Gold nanorod enhanced organic photovoltaics: The importance of morphology effects

Robert C. Wadams, Chun Wan Yen, Dennis P. Butcher, Hilmar Koerner, Michael F. Durstock, Laura Fabris, Christopher E. Tabor

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Organic photovoltaic devices with a 30% improvement in power conversion efficiency are achieved when gold nanorods (Au NR) are incorporated into the active bulk heterojunction (BHJ) layer. Detailed analysis of the system is provided through microscopy, device characterization, and spectroscopy, demonstrating that the enhancement effects are predominantly caused by induced morphology changes in the BHJ film rather than plasmonic effects. Wide angle X-ray diffraction provides evidence that the nanorods loaded into the BHJ film have an effect on polymer crystal orientation, leading to a systematic performance increase in the devices as a result of both internal and external efficiency improvements.

Original languageEnglish
Pages (from-to)1448-1457
Number of pages10
JournalOrganic Electronics
Volume15
Issue number7
DOIs
Publication statusPublished - Jul 2014

Keywords

  • Bulk heterojunction
  • Nanoparticle
  • Nanorod
  • Organic photovoltaics
  • Plasmon

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

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  • Cite this

    Wadams, R. C., Yen, C. W., Butcher, D. P., Koerner, H., Durstock, M. F., Fabris, L., & Tabor, C. E. (2014). Gold nanorod enhanced organic photovoltaics: The importance of morphology effects. Organic Electronics, 15(7), 1448-1457. https://doi.org/10.1016/j.orgel.2014.03.039