Ultrathin optical design for organic photovoltaic cells

  • J. X. Man
  • , D. Y. Luo
  • , L. M. Yu
  • , D. K. Wang
  • , Z. Liu*
  • , Z. H. Lu
  • *Corresponding author for this work

Research output: Contribution to journalComment/debate

Abstract

A trilayer ultrathin-film model concept had been adapted to maximize optical absorption of organic photovoltaic cells (OPVs) with a structure of transparent-electrode/highly-absorbing active material/metal. As demonstrated, device with the structure of ITO/Lead phthalocyanine (SubPc):Buckerminster fullerene (C60) (1:4 wt%)/Al had been studied. It is found that more than 90% optical absorption can be obtained in the device with a broaden wavelength range of 480-620 nm. The calculated optical electric fields shows that the unusually high optical absorption is due to the enhanced optical interference inside the OPVs device. This work paved a new way to design the OPVs device.

Original languageEnglish
Pages (from-to)184-188
Number of pages5
JournalOptics Communications
Volume342
DOIs
StatePublished - 1 May 2015
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Optical absorption
  • Organic photovoltaic cells
  • SubPc:C60
  • Ultrathin-film optical coating

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