Carrier dynamics of films of zinc phthalocyanine and C60 measured by terahertz time domain spectroscopy
Laser Science, LS 2010, Rochester, NY, United States Of America, 24 - 28 October 2010, (Full Text)
- Publication Type: Conference Paper / Full Text
- Doi Number: 10.1364/ls.2010.lwi3
- City: Rochester, NY
- Country: United States Of America
- Middle East Technical University Affiliated: Yes
Abstract
We studied photocarrier dynamics in organic photovoltaics by terahertz time domain spectroscopy. Transient THz absorption decays in C60 and zinc phthalocyanine span a wide range of timescales and reveal how to optimize photocarrier yields. We find evidence for direct excitation of a charge transfer state of C60 and morphology dependent excitation of free carriers. © 2010 OSA/FiO/LS 2010.