Perovskite Solar Cells with Low-Cost TiO2 Mesoporous Photoanodes Prepared by Rapid Low-Temperature (70 degrees C) Plasma Processing

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Authors

HOMOLA Tomáš POSPISIL Jan SHEKARGOFTAR Masoud SVOBODA Tomáš HVOJNIK Matej GEMEINER Pavol WEITER Martin DZIK Petr

Year of publication 2020
Type Article in Periodical
Magazine / Source ACS Applied Energy Materials
MU Faculty or unit

Faculty of Science

Citation
Web https://doi.org/10.1021/acsaem.0c02144
Doi http://dx.doi.org/10.1021/acsaem.0c02144
Keywords ambient-air plasma; cold plasma treatment; TiO2 mesoporous coatings; electron-transport layer (ETL); perovskite solar cell (PSC)
Description This work introduces a novel method of low-temperature (70 degrees C) ambient-air plasma treatment for the rapid fabrication of mesoporous titania/polysiloxane thin films in perovskite solar cells. The mesoporous titania/polysiloxane nanocomposite mesoporous layers were prepared using wet coating compatible with plasma post-treatment, leading to a significant and rapid (1 min) removal of the organic part of the polysiloxane binder, together with its transformation into amorphous silica. The application of a plasma-processed mesoporous titania/silica photoanode in a perovskite solar cell resulted in a power conversion efficiency of similar to 12%, demonstrating for the first time the feasibility of such a cold plasma processing approach for perovskite solar cell manufacture.
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