Photovoltaic contribution of photo-generated excitons in acceptor material of organic solar cells

  • Monishka Narayan
  • Jai Singh


Contribution of exciton generation in acceptor material to the photovoltaic performance of three bulk-heterojunction organic solar cells (BHJ OSCs), PTB7:PC71BM, P3HT:ICBA and P3HT:PC61BM are studied. Singlet and triplet rates of absorption and dissociation and diffusion lengths are calculated and compared with those when excitons are generated in the donor of these BHJ OSCs. It is found that the rates of absorption and dissociation and diffusion lengths are comparable whether excitons are generated in donor or acceptor of these BHJ OSCs. Therefore, it is proposed that the contribution of exciton generation in acceptor may not be negligible.


High Occupied Molecular Orbital Lower Unoccupied Molecular Orbital Diffusion Length Organic Solar Cell Transition Matrix Element 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



Authors are indebted to Professors Richard Williams and Andrey Vasiliev for very useful e-mail discussions during the course of revision of this manuscript.


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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.School of Engineering and ITCharles Darwin UniversityDarwinAustralia

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