Electronic Properties and Photovoltaic Performances of a Series of Oligothiophene Copolymers Incorporating Both Thieno[3,2-b]thiophene and 2,1,3-Benzothiadiazole Moieties
CHOCHOS, Christos L.
Ecole nationale supérieure de chimie, polymères et materiaux de strasbourg (ECPM)
Ecole nationale supérieure de chimie, polymères et materiaux de strasbourg (ECPM)
HADZIIOANNOU, Georges
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
See more >
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
CHOCHOS, Christos L.
Ecole nationale supérieure de chimie, polymères et materiaux de strasbourg (ECPM)
Ecole nationale supérieure de chimie, polymères et materiaux de strasbourg (ECPM)
HADZIIOANNOU, Georges
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
< Reduce
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
Language
en
Article de revue
This item was published in
Macromolecular Rapid Communications. 2010, vol. 31, n° 7, p. 651-656
Wiley-VCH Verlag
English Abstract
A series of donor-acceptor alternated conjugated copolymers, composed of thiophene, bithio-phene, thieno[3,2-b]thiophene, and 2,1,3-benzothiadiazole units and differing from each other by the nature and the number of ...Read more >
A series of donor-acceptor alternated conjugated copolymers, composed of thiophene, bithio-phene, thieno[3,2-b]thiophene, and 2,1,3-benzothiadiazole units and differing from each other by the nature and the number of 3-alkylthiophene in the backbone, have been synthesized by Stille cross-coupling polymerization. The material's optical and electrochemical properties, in solution and in thin films, have been investigated using UV-Visible absorption and cyclic voltammetry. Bulk heterojunction solar cells using blends of the newly synthesized copolymers, as electron donor, and C60-PCBM or C70-PCBM, as electron transporting material, have been elaborated. A maximum power conversion efficiency of 1.8% is achieved with a 1:4 PPBzT(2)-C12:C70-PCBM weight ratio.Read less <
English Keywords
photovoltaics
open circuit voltage
bulk heterojunction
conjugated polymers
low-band gap copolymer
Origin
Hal imported