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Polymer Carbon Dots for Next Generation White Light Emitting Devices

Perikala, M and Bhardwaj, A (2021) Polymer Carbon Dots for Next Generation White Light Emitting Devices. In: 21st IEEE International Conference on Nanotechnology, NANO 2021, 28-30 Jul 2021, Montreal28, pp. 356-359.

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Official URL: https://doi.org/10.1109/NANO51122.2021.9514290


Fluorescent Carbon dots (CDs), a young member of Carbon nanomaterial family has gained a lot of research attention across the globe due to its highly luminescent emission properties, non-toxic behavior, stable emission properties and zero re-absorption losses. These dots have potential to replace the use of traditional semiconductor quantum dots in white light emitting devices. For successful application of these dots in White LEDs it is highly essential to synthesize luminescent CDs and CDphosphor with higher Quantum yields (QY). Immense research is going on across the globe in enhancing the optical properties of CDs and CD phosphor by proper surface functionalization and passivation of CD surface. In this paper we report successful fabrication of single system white light emitting CDs, CD phosphor and two different schemes to enhance the Quantum yield of fabricated CDs and CD phosphor by modifying the CD surface. The so fabricated CDs and CD phosphor emit white light under UV-illumination. Further the fabricated CDs and CD phosphor are characterized using UV-absorption emission spectroscopies and the quality of white light obtained from CDs and CD phosphor is characterized using CIE chromatic co-ordinates. © 2021 IEEE.

Item Type: Conference Paper
Publication: Proceedings of the IEEE Conference on Nanotechnology
Publisher: IEEE Computer Society
Additional Information: The copyright for this article belongs to IEEE Computer Society
Keywords: Carbon; Current density; Electrooptical devices; Fabrication; Luminescence; Nanotechnology; Optical emission spectroscopy; Optical properties; Phosphors; Quantum yield; Semiconductor quantum dots, Luminescent emission; Polymer carbon; Re-absorption; Stable emissions; Surface Functionalization; UV illuminations; White light emitting device; White light-emitting, Organic light emitting diodes (OLED)
Department/Centre: Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited: 03 Dec 2021 08:28
Last Modified: 03 Dec 2021 08:28
URI: http://eprints.iisc.ac.in/id/eprint/70203

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