INTERACTION OF NO2 WITH LUTETIUM BISPHTHALOCYANINE THIN-FILMS

Pc2Lu has been described as the first molecular semiconduaor. This pht halocyanine is more easily oxidized than conventional metallo-phthaloc yanines. This paper deals with the effects of NO2 gas at room temperat ure on the conductivity of Pc2Lu layers. It shows that the responses o f the layers to different concentrations of NO2 are very dependent on the substrate temperature during vacuum deposition and on the thicknes s of the Pc2Lu layer. It underlines the contributions of the crystalli ne and amorphous parts of the layer to the conductivity changes on dop ing.