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Issue 48, 2018
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Synthesis of fluorescent conjugated polymer nanoparticles and their immobilization on a substrate for white light emission

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Abstract

Fluorescent conjugated polymers (CPs) for blue, green, and red emission were polymerized via the Suzuki coupling reaction. Their chemical structures were based on a phenylene unit in the backbone and thus could be excited at the same wavelength to fluoresce their own emission colors. The resultant polymers were fabricated into conjugated polymer dots (CPdots), maintaining their emission colors of red, green, and blue. The CPdots were immobilized on electrospun nanofibers or glass slides to fabricate white-light-emitting materials under single-wavelength excitation. The immobilization on the substrate could effectively avoid the unnecessary energy transfer from a short to a long wavelength emission, which has been known to be an obstacle for white emission when using mixed colors. White light emission (WLE) was successfully attained using spatially separated CPdots located on the nanofibers and on the glass. WLE upon excitation of a blue light-emitting diode (LED) lamp was demonstrated, pointing to a potential application for flexible white illumination.

Graphical abstract: Synthesis of fluorescent conjugated polymer nanoparticles and their immobilization on a substrate for white light emission

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Publication details

The article was received on 10 Sep 2018, accepted on 09 Nov 2018 and first published on 12 Nov 2018


Article type: Paper
DOI: 10.1039/C8PY01314D
Citation: Polym. Chem., 2018,9, 5671-5679
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    Synthesis of fluorescent conjugated polymer nanoparticles and their immobilization on a substrate for white light emission

    C. Kim, Y. J. Gwon, J. Kim and T. S. Lee, Polym. Chem., 2018, 9, 5671
    DOI: 10.1039/C8PY01314D

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