Abstract
Constant photocurrent method has been used to study spectral dependence of the absorption coefficient in copper phthalocyanine thin films formed by the molecules with different peripheral groups. Spectral dependence of the absorption coefficient reveals exponential growth in the energy range 1.4–1.6eV and a series of three bands in the energy below 1.4eV. The maximum observed at 1.12eV is attributed to optical transition from ground state S0 to excited triplet state T1 of a molecule. This transition results in creation of triplet excitons. The correspondence between photoluminescence and absorption spectra measured by constant photocurrent method both with respect to peak positions and relative intensities has been found.
Sign-in/Register to access full text options 
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.
