Humidity-sensitive optical absorption of Co3O4 film

Sensors and Actuators, B: Chemical

Volumn 32, Issue 2, 1996, Pages 157-160

  Ando, Masanori ^a   Kobayashi, Tetsuhiko ^a   Haruta, Masatake ^a  

^a OSAKA NATIONAL RESEARCH INSTITUTE   (Japan)

Author keywords

Cobalt oxide; Optical humidity sensors; Visible absorbance change

Indexed keywords

ABSORPTION; COBALT COMPOUNDS; HUMIDITY CONTROL; OXIDES; THIN FILMS;

COBALT OXIDE; HUMIDITY SENSITIVE OPTICAL ABSORPTION; VISIBLE ABSORBANCE CHANGE;

OPTICAL SENSORS;

EID: 0030135090     PISSN: 09254005     EISSN: None     Source Type: Journal    
DOI: 10.1016/0925-4005(96)80125-0     Document Type: Article

References (27)

1. K. Eguchi, Optical gas sensors, in G. Sberveglieri (ed.), Gas Sensors, Kluwer, Dordrecht, 1992, pp. 307-328.
2. W.R. Seitz, Chemical sensors based on fiber optics, Anal. Chem., 56 (1984) 16A-34A.
3. T. Kobayashi, M. Haruta, H. Sano and B. Delmon, Optical detection of CO in air through catalytic chromism of metal-oxide thin films, Proc. 3rd Int. Meet. Chemical Sensors, Cleveland, OH, USA, 1990, pp. 318-321.
4. T. Kobayashi, M. Haruta and M. Ando, Enhancing effect of gold deposition in the optical detection of reducing gases in air by metal oxide thin films, Sensors and Actuators B, 13-14 (1993) 545-546.
5. M. Ando, T. Kobayashi and M. Haruta, Enhancement in the optical CO sensitivity of NiO film by the deposition of ultrafine gold particles, J. Chem. Soc. Faraday Trans., 90 (1994) 1011-1013.
6. 2 by use of metal oxide-noble metal composite films, in M. Butler, A. Ricco and N. Yamazoe (eds.), Proc. Symp. Chem. Sensors II (183rd Meet. Electrochem. Soc., Proc. 93-7), Honolulu, HI, USA, 1993, pp. 690-697.
7. M. Ando, T. Kobayashi and M. Haruta, Optical CO detection by use of CuO/Au composite films, Sensors and Actuators B, 24-25 (1995) 851-853.
8. S. Muto, A. Fukasawa, T. Ogawa, M. Morisawa and H. Ito, Optical detection of moisture in air and in soil using dye-doped plastic fibers, Jpn. J. Appl. Phys., 29 (1990) L1023-L1025.
9. K. Wang, K. Seiler, J.-P. Haug, B. Lehmann, S. West, K. Hartman and W. Simon, Hydration of trifluoroacetophenones as the basis for an optical humidity sensor, Anal. Chem., 63 (1991) 970-974.
10. R-tri-phenylcarbinol composite, J. Electrochem. Soc., 138 (1991) 614-615.
11. Y. Sadaoka, Y. Sakai and M. Yamada, Optical properties of sulfonephthalein dyes entrapped within polymer matrices for quantification of ammonia vapour and humidity in air, J. Mater. Chem., 5 (1993) 877-881.
12. S. Otsuki and K. Adachi, Metachromasy in polymer films. Changes in the absorption spectrum of methylene blue in Nafion films by hydration, Polymer J., 25 (1993) 1107-1112.
13. S. Otsuki and K. Adachi, Characterization of Nafion solutions and films and observation of the casting process using basic dyes as optical probes, J. Appl. Polym. Sci., 56 (1995) 697-705.
14. A.P. Russell and K.S. Fletcher, Optical sensor for the determination of moisture, Anal. Chim. Acta., 170 (1985) 209-216.
15. D.S. Ballantine and H. Wohltjen, Optical waveguide humidity detector, Anal. Chem., 58 (1986) 2883-2885.
16. F. Boltinghouse and K. Abel, Development of an optical relative humidity sensor. Cobalt chloride optical absorbency sensor study, Anal. Chem., 61 (1989) 1863-1866.
17. S. Otsuki and K. Adachi, Humidity dependence of visible absorption spectrum of gelatin films containing cobalt chloride, J. Appl. Polym. Sci., 48 (1993) 1557-1564.
18. Q. Zhou, M.R. Shahriari, D. Kritz and G.H. Sigel, Jr., Porous fiber-optic sensor for high-sensitivity humidity measurements, Anal. Chem., 60 (1988) 2317-2320.
19. J.Y. Ding, M.R. Shahriari and G.H. Sigel, Jr., Fiber optic moisture sensors for high temperatures, Am. Ceram. Soc. Bull., 70 (1991) 1513-1517.
20. 4 films, Solid State Commun., 47 (1983) 577-584.
21. 4 films, Thin Solid Films, 144 (1986) 165-176.
22. 3, Discuss. Faraday Soc., 52 (1971) 239-254.
23. G. Munuera and F.S. Stone, Adsorption of water and organic vapours on hydroxylated rutile, Discuss. Faraday Soc., 52 (1971) 205-214.
24. H.P. Boehm, Acidic and basic properties of hydroxylated metal oxide surfaces, Discuss. Faraday Soc., 52 (1971) 264-275.
25. 2 porous ceramics, J. Am. Ceram. Soc., 65 (1980) 295-300.
26. T. Nitta, Ceramic humidity sensor, Ind. Eng. Chem. Prod. Res. Dev., 20 (1981) 669-674.
27. 4 catalysts, Catal. Lett., 25 (1994) 257-264.