Abstract
Thin films of 2, 9, 16, 23-tetra-octyloxy copper phthalocyanine (CuPcA 8) and 2, 9, 16, 23-tetra-hexadecylocy copper phthalocyanine (CuPcA 16) were prepared by Langmuir–Blodgett technique and were characterized by UV–vis spectra. The macro-ring orientation of the two copper phthalocyanine molecules in the films was explored by polarized UV–vis spectra. The linear relationship between the absorption intensity and the number of deposited layers confirmed the highly ordered layered-structure of the films. Moreover, it was found the phthalocyanine molecules were arranged with an angle of 49.8° and 63.6° to the substrates for CuPcA 8 and CuPcA 16, respectively. The gas-sensing properties of the LB films to methanol, ethanol, and propanol were detected at room temperature. By introducing appropriate substituent onto the macro-ring of the phthalocyanine, the molecular orientation in the films could be controlled, and their gas response might be improved.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
