EFFECTS OF METAL-SALTS ON STRUCTURAL, ELECTRICAL AND GAS-SENSING PROPERTIES OF CROWN-ETHER-SUBSTITUTED PHTHALOCYANINES AND RELATED-COMPOUNDS

[摘要] 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.

[发布日期] 1993-10-01

[效力级别]  Proceedings Paper