Characterization of neodymium bisphthalocyanine Langmuir-Blodgett films for gas-sensibility

The deposition of Langmuir-Blodgett film of neodymium bisphthalocyanine derivatives is reported for the first time. Optical absorption data reveal that these films call be deposited in a reproducible manner; results are also presented showing the extreme sensitivity and selectivity of their electrical conductivity to NH3 in room temperature. The Nd bisphthalocyanine LB film is a sensitive, reproducible. rapid and stable gas sensor. Neodymium bisphthalocyanine derivatives will be candidates for thin film gas-sensitive materials. (C) 1998 Elsevier Science S.A. All rights reserved.