Dresden 2017 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

CPP: Fachverband Chemische Physik und Polymerphysik

CPP 13: Poster: Fundamentals of Perovskite Photovoltaics (joint session CPP, DS, HL)

CPP 13.3: Poster

Montag, 20. März 2017, 18:30–21:00, P1A

Ultrafast charge and exciton dynamics in CH3NH3PbI3 — •Kestutis Budzinauskas1, Yajun Gao1, Elina Patsikatheodorou1, Tobias Schneider2, Selina Otlhof2, Klaus Meerholz2, and Paul H.M. van Loosdrecht11University of Cologne, II physics institute — 2University of Cologne, Institute of chemical physics

Solar cells based on organic-inorganic perovskite semiconductors show a surprisingly high conversion effciency. Despite tremendous progress in the field of perovskite based devices, the fundamental photophysics responsible for the good performance are still not well understood. In order to obtain a better insight of the charge separation and recombination dynamics in these materials we have performed ultrafast time resolved absorption experiments in the VIS/NIR spectral range on pure MAPbI3 (CH3NH3PbI3) films, as well as on multilayer systems which use PEDOT:PSS and PC61BM as charge selective extraction layers. Our experiments allow to selectively monitor diffusion and recombination processes as well as interfacial charge transfer and the formation of interfacial charge transfer states with a sub-100 fs time resolution.

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2017 > Dresden