Detail publikačního výsledku

Photo-electrochemical properties of ZnO and TiO2 layers in ionic liquid environment

DYTRYCH, P.; KLUSOŇ, P.; DZIK, P.; VESELÝ, M.; MOROZOVÁ, M.; SEDLÁKOVÁ, Z.; ŠOLCOVÁ, O.

Original Title

Photo-electrochemical properties of ZnO and TiO2 layers in ionic liquid environment

English Title

Photo-electrochemical properties of ZnO and TiO2 layers in ionic liquid environment

Type

WoS Article

Original Abstract

Photoinduced electrochemical functionality of uniform TiO2 and ZnO films prepared by sol–gel method, in the former case in the reverse micelle environment, was studied using a specific type of ionic liquids as electrolytes. The coating part was arranged as piezoelectric ink-jet printing. Ionic liquids could be regarded as nanostructured fluids with two distinctive kinds of spatial domain: one ionic, the other non-polar. The driving force for the segregation of the nonpolar chains is energetic. They are excluded from the cohesive network of positive and negative charges that is formed by the charged groups of the ions in close contact. If side-chains are too short they do not disturb the ionic network significantly and, they do not possess enough conformational freedom to adopt low energy configuration. By increasing the chain-length the role of its spatial arrangement becomes important. Such features must be reflected in their specific behaviour as electrolytes in the contact with photoactive semiconducting thin films. Attention was also paid to the correlation of the values of generated photocurrent densities in layers with the fluidity and conductivity of the used ionic liquids.

English abstract

Photoinduced electrochemical functionality of uniform TiO2 and ZnO films prepared by sol–gel method, in the former case in the reverse micelle environment, was studied using a specific type of ionic liquids as electrolytes. The coating part was arranged as piezoelectric ink-jet printing. Ionic liquids could be regarded as nanostructured fluids with two distinctive kinds of spatial domain: one ionic, the other non-polar. The driving force for the segregation of the nonpolar chains is energetic. They are excluded from the cohesive network of positive and negative charges that is formed by the charged groups of the ions in close contact. If side-chains are too short they do not disturb the ionic network significantly and, they do not possess enough conformational freedom to adopt low energy configuration. By increasing the chain-length the role of its spatial arrangement becomes important. Such features must be reflected in their specific behaviour as electrolytes in the contact with photoactive semiconducting thin films. Attention was also paid to the correlation of the values of generated photocurrent densities in layers with the fluidity and conductivity of the used ionic liquids.

Keywords

Room temperature ionic liquids; Reverse micelles; Piezoelectric jet printing; Semiconducting metal oxides

Key words in English

Room temperature ionic liquids; Reverse micelles; Piezoelectric jet printing; Semiconducting metal oxides

Authors

DYTRYCH, P.; KLUSOŇ, P.; DZIK, P.; VESELÝ, M.; MOROZOVÁ, M.; SEDLÁKOVÁ, Z.; ŠOLCOVÁ, O.

RIV year

2014

Released

01.07.2014

Publisher

Elsevier

Location

Nizozemské království

ISBN

0920-5861

Periodical

CATALYSIS TODAY

Volume

2014

Number

230

State

Kingdom of the Netherlands

Pages from

152

Pages to

157

Pages count

10

Full text in the Digital Library

http://hdl.handle.net/

BibTex

@article{BUT102808,
  author="DYTRYCH, P. and KLUSOŇ, P. and DZIK, P. and VESELÝ, M. and MOROZOVÁ, M. and SEDLÁKOVÁ, Z. and ŠOLCOVÁ, O.",
  title="Photo-electrochemical properties of ZnO and TiO2 layers in ionic liquid environment",
  journal="CATALYSIS TODAY",
  year="2014",
  volume="2014",
  number="230",
  pages="152--157",
  doi="10.1016/j.cattod.2013.10.048",
  issn="0920-5861"
}