Publication detail

Low-temperature (70 degrees C) ambient air plasma-fabrication of inkjet-printed mesoporous TiO2 flexible photoanodes

HOMOLA, T. SHEKARGOFTAR, M. DZIK, P. KRUMPOLEC, R. ĎURAŠOVÁ, Z. VESELÝ, M. WEITER, M.

Original Title

Low-temperature (70 degrees C) ambient air plasma-fabrication of inkjet-printed mesoporous TiO2 flexible photoanodes

English Title

Low-temperature (70 degrees C) ambient air plasma-fabrication of inkjet-printed mesoporous TiO2 flexible photoanodes

Type

journal article in Web of Science

Language

en

Original Abstract

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.

English abstract

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.

Keywords

plasma treatment; ambient air plasma; TiO2 flexible photoanode; mesoporous coating; roll-to-roll processing; inkjet printing

Released

01.09.2017

Publisher

Iop Publishing Ltd, Temple Circus, Temple Way, Bristol Bs1 6be, England

Location

Bristol, Velká Británie

ISBN

2058-8585

Periodical

Flexible and Printed Electronics

Year of study

2

Number

3

State

GB

Pages from

1

Pages to

11

Pages count

11

URL

Documents

BibTex


@article{BUT145124,
  author="Tomáš {Homola} and Masoud {Shekargoftar} and Petr {Dzik} and Richard {Krumpolec} and Zuzana {Ďurašová} and Michal {Veselý} and Martin {Weiter}",
  title="Low-temperature (70 degrees C) ambient air plasma-fabrication of inkjet-printed mesoporous TiO2 flexible photoanodes",
  annote="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.",
  address="Iop Publishing Ltd, Temple Circus, Temple Way, Bristol Bs1 6be, England",
  chapter="145124",
  doi="10.1088/2058-8585/aa88e6",
  howpublished="online",
  institution="Iop Publishing Ltd, Temple Circus, Temple Way, Bristol Bs1 6be, England",
  number="3",
  volume="2",
  year="2017",
  month="september",
  pages="1--11",
  publisher="Iop Publishing Ltd, Temple Circus, Temple Way, Bristol Bs1 6be, England",
  type="journal article in Web of Science"
}