DataVXAdvanced Energy MaterialsPaper
journal article·2016-11Open access

Organic Solar Cells: On the Effect of Prevalent Carbazole Homocoupling Defects on the Photovoltaic Performance of PCDTBT:PC 71 BM Solar Cells (Adv. Energy Mater. 21/2016)

Florian Lombeck, Hartmut Komber, Daniele Fazzi, Diego Nava, Jochen Kuhlmann, Dominik Stegerer, Karen Strassel, Josef Brandt, Amaia Diaz de Zerio Mendaza, Christian Müller, Walter Thiel, Mario Caironi, Richard Friend, Michael Sommer

Advanced Energy Materials· Volume 6· Issue 21
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Source abstract

Abstract

Unintentionally formed carbazole homocouplings occur frequently in the photovoltaic material PCDTBT when made by Suzuki polycondensation resulting in significantly lower power conversion efficiency of PCDTBT/fullerene solar cells. A likely loss mechanism that leads to reduced short circuit currents is exciton localization next to the homocoupling defect. This is reported by Michael Sommer and co-workers in article number 1601232.
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Research context

Electronic materials

OpenAlex topics: Conducting polymers and applications · Organic Electronics and Photovoltaics

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Affiliations

Makromolekulare Chemie Stefan‐Meier‐Str. 31 Universität Freiburg 79104 Freiburg Germany

Optoelectronics Group Cavendish Laboratory University of Cambridge J. J. Thomson Avenue Cambridge CB3 0HE UK

Leibniz‐Institut für Polymerforschung Dresden e.V Hohe Straße 6 01069 Dresden Germany

Max‐Planck‐Institut für Kohlenforschung Kaiser‐Wilhelm‐Platz 1 D‐45470 Mülheim an der Ruhr Germany

Center for Nano Science and Technology @PoliMi Istituto Italiano di Tecnologia Via Pascoli 70/3 Milano 20133 Italy

Politecnico di Milano Dipartimento di Fisica P.za L. da Vinci 32 Milano 20133 Italy

Department of Chemistry and Chemical Engineering Chalmers University of Technology 41296 Göteborg Sweden

Freiburger Materialforschungszentrum Stefan‐Meier‐Str. 21 79104 Freiburg Germany

Freiburger Institut für interaktive Materialien und bioinspirierte Technologien Georges‐Köhler‐Allee 105 Universität Freiburg 79110 Freiburg Germany

References

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