Beyond Donor-Acceptor (D-A) Approach: Structure-Optoelectronic Properties-Organic Photovoltaic Performance Correlation in New D-A1-D-A2 Low-Bandgap Conjugated Polymers

Journal article
(Original article)


Publication Details

Author(s): Chochos CL, Drakopoulou S, Katsouras A, Squeo BM, Sprau C, Colsmann A, Gregoriou VG, Cando AP, Allard S, Scherf U, Gasparini N, Kazerouni N, Ameri T, Brabec C, Avgeropoulos A
Journal: Macromolecular Rapid Communications
Publisher: Wiley-VCH Verlag
Publication year: 2017
Volume: 38
Journal issue: 7
ISSN: 1521-3927
Language: English


Abstract


Low-bandgap near-infrared polymers are usually synthesized using the common donor-acceptor (D-A) approach. However, recently polymer chemists are introducing more complex chemical concepts for better fine tuning of their optoelectronic properties. Usually these studies are limited to one or two polymer examples in each case study so far, though. In this study, the dependence of optoelectronic and macroscopic (device performance) properties in a series of six new D-A-D-A low bandgap semiconducting polymers is reported for the first time. Correlation between the chemical structure of single-component polymer films and their optoelectronic properties has been achieved in terms of absorption maxima, optical bandgap, ionization potential, and electron affinity. Preliminary organic photovoltaic results based on blends of the D-A-D-A polymers as the electron donor mixed with the fullerene derivative [6,6]-phenyl-C-butyric acid methyl ester demonstrate power conversion efficiencies close to 4% with short-circuit current densities (J ) of around 11 mA cm, high fill factors up to 0.70, and high open-circuit voltages (V s) of 0.70 V. All the devices are fabricated in an inverted architecture with the photoactive layer processed in air with doctor blade technique, showing the compatibility with roll-to-roll large-scale manufacturing processes.



FAU Authors / FAU Editors

Ameri, Tayebeh Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Brabec, Christoph Prof. Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Gasparini, Nicola
Institute Materials for Electronics and Energy Technology (i-MEET)
Kazerouni, Negar
Institute Materials for Electronics and Energy Technology (i-MEET)


External institutions with authors

Bergische Universität Wuppertal
Karlsruhe Institute of Technology (KIT)
University of Ioannina / Πανεπιστήμιο Ιωαννίνων


How to cite

APA:
Chochos, C.L., Drakopoulou, S., Katsouras, A., Squeo, B.M., Sprau, C., Colsmann, A.,... Avgeropoulos, A. (2017). Beyond Donor-Acceptor (D-A) Approach: Structure-Optoelectronic Properties-Organic Photovoltaic Performance Correlation in New D-A1-D-A2 Low-Bandgap Conjugated Polymers. Macromolecular Rapid Communications, 38(7). https://dx.doi.org/10.1002/marc.201600720

MLA:
Chochos, Christos L., et al. "Beyond Donor-Acceptor (D-A) Approach: Structure-Optoelectronic Properties-Organic Photovoltaic Performance Correlation in New D-A1-D-A2 Low-Bandgap Conjugated Polymers." Macromolecular Rapid Communications 38.7 (2017).

BibTeX: 

Last updated on 2018-10-11 at 20:50