Synthesis of polyfluorenes by oxidative polymerization, their characterization and implementation in organic solar cells

Polyfluorene materials have demonstrated to be important components in the fabrication of organic solar cell devices, in both: the active and electron transport layers. The oxidative synthesis as well as optical and electrical properties of new polyfluorene copolymers containing 2,2′-(9,9-dioctyl-9...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2019-02, Vol.30 (3), p.2716-2725
Main Authors: Espinosa-Roa, Arián, Cruz-Carrillo, María de Jesús, Ledesma-Juárez, Arelis, Montoya del Angel, Alejandra, Romero-Borja, Daniel, Güizado-Rodríguez, Marisol, Rodríguez, Mario, Galindo, Rosario, Maldonado, José Luis, Barba, Victor
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemical synthesis
Chemistry and Materials Science
Copolymers
Density distribution
Donor materials
Electrical properties
Electron transport
Energy gap
Materials Science
Molecular orbitals
Open circuit voltage
Optical and Electronic Materials
Optical properties
Organic chemistry
Photovoltaic cells
Polymers
Solar cells
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Polyfluorene materials have demonstrated to be important components in the fabrication of organic solar cell devices, in both: the active and electron transport layers. The oxidative synthesis as well as optical and electrical properties of new polyfluorene copolymers containing 2,2′-(9,9-dioctyl-9 H -fluorene-2,7-diyl) bistiophene and 3-alkylthiophene, alkyl = hexyl ( PA1) and octyl ( PA2 ) or 3,4-ethylenedioxythiophene (EDOT) ( PM) were investigated. Changes in the HOMO–LUMO energy gap promoted for the insertion of EDOT ring were studied in thick film by using cyclic-voltammetry measurements and compared with the optical properties analyzed by UV–Visible spectroscopy. DFT calculations were used to investigate the possible electronic density distribution and conformational parameter for repetition units into the polymeric structure. Finally, these polymer were preliminary evaluated as donor materials into organic solar cells with architecture ITO/PEDOT:PSS/co-polymer:PC 71 BM/Field’s metal. Photovoltaic devices showed a very acceptable open circuit voltage (V oc ) value, up to 0.92 V.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-018-0547-2