functional optoelectronic applications based on hexagonal boron nitride nanosheets (h-BNNs) relies on controlling the structural defects. The fluorescent emission, in particular, has been observed to depend on vacancies and substitutional defects. In the present work, few-layer h-BNNs have been obtained by sonication-assisted liquid-phase exfoliation of their bulk counterpart. The as-prepared samples exhibit a weak fluorescent emission in the visible range, centred around 400 nm. Tailored defects have been introduced by oxidation in air at different temperatures. A significant increase in the fluorescent emission of the oxidated h-BNNs has been observed with maximum emissive intensity for the samples treated at 300 °C. A further increase in temperatures (>300 °C) determines a quenching of the fluorescence." @default.
- W3047434140 created "2020-08-10" @default.
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- W3047434140 date "2020-09-01" @default.
- W3047434140 modified "2023-09-23" @default.
- W3047434140 title "Defect-assisted photoluminescence in hexagonal boron nitride nanosheets" @default.
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- W3047434140 doi "https://doi.org/10.1088/2053-1583/ababf0" @default.
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