Graphene on microcrystalline silicon: Local photovoltaic characterization of a Schottky junction solar cell

0480627 - FZÚ 2018 eng A - Abstrakt
Hájková, Zdeňka - Ledinský, Martin - Vetushka, Aliaksi - Stuchlík, Jiří - Müller, Martin - Pikna, Peter - Bouša, Milan - Kalbáč, Martin - Frank, Otakar - Fejfar, Antonín
Graphene on microcrystalline silicon: Local photovoltaic characterization of a Schottky junction solar cell.
NANOCON 2016. List of Abstracts. Ostrava: Tanger Ltd., 2016 - (Shrbená, J.). s. 37-37. ISBN 978-80-87294-68-0.
[NANOCON 2016. International Conference /8./. 19.10.2016-21.10.2016, Brno]
Grant CEP: GA ČR GA14-15357S
Institucionální podpora: RVO:68378271 ; RVO:61388955
Klíčová slova: graphene * microcrystalline silicon * Schottky junction * photovoltaics * C-AFM
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)

In this study, Schottky barrier-based solar cells composed of chemical vapour deposited graphene transferred onto hydrogenated microcrystalline silicon film were investigated. We demonstrated sample with an open-circuit voltage of 445 mV, a remarkable value for undoped graphene-based solar cell. Furthermore, photovoltaic properties of graphene/silicon junctions were characterised by current-voltage (I-V) curves obtained locally by conductive atomic force microscopy (C-AFM) and also macroscopically by standard I-V measurement using AM1.5G solar simulator. A very good correlation between both independent measurements proved the C-AFM as a highly useful tool for local photovoltaic characterization of 2D material/semiconductor junctions at the nano- and microscale.

Trvalý link: http://hdl.handle.net/11104/0276363