%0 Journal Article %J J Am Chem SocJournal of the American Chemical Society %D 2003 %T Effect of surface pressure on the insulator to metal transition of a langmuir polyaniline monolayer %A Zhang, Jie %A Barker, Anna L. %A Mandler, Daniel %A Unwin, Patrick R. %X A remarkable change in the conductivity of a polyaniline (PAN) Langmuir monolayer in the conducting state, as a function of surface pressure, has been observed using scanning electrochemical microscopy (SECM). The film conductivity, as expressed by the SECM current response of a redox mediator, was measured in-situ in a Langmuir film balance. The conductivity of the film increases significantly with surface pressure, above a threshold value of ca. 20 mN m-1.[on SciFinder (R)] %B J Am Chem SocJournal of the American Chemical Society %V 125 %P 9312 - 3 %8 2003/// %@ 0002-7863 %G eng %N 31