Abstract
We describe the relationship between the rate constant of internal conversion and vibronic coupling constant (VCC) based on the crude-adiabatic approximation. Vibronic coupling density (VCD) is introduced to clarify the origin of vibronic couplings from the local picture. The control of vibronic couplings from pseudo-degenerate excited electronic states gives the suppression of internal conversions. We discuss the fluorescence via higher triplets (FvHT) mechanism observed in the organic light-emitting diodes (OLEDs) of 1,4-bis(10-phenylanthracene-9-yl)benzene (BD1) used as a fluorescent dopant and the aggregation-induced enhanced emission (AIEE) of 1,2-bis(pyridylphenyl)ethene (CNPPE).
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.
