Design of plasmonic circular grating with broadband absorption enhancements

Nan Fu Chiu, Cheng Du Yang, Yi Lun Kao, Chih Jen Cheng

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

3 Citations (Scopus)


We have investigated the effect of concentric circles geometry on the performance of focusing plasmonic circular grating (PCG)-coupled surface-omnidirectional absorption. We wish to highlight the essential characteristics of plasmonic circular grating nanostructure to assist researchers in developing and advancing suitable organic solar cells (OSC) for unique applications. Exactly how plasmonic enhancement and the absorption characteristics of the organic materials (P3HT:PCBM and PEDOT:PSS) interact with each other is also examined. We present experimental studies of broadband absorption enhancement in PCG structure. We show that the PCG structure can result in broadband absorption enhancement, the overall optical absorption in organic film can be greatly enhanced up to ∼111.2 % compared to the planar device without grating.

Original languageEnglish
Title of host publicationMetamaterials X
EditorsPeter Markos, Vladimir Kuzmiak, Tomasz Szoplik
ISBN (Electronic)9781628416237
Publication statusPublished - 2015
Event10th SPIE Conference on Metamaterials - Prague, Czech Republic
Duration: 2015 Apr 152015 Apr 16

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


Other10th SPIE Conference on Metamaterials
Country/TerritoryCzech Republic


  • Organic solar cell (OSC)
  • Plasmonic circular grating (PCG)

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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