Challenges for the use of non-siliceous mesoporous thin films to improve device performances


Norihiro Suzuki

ICYS-Sengen Researcher


Non-siliceous mesoporous thin films, which are easily synthesizable by the template-assisted sol-gel method, are interesting materials because physical properties inherent in the framework materials as well as porosity-induced properties can be used simultaneously. Because mesoporous thin films have large surface area, as for the surface (interface) related phenomena, mesoporous thin films have a potential to be superior to their bulks.

In this presentation, firstly, I will introduce mesoporous TiO2 thin films for photoanodes of DSCs. Because of their high surface area, many dyes are able to be attached to the electrodes, which is beneficial to create a photocurrent.

Secondly, I will discuss on the enhancement of the Curie temperature (Tc) of ferroelectric material (BaTiO3). It is well known that strains induced at BaTiO3 enhance the thermal stability of ferroelectric phase, leading the enhancement of the Tc. I’d like to mention that such strains can be introduced by utilizing mesopores.