Molecular design for improved photovoltaic efficiency: Band gap and absorption coefficient engineering

Rajib Mondal, Sangwon Ko, Joseph E. Norton, Nobuyuki Miyaki, Hector A. Becerril, Eric Verploegen, Michael F. Toney, Jean Luc Brédas, Michael D. McGehee, Zhenan Bao*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

71 Scopus citations


Removing the adjacent thiophene groups around the acceptor core in low band gap polymers significantly enhances solar cell efficiency through increasing the optical absorption and raising the ionization potential of the polymer.

Original languageEnglish (US)
Pages (from-to)7195-7197
Number of pages3
JournalJournal of Materials Chemistry
Issue number39
StatePublished - 2009
Externally publishedYes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This publication was partially based on work supported by the Center for AdvancedMolecular Photovoltaics, Award No KUS-C1015-21, made by King Abdullah University of Science and Technology (KAUST). We also acknowledge support from the Global Climate and Energy Program (GCEP) and the Stanford Center for Polymer Interfaces and Macromolecular Assemblies (CPIMA). Portions of this research were carried out at the Stanford Synchrotron Radiation Lightsource, a national user facility operated by Stanford University on behalf of the U. S. Department of Energy, Office of Basic Energy Sciences. R. M. thanks Jack E. Parmer, George Margulis, and Eric Hoke for their help.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

ASJC Scopus subject areas

  • General Chemistry
  • Materials Chemistry


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