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Boron-doped carbon nanoparticles: Size-independent color tunability from red to blue and bioimaging applications

Sadhanala, Hari Krishna and Nanda, Karuna Kar (2016) Boron-doped carbon nanoparticles: Size-independent color tunability from red to blue and bioimaging applications. In: CARBON, 96 . pp. 166-173.

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Official URL: http://dx.doi.org/10.1016/j.carbon.2015.08.096

Abstract

Here, we report the hydrothermal synthesis of boron-doped CNPs (B-CNPs) with different size/atomic percentage of doping and size-independent color tunability from red to blue. The variation of size/atomic percentage of B is achieved by simply varying the reaction time, while the color tunability is obtained by diluting the solution. With dilution, the luminescence spectra are not only blue-shifted, the intensity increases as well. The huge blue-shift in the emission energy (similar to 1 eV) is believed to be due to the increase in the interparticle distance. The quantum yield with optimum dilution is found to increase with boron doping though it is very low as compared to CNPs and nitrogen-doped CNPs. Finally, we show that B-CNPs with a quantum yield of 0.5% can be used for bioimaging applications. (C) 2015 Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Depositing User: Id for Latest eprints
Date Deposited: 07 Jan 2016 07:29
Last Modified: 07 Jan 2016 07:29
URI: http://eprints.iisc.ac.in/id/eprint/53029

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