DPG Phi
Verhandlungen
Verhandlungen
DPG

Berlin 2015 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

TT: Fachverband Tiefe Temperaturen

TT 47: Organic Electronics and Photovoltaics: OPV I (jointly with CPP, HL, O)

TT 47.3: Talk

Tuesday, March 17, 2015, 14:45–15:00, C 130

Charge separation at C60/P3HT and P3HT/ZnO interfaces probed by femtosecond time-resolved second harmonic generation measurements — •Marc Hänsel1, Michael Schulze1, Yunus Sevinchan2, Yana Vaynzof2, and Petra Tegeder11Physikalisch-Chemisches Institut, Heidelberg, Germany — 2Centre of Advanced Materials, Heidelberg, Germany

A deeper understanding of the process of ultrafast charge transfer and separation at donor/acceptor interfaces is a prerequisite for improvement of organic and hybrid solar cells. Time-resolved second harmonic generation (TR-SHG) with femtosecond temporal resolution was used to investigate different donor/acceptor interfaces. With this intrinsically interface sensitive technique we were able to monitor the charge transfer dynamics of the well-defined single heterojunctions C60/P3HT and P3HT/ZnO. In addition some modifications via cesium doping were made to the ZnO/P3HT interface. At the C60/P3HT interface a pump energy dependent ultrafast charge transfer state with a population time of 320fs has been observed.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2015 > Berlin