Abstract
AbstractA series of axially linked pyrene‐naphthalimide fluorophores (N2Py, N4Py, and BNPy) bearing a different number of 1,8‐naphthalimide units substituted on pyrene and bis‐pyrene cores were designed and synthesized using palladium‐catalyzed cross‐coupling reactions in a stepwise synthetic manner. These molecules were chemically characterized, and their photoelectric properties were explored by spectroscopy, electrochemical and theoretical studies. They exhibited push‐pull characteristics with intense fluorescence in solutions, strong solvatochromic behaviors, good thermal and electrochemical stabilities. N2Py, N4Py, and BNPy were successfully applied as emitters in solution‐processed OLED devices, which resulted in blue‐green emissions with promising device performance. Particularly, the BNPy‐based device achieved the best EL results with a maximum brightness of 3389 cd m−2, a maximum EQE of 3.98 %, a maximum LE of 3.22 cd A−1, and a low turn‐on voltage of 3.2 V.
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.
