New electrochromic sensor based on lanthanide diphthalocyanin monolayers for environmental tobacco- smoke detection

摘要

New electrochromic sensor based on lanthanide diphthalocyanin monolayers for environmental tobacco- smoke detection. It comprises: 1 a rigid and perfectly planar support transparent in the visible-UV spectral zones of the spectrum 2 an organic compound based on lanthanide diphthalocyanins with the general formula: LnPc2 In which Ln represents a lanthanide selected from among Y, Pr, Gd and Tb, Pc represents phthalocyanin, which is deposited on the support referred to in the form of green- coloured molecular monolayers, it being optionally possible to oxidise said LnPc2 layers with nitrogen oxides, so that they present a red colour. Application in the detection of environmental tobacco smoke.