A new approach for probing the mobility and lifetime of photogenerated charge carriers in organic solar cells under real operating conditions.

Baumann, A; Lorrmann, J; Rauh, D; Deibel, C; Dyakonov, V · Adv Mater · 2012

basic_science · Level V

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Abstract

A new transient charge extraction technique is presented, which facilitates simultaneous measurements of mobility and lifetime of photogenerated charge carriers in organic solar cells under real operating conditions. An adaptive field control is implemented keeping the solar cell at open circuit conditions during recombination. The practical benefit of the new technique is demonstrated by determining the mobility-lifetime parameter of solar cells based on PCDTBT:PC(71) BM and P3HT:PC(61) BM.

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