Wright, J.D and Roisin, P. and Rigby, G.P. and Erkizia, E. and Nolte, R.J.M. and Thorpe, S.C. (1993) Effects of metal salts on structural, electrical and gas-sensing properties of crown-ether-substituted phthalocyanines and related compounds. Sensors and Actuators. B-Chemical, 16 (1-3). pp. 301-305. ISSN 0925-4005.
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Abstract
The effects of nitrogen dioxide on the semiconductivity of crown-ether-substituted phthalocyanines and related aza-crown phthalocyanines in both dry and humid conditions are reported, for films deposited from chloroform solution and doped with different metal salts. Humidity changes the response to NO2 from a p-type conductivity increase to an n-type decrease. Replacing one oxygen atom in each crown ring by N-acetyl blocks the crown cavity and minimises effects of water and added salts. Replacing more oxygens with N-tosyl groups leads to strong steric effects and very poor conductivity in all environments. The effects of doping with other metal salts are also discussed.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science > QD Chemistry T Technology > TA Engineering (General). Civil engineering (General) > TA166 Instrumentation |
| Divisions: | Faculties > Science Technology and Medical Studies > School of Biosciences |
| Depositing User: | O.O. Odanye |
| Date Deposited: | 13 Jul 2009 18:04 |
| Last Modified: | 13 Jul 2009 18:04 |
| Resource URI: | http://kar.kent.ac.uk/id/eprint/20744 (The current URI for this page, for reference purposes) |
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