Humidity sensing behaviour of mono- and dinuclear osmium(IV) chloro complexes

Authors
Maiboroda, A Fechner, A Zahn, D Hietschold, M Lang, H
Citation
A. Maiboroda et al., Humidity sensing behaviour of mono- and dinuclear osmium(IV) chloro complexes, SENS ACTU-B, 75(3), 2001, pp. 188-191
Citations number
9
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
SENSORS AND ACTUATORS B-CHEMICAL
ISSN journal
09254005 → ACNP
Volume
75
Issue
3
Year of publication
2001
Pages
188 - 191
Database
ISI
SICI code
0925-4005(20010515)75:3<188:HSBOMA>2.0.ZU;2-3
Abstract
Novel mono- and homodinuclear osmium(IV) chloro complexes of general type [ AsPh4][OsCl5(H2O)] (1) and [AsPh4](2)[Cl5Os(L-L)OsCl5] [LL = pyrazine (2), 4,4'-bipyridine (3)1 can be used for the preparation of humidity sensors by thick-film technology. The resistance of the studied samples changes from 10(9) to 10(6) W by variation of the relative humidity (RH) from 20 to 95%. Morphological studies using scanning electron microscopy (SEM) are reporte d. In addition, a possible mechanism of the humidity sensing behaviour is p resented. (C) 2001 Elsevier Science B.V. All rights reserved.