tert-Butylated spirobifluorene derivative incorporating triphenylamine groups: A deep-blue emitter with high thermal stability and good hole transport ability for organic light emitting diode applications

Unusual Electrochemical Properties of the Electropolymerized Thin Layer Based on a s-Tetrazine-Triphenylamine Monomer

“…This alternative route of conductive layer synthesis offers some advantages such as cheaper and faster preparation of pure product, and also enables an alternative approach for fundamental characterization. , Taking into consideration all those facts, our aim was to prepare and characterize stable, electroactive layers by electrochemical polymerization of bipolar s -tetrazine derivatives, which could be used in electrofluorochromic windows. As a donor group, the triphenylamine moiety was chosen due to the fact it is a well-known electron-rich fluorophore capable of electropolymerization − and in parallel employed in many organic electronic and optoelectronic applications. − Our study has brought unexpected results on the polymers.…”

An efficient solution-processable non-doped hybridized local and charge-transfer (HLCT) emitter for a simplified organic light-emitting diode

“…The feature of high thermal stability and good filmforming capability of PBzFC is useful and necessary for the fabrication of OLED devices by solution-based methods. 65,66 The electronic properties and redox behavior of PBzFC were analyzed by cyclic voltammetry (CV) measurement performed in dichloromethane containing 0.1 M n-Bu 4 NPF 6 as a supporting electrolyte under an argon atmosphere. As shown in Fig.…”

Dispiro and Propellane: Novel Molecular Platforms for Highly Efficient Organic Light-Emitting Diodes

“…However, SBF compounds generally showed high ionization potential, which could lead to the relatively large hole injection barrier. 28 Therefore, the structural modifications were applied to tune the frontier orbital energy levels. For example, the electron-donating groups such as triphenylamine and carbazole were introduced into the spiro structure to improve the hole injection and transport abilities (Scheme 1).…”

“…In addition, it can preserve high triplet energy because the central sp 3 hybridized carbon atom can break the conjugation between the two fluorene motifs. However, SBF compounds generally showed high ionization potential, which could lead to the relatively large hole injection barrier . Therefore, the structural modifications were applied to tune the frontier orbital energy levels.…”