SPLTRAK Abstract Submission
Understanding Device Performance Limiting Factors by Reproducing The Current-Voltage Characteristics from Transient Optoelectrical Measurements
Abasi Abudulimu1,2, Klaus Eckstein3, Mirella El Gemayel4, Imge Namal3, Adam B Phillips1, Michael J Heben1, Tobias Hertel3, Sebastian B Meier4, Larry Lüer5,2, Randy J Ellingson1
1Wright Center for Photovoltaics Innovation and Commercialization (PVIC), Department of Physics and Astronomy, The University of Toledo, Toledo, OH, United States
/2IMDEA Nanociencia, C/ Faraday 9, 28049 Cantoblanco, MADRID, Spain
/3Institute of Physical and Theoretical Chemistry, Julius-Maximilian University Würzburg, Würzburg, Germany
/4Belectric OPV GmbH, Landgrabenstr. 94, 90943 Nürnberg, Nürnberg, Germany
/5Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany

Pushing the performance of the solar cell to the theoretical limit is the matter of better understanding the charge dynamics from the absorber to the complete device and laying the direction for device/material engineering. Here we study the charge dynamics on a set of bulk heterojunction organic solar cells with/o incorporating semiconducting single-walled carbon nanotubes into the absorber layer. Employing nano-microsecond transient optoelectrical characterization techniques along with femtosecond transient absorption spectroscopy and reproducing the steady-state current-voltage characteristics of the device from the parameter extracted from the transient optoelectrical measurements, we demonstrate that the cost-effective optoelectrical techniques capable of determining the performance limiting factors of the devices under operational conditions.