Tailoring of the plasmonic and waveguide effect in bulk-heterojunction photovoltaic devices with ordered, nanopatterned structures

Dong Hwan Wang, Aung Ko Ko Kyaw, Qing Guo Du, Dae Geun Choi, Jong Hyeok Park

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Various nano-patterned bulk-heterojunction (BHJ) films with different diameters and pitches were fabricated by a stamping method to tailor the plasmonic effect. The nanopatterned BHJ active layers exhibit regular-ordered embossing structures, which were confirmed by the surface morphological analysis with SEM and AFM. The simulation results confirm that devices with nanopatterned BHJ film with a diameter/pitch of 265/400 nm exhibit a strong improvement in E-field distribution intensity due to the combination of the plasmonic and waveguide modes compared to devices without a nanopattern, with 150/400 nm, or with 265/800 nm, which led to increased JSCand cell efficiency in J-V curves under solar light illumination. The optimized plasmonic effect plays an important role in the light harvesting of BHJ devices.

Original languageEnglish
Pages (from-to)3120-3126
Number of pages7
JournalOrganic Electronics
Volume15
Issue number11
DOIs
Publication statusPublished - 2014 Nov

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All Science Journal Classification (ASJC) codes

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

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