Plasmonic enhanced organic solar cells

Shiva Shahin, Palash Gangopadhyay, Robert A. Norwood

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations


Organic bulk-heterojunction solar cells have several good characteristics, such as ease of fabrication, and low-cost materials. However, the bottleneck in their adoption is their much lower efficiency as compared with their silicon counterparts. In our previous work, we demonstrated that by appropriately inserting AuNPs in the OPV device, the efficiency can be increased by 30% and that silanization of ITO positively impacts device performance, where we identified the field enhancement due to AuNPs as the main reason for the increase in the efficiency of the device. In this work, we further investigate the impact of self-assembly of the gold nanoparticles on the efficiency by also considering two other factors which can possibly contribute to the improvement of our structure's performance. One is the change in the substrate's workfunction after silanization, and the other factor is the variations in PEDOT: PSS characteristics due to the AuNPs' plasmonic resonance. We conclude that the AuNPs not only increase the photon absorption efficiency but also increase the conductivity of the surrounding medium (PEDOT: PSS) thereby facilitating charge transport through PEDOT.

Original languageEnglish (US)
Title of host publicationNext Generation (Nano) Photonic and Cell Technologies for Solar Energy Conversion III
StatePublished - 2012
EventNext Generation (Nano) Photonic and Cell Technologies for Solar Energy Conversion III - San Diego, CA, United States
Duration: Aug 12 2012Aug 14 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherNext Generation (Nano) Photonic and Cell Technologies for Solar Energy Conversion III
Country/TerritoryUnited States
CitySan Diego, CA


  • Gold nanoparticles
  • Organic bulk heterojunction photovoltaics
  • Plasmonics
  • Solar cells

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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