High‐Performing Polycarbazole Derivatives for Efficient Solution‐Processing of Organic Solar Cells in Air

Ignasi Burgués‐Ceballos; Felix Hermerschmidt; Alexander V. Akkuratov; Diana K. Susarova; Pavel A. Troshin; Stelios A. Choulis

doi:10.1002/cssc.201501128

journal article Dec 01, 2015

High‐Performing Polycarbazole Derivatives for Efficient Solution‐Processing of Organic Solar Cells in Air

Ignasi Burgués‐Ceballos Felix Hermerschmidt

Alexander V. Akkuratov Diana K. Susarova Pavel A. Troshin Stelios A. Choulis

ChemSusChem Vol. 8 No. 24 pp. 4209-4215 · Wiley

View at Publisher Save 10.1002/cssc.201501128

Abstract

AbstractThe application of conjugated materials in organic photovoltaics (OPVs) is usually demonstrated in lab‐scale spin‐coated devices that are processed under controlled inert conditions. Although this is a necessary step to prove high efficiency, testing of promising materials in air should be done in the early stages of research to validate their real potential for low‐cost, solution‐processed, and large‐scale OPVs. Also relevant for approaching commercialization needs is the use of printing techniques that are compatible with upscaling. Here, solution processing of organic solar cells based on three new poly(2,7‐carbazole) derivatives is efficiently transferred, without significant losses, to air conditions and to several deposition methods using a simple device architecture. High efficiencies in the range between 5.0 % and 6.3 % are obtained in (rigid) spin‐coated, doctor‐bladed, and (flexible) slot‐die‐coated devices, which surpass the reference devices based on poly[N‐9′‐heptadecanyl‐2,7‐carbazole‐alt‐5,5‐(4′,7′‐di‐2‐thienyl‐2′,1′,3′‐benzothiadiazole)] (PCDTBT). In contrast, inkjet printing does not provide reliable results with the presented polymers, which is attributed to their high molecular weight. When the device area in the best‐performing system is increased from 9 mm2 to 0.7 cm2, the efficiency drops from 6.2 % to 5.0 %. Photocurrent mapping reveals inhomogeneous current generation derived from changes in the thickness of the active layer.

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Details

Published: Dec 01, 2015
Vol/Issue: 8(24)
Pages: 4209-4215
License: View

Authors

I

Ignasi Burgués‐Ceballos

Molecular Electronics and Photonics Research Unit Department of Mechanical Engineering and Materials Science and Engineering Cyprus University of Technology 45 Kitiou Kyprianou Street Limassol 3041 Cyprus

F

Felix Hermerschmidt

Molecular Electronics and Photonics Research Unit Department of Mechanical Engineering and Materials Science and Engineering Cyprus University of Technology 45 Kitiou Kyprianou Street Limassol 3041 Cyprus

A

Alexander V. Akkuratov

Institute for Problems of Chemical Physics Russian Academy of Sciences Semenov Prospect 1 Chernogolovka Moscow region 142432 Russia

D

Diana K. Susarova

Institute for Problems of Chemical Physics Russian Academy of Sciences Semenov Prospect 1 Chernogolovka Moscow region 142432 Russia

P

Pavel A. Troshin

Institute for Problems of Chemical Physics Russian Academy of Sciences Semenov Prospect 1 Chernogolovka Moscow region 142432 Russia

S

Stelios A. Choulis

Molecular Electronics and Photonics Research Unit Department of Mechanical Engineering and Materials Science and Engineering Cyprus University of Technology 45 Kitiou Kyprianou Street Limassol 3041 Cyprus

Funding

Russian Science Foundation Award: 14-13-01031

European Regional Development Fund

Republic of Cyprus through the Research Promotion Foundation

Cite This Article

Ignasi Burgués‐Ceballos, Felix Hermerschmidt, Alexander V. Akkuratov, et al. (2015). High‐Performing Polycarbazole Derivatives for Efficient Solution‐Processing of Organic Solar Cells in Air. ChemSusChem, 8(24), 4209-4215. https://doi.org/10.1002/cssc.201501128

High‐Performing Polycarbazole Derivatives for Efficient Solution‐Processing of Organic Solar Cells in Air

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