Aluminum plasmonic nanostructures for improved absorption in organic photovoltaic devices
Abstract
We model the absorption enhancement in organic photovoltaic devices induced by incorporating Al, Ag, and Au nanoparticles in the active layer. We find that Al nanoparticles should yield significantly greater enhancement than Ag or Au. This is because the much higher plasma frequency of Al ensures a better overlap between plasmon resonance and absorption band of organic semiconductors. Our predictions are verified experimentally by demonstrating enhanced absorbance in a poly(3-hexylthiophene-2,5-diyl): [6,6]-phenyl C61 butyric acid methyl ester layer with embedded functionalized Al nanoparticles.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 28, 2011
- Source ID
- 10.1063/1.3574091
Entities
People
- Chih-yu Jao
- Hans D. Robinson
- Lauren Neely
- Vladimir Kochergin
Organizations
- Air Force Office of Scientific Research
- Virginia Tech