THE EFFECT OF ATMOSPHERIC COLD PLASMA CLEANING OF FTO SUBSTRATES ON THE QUALITY OF TIO2 ELECTRON TRANSPORT LAYERS FOR PRINTED CARBON-BASED PEROVSKITE SOLAR CELLS

1 HVOJNIK Matej
Co-authors:
2 VIDA Július 2 HOMOLA Tomáš 1 PAVLIČKOVÁ Michaela 1 HATALA Michal 1 MIKULA Milan 1 TOMANOVÁ Katarína 1 GEMEINER Pavol
Institutions:
1 Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Slovakia, EU, matej.hvojnik@stuba.sk
2 Department of Physical Electronics, Faculty of Science, Masaryk University, Brno, Czech Republic, EU
Conference:
12th International Conference on Nanomaterials - Research & Application, Brno, Czech Republic, EU, October 21 - 23, 2020
Proceedings:
Proceedings 12th International Conference on Nanomaterials - Research & Application
Pages:
189-195
ISBN:
978-80-87294-98-7
ISSN:
2694-930X
Published:
28th December 2020
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
780 views / 494 downloads
Abstract

In this work, TiO2 electron transport layers (ETL) of printed perovskite solar cells with back carbon electrode (C-PSCs) were prepared on uncleaned, chemically cleaned, and plasma-treated FTO substrates. The effect of cleaning procedure type on the quality of TiO2 ETL has been characterised by XPS and SEM. The C-PSCs with FTO substrates treated by low-temperature atmospheric plasma at ambient air for 10 s reached approximately the same efficiency (4.4%) as with the chemically cleaned FTO (4.5%). From optical microscope and SEM images, it was observed that the plasma cleaned the FTO substrate to some extent, thereby reducing the number of defects and pinholes occurring in the blocking layer. XPS measurements confirmed that chemical and plasma treatment significantly reduced organic species on the FTO surface.

Keywords: Atmospheric cold plasma, TiO2, electron transport layer, carbon electrode, perovskite solar cells

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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