Journal article

Publication year: 2014

Pages: 1566-1574

Journal: Small

Volume number: 10

Issue number: 8

ISSN: 1613-6810

DOI Link: https://doi.org/10.1002/smll.201300970

Publisher: Wiley

Abstract: 
Macroporous TiO2 (anatase) thin films are fabricated by an all low-temperature process in which substrates are dip-coated in suspensions of mixed anatase nanoparticles and polystyrene beads, and the templating agents are removed by ultraviolet (UV) irradiation at a temperature below 50 degrees C. Scanning electron microscopy (SEM) and Raman spectroscopy show that the templating polymer beads are removed by UV irradiation combined with the photocatalytic activity of TiO2. X-Ray diffraction reveals that nanoparticle growth is negligible in UV irradiated films, while nanoparticle size increases by almost 10 times in calcined films that are prepared for comparison. The macroporous films are prepared on FTO-(fluorine-doped tin oxide) coated glass and ITO (indium tin oxide) coated flexible plastics and thereby used as working electrodes. In both cases, the films are electrochemically addressable, and cyclic voltammetry is consistent with the response of bulk TiO2 for calcined films and of nanoscale-TiO2 for UV-irradiated films.

Harvard Citation style: Schröder, M., Sallard, S., Böhm, M., Einert, M., Suchomski, C., Smarsly, B., et al. (2014) An All Low-Temperature Fabrication of Macroporous, Electrochemically Addressable Anatase Thin Films, Small, 10(8), pp. 1566-1574. https://doi.org/10.1002/smll.201300970

APA Citation style: Schröder, M., Sallard, S., Böhm, M., Einert, M., Suchomski, C., Smarsly, B., Mutisya, S., & Bertino, M. (2014). An All Low-Temperature Fabrication of Macroporous, Electrochemically Addressable Anatase Thin Films. Small. 10(8), 1566-1574. https://doi.org/10.1002/smll.201300970