Informace o publikaci

Low-Temperature Hydrogen Plasma Reduction of Graphene Oxide Counter Electrodes for Printed Dye-Sensitized Solar Cells

Autoři

GEMEINER Pavol HOMOLA Tomáš HATALA Michal MIKULA Milan

Rok publikování 2020
Druh Článek ve sborníku
Konference 11th International Conference on Nanomaterials - Research & Application NANOCON 2019
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www https://doi.org/10.37904/nanocon.2019.8700
Doi http://dx.doi.org/10.37904/nanocon.2019.8700
Klíčová slova Graphene oxide; plasma reduction; dye-sensitized solar cell; counter electrode; printed electronics
Přiložené soubory
Popis In this work, solution-processable graphene oxide (GO) dispersions were used for the simple preparation of thin GO layers (50 nm thickness), which were reduced by low-temperature hydrogen plasma. Hydrogen plasma reduction (ideal treatment time 8 sec) led to a decrease of oxygen-containing groups and consequently, in the transformation of sp3-carbon oxidized domains to preferable sp2-carbon aromatic domains in rGO layers (XPS). GO and rGO layers were used as counter-electrodes (CEs) in printed dye-sensitized solar cells (DSSCs). DSSCs with rGO CEs reached an increased conversion efficiency of 0.9 % compared to DSSCs based on GO CEs with 0.4%. This can be attributed to the higher catalytic activity of plasma reduced rGO CEs in the presence of iodine electrolyte and also lower sheet resistance compared to GO CEs.
Související projekty: