Cited 5 time in webofscience Cited 4 time in scopus

Fluorescent N-Doped Graphene Quantum Dots Embedded in Transparent Polymer Films for Photon-Downconversion Applications

Title
Fluorescent N-Doped Graphene Quantum Dots Embedded in Transparent Polymer Films for Photon-Downconversion Applications
Authors
Nazim, MohammedKim, Jae Hyun
DGIST Authors
Nazim, Mohammed; Kim, Jae Hyun
Issue Date
2020-03
Citation
ACS Applied Nano Materials, 3(3), 2322-2335
Type
Article
Article Type
Article
Author Keywords
agglomerationclick reactionhomogeneoushydrophobicnitrogen-doped graphene quantum dotsthiol-ene chemistrypolymer nanocomposite
Keywords
THIOL-ENE CHEMISTRYCLICK CHEMISTRYOXIDECOATINGSPERFORMANCEPHOTOPOLYMERIZATIONPHOTOLUMINESCENCEPOLYETHYLENEIMINENANOCOMPOSITESFABRICATION
ISSN
2574-0970
Abstract
In this work, we demonstrate a simple, facile, and efficient one-pot synthesis of polymer-quantum dot nanocomposite films where nitrogen-doped graphene quantum dots (N-GQDs) were homogeneously dispersed in UV-curable, transparent polymer host matrix via the thiol-ene "click" reaction pathway. The highly fluorescent NOA-NGQD nanocomposite films exhibited strong hydrophobicity with water contact angle (>69 degrees) owing to restructuring of the polymer chain networks. The various functional groups of the N-GQD surface, as carbonyl, amine, and hydroxyl groups, provided more interactive sites and low agglomeration to develop the strong electrostatic interactions between the NOA and N-GQDs, resulting in flexible NOA-NGQDs nanocomposites. Thus, obtained NOA-NGQD nanocomposites exhibited high transparency (>90%), low band-gap, and strong fluorescence spectral peak (>500 nm) after the homogeneous inclusion of N-GQDs in the NOA polymer matrix. This study paves the way to diverse applications of functionalized GQDs as well as transparent polymers for the development of hydrophobic polymer-QD nanocomposites by using UV catalyzed thiol-ene chemistry. Hence, as synthesized nanocomposite films would be widely applicable in flexible electronic display devices, light emitting diodes (LEDs), and optoelectronic applications.
URI
http://hdl.handle.net/20.500.11750/12784
DOI
10.1021/acsanm.9b02436
Publisher
American Chemical Society
Related Researcher
  • Author Kim, Jae Hyun  
  • Research Interests 에너지, 배터리, 고체전해질, 태양전지, 전기차, 리튬이온배터리
Files:
There are no files associated with this item.
Collection:
Division of Energy Technology1. Journal Articles


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