121st General Meeting of the KCS

Type Symposium
Area Polymeric Materials for Energy Applications
Room No. Room 301
Time FRI 14:50-:
Code POLY3-2
Subject Functional Polymers as Key Elements in Advanced Photovoltaics, Photodection, Photocatalysis and Battery
Authors Dong Ha Kim*, Minji Yoon1, YU JIN JANG, Ju Won Lim, Filipe Marques Mota, Huan Wang2, Zhenxing Feng3
Department of Chemistry and Nano Science, Ewha Womans University, Korea
1Foundry Material Technology Group, Samsung Electronics Co., Korea
2Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, China
3School of Chemical, Biologial and Environmental Engineering, Oregon State University, United States
Abstract Poly(3-hexyl thiophene) (P3HT) is employed as a sensitizer to generate charge carriers by upconverted light. KPFM measurements reveal that the light upconversion enabled the formation of charge carriers in P3HT, resulting in large SPV of -54.9 mV. It confirms that the energy transfer from upconverters to P3HT can positively impact on the device performance in organic solar cells. Poly(N-isopropylacrylamide) (PNIPAM) brushes were anchored on Au films by atom transfer radical polymerization and ZnO nanoparticles were immobilized on the PNIPAM layer to explore controlled photocatalytic activity. The efficiency of photocatalytic decomposition of phenol pollutant was dramatically enhanced from 10 % to 55 % upon the increase in temperature under visible light illumination. Multimetallic core@shell nanoparticles (NPs) consisting of Au core and metal-containing polyaniline (PANI) shells were prepared. These PANI coated AuNPs were sequentially mixed with selected transition metal precursors and platinum precursor solutions followed by chemical reduction to obtain uniformly distributed metal NPs on the surface with the reduced Pt usage. The AuNP@PANI@PtFe with optimized configuration exhibited about 2.5 and 6.8 times enhanced mass activity for oxygen reduction reaction and methanol oxidation reaction, respectively, compared to Pt/C. Hierarchically organized porous carbonized-Co3O4 inverse opal nanostructures are synthesized via complementary colloid and block copolymer self-assembly. These highly ordered porous inverse opal nanostructures with high surface area display synergistic properties of high energy density and promising bifunctional electrocatalytic activity toward both the oxygen reduction reaction and oxygen evolution reaction.
E-mail dhkim@ewha.ac.kr