Fullerene-capped copolymers for bulk heterojunctions: device stability and efficiency improvements
EROTHU, Harikrishna
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
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Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
EROTHU, Harikrishna
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
CRAMAIL, Henri
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
CLOUTET, Eric
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
< Réduire
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
Langue
en
Article de revue
Ce document a été publié dans
Journal of Materials Chemistry A. 2015, vol. 3, n° 35, p. 18207-18221
Royal Society of Chemistry
Résumé en anglais
A fullerene end-capped polymer-compatibilizer based on poly(3-hexylthiophene) (P3HT) was synthesized and demonstrated to have a remarkable effect on both the stability and efficiency of devices made from exemplar P3HT and ...Lire la suite >
A fullerene end-capped polymer-compatibilizer based on poly(3-hexylthiophene) (P3HT) was synthesized and demonstrated to have a remarkable effect on both the stability and efficiency of devices made from exemplar P3HT and [6,6]-phenyl C-61-butyric acid methyl ester (PCBM). P3HT with ethynyl chain-ends and alpha-azido-omega-bromo-PS were prepared via Grignard metathesis (GRIM) and atom transfer radical polymerisation, respectively. "Click" chemistry resulted in the preparation of poly(3-hexylthiophene)block- omega-bromo-polystyrene (P3HT-b-PS-Br), and subsequent atom transfer radical addition chemistry with fullerene (C-60) yielded the donor-acceptor block copolymer P3HT-b-PS-C-60. Both P3HT-b-PS-Br and P3HT-b-PS-C-60 were considered as compatibilizers with P3HT/PCBM blends, with the study detailing effects on active-layer morphology, device efficiency and stability. When used at low concentrations, both P3HT-b-PS-Br (1%) and P3HT-b-PS-C-60 (0.5%) resulted in considerable 28% and 35% increases in efficiencies with respect to devices made from P3HT/PCBM alone. Furthermore, P3HT-b-PS-C-60 (0.5%) resulted in an important improvement in device stability.< Réduire
Mots clés en anglais
ORGANIC PHOTOVOLTAICS
MORPHOLOGY
POLY(3-HEXYLTHIOPHENE)
PERFORMANCE
COIL BLOCK-COPOLYMERS
POLYMER SOLAR-CELLS
MOLECULAR-WEIGHT DISTRIBUTIONS
CLICK-CHEMISTRY
ROD-COIL
PHOTOVOLTAIC APPLICATIONS
Origine
Importé de halUnités de recherche