Abstract
The work reported here explores the impact of polymer morphology on the physics and performance of perylene benzimidazole / poly(3-hexylthiophene) bilayer photovoltaic devices. By varying both the annealing temperature and the solvent used for polymer deposition, we demonstrate control of the polymer chain morphology. An increase in the relative ordering of the polymer chain conformation is observed through a shift in the absorption onset and absorption spectral shape, and results in improved photovoltaic performance.
Original language | English |
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Pages (from-to) | 271-275 |
Number of pages | 5 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 5215 |
DOIs | |
Publication status | Published - 2004 |
Event | Organic Photovoltaics IV - San Diego, CA, United States Duration: Aug 7 2003 → Aug 8 2003 |
Keywords
- Heterojunction
- Organic solar cells
- Polymer
- Polymer ordering
- Small molecule organics
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering