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Polymers 2018, 10(7), 737;

White-Light Emission of Dye-Doped Polymer Submicronic Fibers Produced by Electrospinning

Group of Functional Nanostructures, National Institute of Materials Physics, Atomistilor 405A, P.O. Box MG-7, 077125 Magurele-Bucharest, Romania
Author to whom correspondence should be addressed.
Received: 31 May 2018 / Revised: 29 June 2018 / Accepted: 2 July 2018 / Published: 4 July 2018
(This article belongs to the Special Issue Electrospinning of Nanofibres)
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Lighting and display technologies are evolving at tremendous rates nowadays; new device architectures based on new, microscopic building blocks are being developed. Besides high light-emission efficiencies, qualities including low cost, low environmental impact, flexibility, or lightweightness are sought for developing new types of devices. Electrospun polymer fibers represent an interesting type of such microscopic structures that can be employed in developing new functionalities. White-light-emitting fiber mats were prepared by the electrospinning of different dye-doped polymer solutions. Two approaches were used in order to obtain white-light emissions: the overlapping of single-dye-doped electrospun fiber mats, and the electrospinning of mixtures of different ratios of single-dye-doped polymer solutions. Scanning electron microscopy (SEM) was used to investigate the morphologies of the electrospun fibers with diameters ranging between 300 nm and 1 µm. Optical absorption and photoluminescence (PL) were evaluated for single-dye-doped submicronic fiber mats, for overlapping mats, and for fiber mats obtained from different compositions of mixtures. Depending on the ratios of the mixtures of different dyes, the luminance was balanced between blue and red emissions. Commission Internationale de L’Eclairage (CIE) measurements depict this fine-tuning of the colors’ intensities, and the right composition for white-light emission of the submicronic fiber mats was found. View Full-Text
Keywords: electrospinning; dye-doped polymer; submicronic fibers; white-light emission; tunable luminescence electrospinning; dye-doped polymer; submicronic fibers; white-light emission; tunable luminescence

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Enculescu, M.; Evanghelidis, A.; Enculescu, I. White-Light Emission of Dye-Doped Polymer Submicronic Fibers Produced by Electrospinning. Polymers 2018, 10, 737.

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