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A New Approach for Probing the Mobility and Lifetime of Photogenerated Charge Carriers in Organic Solar Cells Under Real Operating Conditions
Author(s) -
Baumann A.,
Lorrmann J.,
Rauh D.,
Deibel C.,
Dyakonov V.
Publication year - 2012
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201200874
Subject(s) - materials science , organic solar cell , charge carrier , transient (computer programming) , solar cell , electron mobility , charge (physics) , open circuit voltage , carrier lifetime , optoelectronics , photovoltaic system , organic semiconductor , polymer , voltage , computer science , silicon , electrical engineering , physics , quantum mechanics , composite material , engineering , operating system
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.