Abstract
Absorption and luminescence spectra of tetracene have been investigated under pressure up to 31.7 kbar, using a diamond anvil cell. The exciton-phonon coupling constant increases with increasing pressure and at 22.6 kbar the free-exciton luminescence appears to be replaced by self-trapped-exciton luminescence. The Davydov splitting increases at a rate of 83 cm −1/kbar in the pressure range below 8 kbar, and 46.4 cm −1/kbar in the range above 12 kbar. The intermolecular resonance interaction at high pressures seems to have short-range character. Pressure-induced phase transitions which occur at 3 and 12 kbar are briefly discussed.
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.
