Abstract
Recently, major advances have been made in electrolytic and solid state DSSCs through the use of perovskite nanocrystals as a sensitizing agent where power conversion efficiencies of over 12% have been realized [1–3]. Moreover the planar DSSC/PV devices with perovskites used as photoactive absorbers sandwiched between selective electron and hole transport layers have demonstrated record performances. Additionally, the uses of carbon nanotubes (CNTs) as a flexible, transparent, lightweight and robust electrode material have been demonstrated in both DSSC as well as OPV devices. The application of CNTs as a charge collector with perovskite sensitized solid state planar PV and DSSCs is discussed. Performance characteristics of CNTs within perovskite based hybrid OPVs are investigated and the role of CNTs as an efficient charge collector is extended to the inverted geometry.
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Acknowledgments
This work was supported by the Welch Foundation grant AT-1617 and partial support from DOE project DE-SC0003664. Our colleagues Antti Kaskela, Albert Nasibulin and Esko Kauppinen from Aalto University, Finland provided the SWNTs used in these experiments.
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Mielczarek, K., Zakhidov, A.A. Perovskite Based Hybrid Solar Cells with Transparent Carbon Nanotube electrodes. MRS Online Proceedings Library 1667, 20–25 (2014). https://doi.org/10.1557/opl.2014.725
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DOI: https://doi.org/10.1557/opl.2014.725