Photonics Research Group Home
Ghent University Journals/Proceedings
About People Research Publications Education Services


Publication detail

Authors: B. Maes, H. Shen, P. Bienstman
Title: Plasmonic nanoparticle enhancement in thin organic solar cells
Format: International Conference Proceedings
Publication date: 12/2009
Journal/Conference/Book: ICTON Mediterranean Winter - COST MP0702 workshop
Location: Angers, France
DOI: 10.1109/ictonmw.2009.5385626
Citations: Look up on Google Scholar
Download: Download this Publication (86KB) (86KB)


Thin film solar technologies can potentially provide energy at a very low device cost, because of lower material consumption. However, given their thin absorbing layer there is a need for absorption boosting measures, such as light trapping or management techniques. This problem is particularly important for organic solar cells, since the active layer thickness is often limited by the exciton diffusion length. Here, we examine a recent promising light trapping scheme, which consists of incorporating small metallic nanoparticles into the organic active layer. It turns out that the localized plasmon resonance of the particles can significantly enhance the optical fields and absorption. We examine the potential of this technique in a thin solar cell with P3HT:PCBM as the active material, by performing rigorous numerical simulations. Ultimately, we find that a layer of only 33nm thick with silver particles of 24nm diameter, can provide the same solar absorption efficiency as a layer of 61nm thickness without particles. Such enhancements may pave the way towards cheaper energy harvesting devices.

Related Research Topics

Related Projects

Back to publication list