Humidity-sensitive properties of titania films prepared using the sol-gel process

Gualtiero Gusmano; Giampiero Montesprelli; Patrizia Nunzianate; Enrico Traversa; Angelo Montenero; Marco Braghini; Giulia Mattogno; Andrea Bearzotti

doi:10.2109/jcersj.101.1095

Humidity-sensitive properties of titania films prepared using the sol-gel process

Gualtiero Gusmano^*, Giampiero Montesprelli, Patrizia Nunzianate, Enrico Traversa, Angelo Montenero, Marco Braghini, Giulia Mattogno, Andrea Bearzotti

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

57 Scopus citations

Abstract

TiO₂ films, as well as powders as reference, were prepared using the sol-gel process, using titanium isopropylalkoxide (TIPT) as a precursor. The films were deposited on glass and heated either to 300°C or 500°C. The morphology of the film surface was observed using scanning electron microscopy (SEM). Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and electrochemical impedence spectroscopy (EIS) at different relative humidities were carried out to study the possibility of using sol-gel processed titania films as detecting elements in humidity sensors. A good resistance versus relative humidity (rh) sensitivity was observed in the range from 50% to 85% rh. The response time of titania films was rather fast, estimated in a few seconds.

Original language	English (US)
Pages (from-to)	1095-1100
Number of pages	6
Journal	Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
Volume	101
Issue number	1178
DOIs	https://doi.org/10.2109/jcersj.101.1095
State	Published - 1993
Externally published	Yes

ASJC Scopus subject areas

Ceramics and Composites
General Chemistry
Condensed Matter Physics
Materials Chemistry

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title = "Humidity-sensitive properties of titania films prepared using the sol-gel process",

abstract = "TiO2 films, as well as powders as reference, were prepared using the sol-gel process, using titanium isopropylalkoxide (TIPT) as a precursor. The films were deposited on glass and heated either to 300°C or 500°C. The morphology of the film surface was observed using scanning electron microscopy (SEM). Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and electrochemical impedence spectroscopy (EIS) at different relative humidities were carried out to study the possibility of using sol-gel processed titania films as detecting elements in humidity sensors. A good resistance versus relative humidity (rh) sensitivity was observed in the range from 50% to 85% rh. The response time of titania films was rather fast, estimated in a few seconds.",

author = "Gualtiero Gusmano and Giampiero Montesprelli and Patrizia Nunzianate and Enrico Traversa and Angelo Montenero and Marco Braghini and Giulia Mattogno and Andrea Bearzotti",

year = "1993",

doi = "10.2109/jcersj.101.1095",

language = "English (US)",

volume = "101",

pages = "1095--1100",

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issn = "0914-5400",

publisher = "Ceramic Society of Japan/Nippon Seramikkusu Kyokai",

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T1 - Humidity-sensitive properties of titania films prepared using the sol-gel process

AU - Gusmano, Gualtiero

AU - Montesprelli, Giampiero

AU - Nunzianate, Patrizia

AU - Traversa, Enrico

AU - Montenero, Angelo

AU - Braghini, Marco

AU - Mattogno, Giulia

AU - Bearzotti, Andrea

PY - 1993

Y1 - 1993

N2 - TiO2 films, as well as powders as reference, were prepared using the sol-gel process, using titanium isopropylalkoxide (TIPT) as a precursor. The films were deposited on glass and heated either to 300°C or 500°C. The morphology of the film surface was observed using scanning electron microscopy (SEM). Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and electrochemical impedence spectroscopy (EIS) at different relative humidities were carried out to study the possibility of using sol-gel processed titania films as detecting elements in humidity sensors. A good resistance versus relative humidity (rh) sensitivity was observed in the range from 50% to 85% rh. The response time of titania films was rather fast, estimated in a few seconds.

AB - TiO2 films, as well as powders as reference, were prepared using the sol-gel process, using titanium isopropylalkoxide (TIPT) as a precursor. The films were deposited on glass and heated either to 300°C or 500°C. The morphology of the film surface was observed using scanning electron microscopy (SEM). Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and electrochemical impedence spectroscopy (EIS) at different relative humidities were carried out to study the possibility of using sol-gel processed titania films as detecting elements in humidity sensors. A good resistance versus relative humidity (rh) sensitivity was observed in the range from 50% to 85% rh. The response time of titania films was rather fast, estimated in a few seconds.

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JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan

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IS - 1178

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Humidity-sensitive properties of titania films prepared using the sol-gel process

Abstract

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