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Preparation and Characterization of Nanostructured Titania Thick Films
Author(s) -
Carotta Maria Cristina,
Ferroni Matteo,
Guidi Vincenzo,
Martinelli Giuliano
Publication year - 1999
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/(sici)1521-4095(199908)11:11<943::aid-adma943>3.0.co;2-l
Subject(s) - materials science , characterization (materials science) , annealing (glass) , doping , nanotechnology , grain size , thin film , grain growth , optoelectronics , chemical engineering , composite material , engineering
A low‐cost method of producing nanostructured titania thick films is required if nanostructured titania is to be used to its full potential in applications in areas ranging from optics via solar energy to gas sensing. It is demonstrated that screen printing forms the basis of such a method, and the effect of annealing on the nanophase and the role of doping to prevent coarse‐grain growth at relatively high temperature are discussed. Finally, miniaturized devices with deposited titania layers are shown to act as sensors for CO, their performance depending on the size of the grains.