Organic Photovoltaics: Lessons Taught by Ultrafast Spectroscopy
Event details
| Date | 05.06.2014 |
| Hour | 16:30 › 17:30 |
| Speaker |
Dr Maxim S. Pchenitchnikov Zernike Institute for Advanced Materials, University of Groningen, the Netherlands |
| Location | |
| Category | Conferences - Seminars |
Bulk-heterojunction organic solar cells attract much interest as one of renewable energy source. To gain insights on how to design more efficient solar cells, fundamental understanding is required of the crucial first steps in photon-to-voltage conversion.
In this presentation, I will demonstrate how ultrafast spectroscopy can be used to obtain important information on initial charge generation and separation in organic photovoltaics blends. I will focus on the following two issues:
(i) the interplay between intra- and inter-molecular electron transfer followed photon absorption, and
(ii) the hole transfer process from fullerene molecules to the polymers.
While understanding of the former processes provides important feedback to chemical synthesis, the latter allows for morphology characterization “on-the-fly” in functional devices.
In this presentation, I will demonstrate how ultrafast spectroscopy can be used to obtain important information on initial charge generation and separation in organic photovoltaics blends. I will focus on the following two issues:
(i) the interplay between intra- and inter-molecular electron transfer followed photon absorption, and
(ii) the hole transfer process from fullerene molecules to the polymers.
While understanding of the former processes provides important feedback to chemical synthesis, the latter allows for morphology characterization “on-the-fly” in functional devices.
Practical information
- General public
- Free
Organizer
- Dr Frank van Mourik