Donor-Acceptor Interfaces by Engineered Nanoparticles Assemblies for Enhanced Efficiency in Plastic Planar Heterojunction Solar Cells

Maurizio Leone, Bruno Giuseppe Pignataro, Camillo Sartorio, Valeria Vetri, Sebastiano Cataldo, Michelangelo Scopelliti, Stefano Scaramuzza, Michelangelo Scopelliti, Vincenzo Amendola

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Precisely positioning functionalized gold nanoparticles assemblies at planar donor-acceptor interfaces results in 14-fold enhancement of power conversion efficiency in P3HT/PCBM organic solar cells on plastic (ITO/PET) substrates. This result has been achieved by employing naphthalenethiol-capped gold nanoparticles (NT-Au-NPs) produced by laser ablation in liquid and size varied in the 10-30 nm range. Upon surface functionalization with the aromatic thiol, these particles self-assemble in submicrometer aggregates, which give increased light scattering. When these aggregates are deposited in the planar heterojunction between the donor and the acceptor systems, the localized scattering leads to a larger exciton formation just in the region of interest for charge transfer. (Graph Presented).
Original languageEnglish
Pages (from-to)26588-26599
Number of pages12
JournalJOURNAL OF PHYSICAL CHEMISTRY. C
Volume120
Publication statusPublished - 2016

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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