Publication

Intensity Dependent Femtosecond Dynamics in a PBDTTPD-Based Solar Cell Material

Jacques-Edouard Moser, Natalie Renuka Banerji, Arun Aby Paraecattil
2012
Journal Articles

Abstract

PBDTTPD is a conjugated polymer with high power conversion efficiency if used in organic solar cells together with fullerene derivatives. We have investigated forthe first time the excited state dynamics of pristine PBDTTPD thin film as well as the ultrafast evolution of charge carriers in PBDTTPD:PCBM bulk heterojunction blend using femtosecond transient absorption spectroscopy. In the latter, charges appear within the time resolution of the experiment (80% of charges survive after 1 ns; the rest recombines (most probably geminately) on the 200 ps time scale.

Official source

https://infoscience.epfl.ch/entities/publication/dbfcfb99-bb49-4d0a-a57c-94ff9438c7ac

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Intensity Dependent Femtosecond Dynamics in a PBDTTPD-Based Solar Cell Material

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