On Optoelectronic Processes in Organic Solar Cells: From Opaque to Transparent
Schopp N. Brus V.V. Nguyen T.-Q.
February 4, 2021Wiley-VCH Verlag
Advanced Optical Materials
2021#9Issue 3
Organic (semi)transparent photovoltaics (ST-OPVs) promise integrated, sustainable, low-cost energy harvesting solutions. However, current efficiency limitations have to be overcome to make ST-OPV a competitive technology. In this simulation-based work, the effect of the selective transparency on the photoelectronic processes in ST-OPVs is studied and changes in the generation–recombination dynamics and the extraction efficiency are demonstrated that are causally linked to the increased transparency. The study of five model systems with transparent indium tin oxide (ITO) back electrodes and systematically varied extinction coefficients and an opaque cell with Ag back contact allows to quantify these changes in the photoelectronic processes and to address the role of the series and the shunt resistors while keeping all other parameters of the modeled devices identical. The findings demonstrate the increased importance of the active layer quality in ST-OPVs and indicate that ST-OPVs benefit from a wider choice of transparent electrode materials.
extraction , optical simulation , recombination dynamics , semitransparent photovoltaics
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Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, University of California Santa Barbara (UCSB), Santa Barbara, 93106, CA, United States
Department of Physics, School of Sciences and Humanities, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
Center for Polymers and Organic Solids
Department of Physics
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