Doping of a nanostructured titania thick film:: structural and electrical investigations

被引：93

作者：

Bonini, N

Carotta, MC

Chiorino, A

Guidi, V

Malagù, C

Martinelli, G

Paglialonga, L

Sacerdoti, M

机构：

[1] Univ Ferrara, Dipartmento Fis, I-44100 Ferrara, Italy

[2] Univ Ferrara, INFM, I-44100 Ferrara, Italy

[3] IFM, Dipartimento Chim, I-10125 Turin, Italy

[4] Ist Mineral, I-44100 Ferrara, Italy

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2000年 / 68卷 / 1-3期

关键词：

thick film; TiO2; nanostructure;

D O I：

10.1016/S0925-4005(00)00444-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Thick films of nanostructured pure TiO2, Nb/TiO2, Ga/TiO2, and Ta/TiO2 have been fabricated by screen-printing technology. Structural, morphological, and optical studies have been carried out in order to correlate the measurements to electrical performance. We showed that addition of dopants inhibits grain growth due to firing and hinders conversion of anatase to rutile. The films were characterised electrically in terms of conduction properties and grain-to-grain energy barrier. The films proved sensitive to CO and NO2. It was also shown that firing temperature and dopant content strongly influence the gas response of the films. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：274 / 280

页数：7

共 17 条

[1] DOPANTS IN VAPOR-PHASE SYNTHESIS OF TITANIA POWDERS [J].

AKHTAR, MK ;

PRATSINIS, SE ;

MASTRANGELO, SVR .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1992, 75 (12) :3408-3416

[2] OPTICAL-PROPERTIES OF RUTILE NEAR ITS FUNDAMENTAL-BAND GAP [J].

AMTOUT, A ;

LEONELLI, R .

PHYSICAL REVIEW B, 1995, 51 (11) :6842-6851

[3] CH4 THICK-FILM GAS SENSORS - CHARACTERIZATION METHOD AND THEORETICAL EXPLANATION [J].

CAROTTA, MC ;

DALLARA, C ;

MARTINELLI, G ;

PASSARI, L ;

CAMANZI, A .

SENSORS AND ACTUATORS B-CHEMICAL, 1991, 3 (03) :191-196

[4]

Carotta MC, 1999, ADV MATER, V11, P943, DOI 10.1002/(SICI)1521-4095(199908)11:11<943::AID-ADMA943>3.0.CO

[5]

2-L

[6]

CAROTTA MC, IN PRESS SENS ACTU B

[7] Niobium-titanium oxide powders obtained by laser-induced synthesis: Microstructure and structure evolution from diffraction data [J].

Depero, LE ;

Sangaletti, L ;

Allieri, B ;

Bontempi, E ;

Salari, R ;

Zocchi, M ;

Casale, C ;

Notaro, M .

JOURNAL OF MATERIALS RESEARCH, 1998, 13 (06) :1644-1649

[8]

GUIDI V, IN PRESS SENS ACTU B

[9] LOW AND HIGH-TEMPERATURE TIO2 OXYGEN SENSORS [J].

KIRNER, U ;

SCHIERBAUM, KD ;

GOPEL, W ;

LEIBOLD, B ;

NICOLOSO, N ;

WEPPNER, W ;

FISCHER, D ;

CHU, WF .

SENSORS AND ACTUATORS B-CHEMICAL, 1990, 1 (1-6) :103-107

[10]

Kortum G., 1969, REFLECTANCE SPECTROS, DOI DOI 10.1007/978-3-642-88071-1

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