Journal
FLEXIBLE AND PRINTED ELECTRONICS
Volume 2, Issue 3, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/2058-8585/aa88e6
Keywords
plasma treatment; ambient air plasma; TiO2 flexible photoanode; mesoporous coating; roll-to-roll processing; inkjet printing
Categories
Funding
- European Regional Development Fund
- Ministry of Education, Youth and Sports of the Czech Republic [LO1411]
- Ministry of the Interior of the Czech Republic [VI20162019037]
- CEITEC Nano Research Infrastructure (MEYS CR)
- [CZ.1.05/ 2.1.00/03.0086]
Ask authors/readers for more resources
Titania/silica electron-generating and -transporting nanocomposite 300 nmlayers of high porosity were deposited onto ITO/PET flexible foils using inkjet printing. Prior to printing, the ITO surface had been modified by novel low-temperature ambient air roll-to-roll plasma in order to enhance its surface properties by removing carbon and oxygen contaminants, a process that led to rapid improvement of surface energy. Consequently the ITO work function, an important parameter involving charge injection efficiency in energy harvesting systems, increased by 1 eV. Afterwards, the TiO2/methyl-silica ink exhibited excellent wetting on a 2 s plasma-treated ITO surface. The coating was further processed/mineralized by an additional low-temperature ambient air plasma treatment step. The plasma processing of raw photoanodes led to the mineralization of the methyl-silica binder which resulted in the formation of a fully inorganic TiO2/SiO2 mesoporous structure and significantly increased electrophotocatalytic activity, leading to increased photocurrents. The entire two-step plasma process was performed at low-temperature (70 degrees C) and high speeds, enabling practical applications of such a procedure for large-area fabrication of flexible photoanodes.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available