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Green

a systemic approach to energy

Editor-in-Chief: Schlögl, Robert

Managing Editor: Tiedtke, Marion

Editorial Board: Luther, Joachim / Meng, Qingbo / Hüttl, Reinhard F. / Koumoto, Kunihito / Gasteiger, Hubert


SCImago Journal Rank (SJR) 2018: 0.248
Source Normalized Impact per Paper (SNIP) 2018: 0.421

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Low Band Gap Polymers for Roll-to-Roll Coated Organic Photovoltaics – Design, Synthesis and Characterization

Eva Bundgaard
  • Corresponding author
  • Risø National Laboratory for Sustainable Energy, Technical University of Denmark, Frederiksborgvej 399, DK-4000 Roskilde, Denmark
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Ole Hagemann
  • Risø National Laboratory for Sustainable Energy, Technical University of Denmark, Frederiksborgvej 399, DK-4000 Roskilde, Denmark
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Mikkel Jørgensen
  • Risø National Laboratory for Sustainable Energy, Technical University of Denmark, Frederiksborgvej 399, DK-4000 Roskilde, Denmark
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Frederik C. Krebs
  • Risø National Laboratory for Sustainable Energy, Technical University of Denmark, Frederiksborgvej 399, DK-4000 Roskilde, Denmark
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2011-03-10 | DOI: https://doi.org/10.1515/green.2011.005

Abstract

In this paper we present the design and synthesis of 25 new low band gap polymers. The polymers were characterized by UV-vis spectroscopy which showed optical band gaps of 2.0–0.9 eV. The polymers which were soluble enough were applied in organic photovoltaics, both small area devices with a spin coated active layer and in large area modules where all layers including the active layer were either roll-to-roll coated or printed. These experiments showed that the design of polymers compatible with roll-toroll coating is not straightforward and that there are various issues such as donor/acceptor fitting within the polymer, side chains to ensure solubility and HOMO/LUMO level alignment with the acceptor (e.g. [60]PCBM) to take into consideration.

Keywords.: Low band gap polymer; design; synthesis; organic photovoltaics

About the article

Corresponding author: Eva Bundgaard, E-mail: .


Received: 2010-09-23

Accepted: 2011-01-04

Published Online: 2011-03-10

Published in Print: 2011-03-01


Citation Information: Green, Volume 1, Issue 1, Pages 55–64, ISSN (Online) 1869-8778, ISSN (Print) 1869-876X, DOI: https://doi.org/10.1515/green.2011.005.

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