Berlin 2015 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
HL: Fachverband Halbleiterphysik
HL 19: Organic photovoltaics and electronics - mostly properties of the absorber (with DS)
HL 19.5: Vortrag
Montag, 16. März 2015, 18:00–18:15, EW 202
Investigation of DCV5T-Me Solar Cells on Presence of Traps — •Natalia Sergeeva1, Janine Fischer1, Paul Pahner1, Lorenzo Burtone1,2, Christian Körner1, Koen Vandewal1, and Karl Leo1 — 1Institut für Angewandte Photophysik Technische Universität Dresden, Germany — 2Globalfoundries, Dresden, Germany
Traps play an important role in the performance of organic solar cells (OSC). They influence the mobility, the amount of extracted charge carriers at the electrodes and lead to trap assisted recombination. Better understanding of traps is necessary to further improve the efficiency of OSC. We investigate bulk heterojunction OSC based on the donor material DCV5T-Me with regards to the presence of traps by performing Impedance spectroscopy (IS) and temperature stimulated currents (TSC) measurements. We discuss the observed impedance and TSC spectra, evaluate the density and distribution of trap states and the attempt to escape frequency.