Electronic and optoelectronic devices using organic materials as active elements, for
example, organic light-emitting diodes (OLEDs), organic photovoltaic devices (OPVs) …

White electroluminescent (EL) emission from single-layered solid-state light-emitting
electrochemical cells (LECs) based on host− guest cationic iridium complexes has been …

A more efficient OLED device with blue emission characteristic of terfluorene has been
achieved by using a novel molecular doping strategy, in which 4, 5-diazafluorene was …

An unexpected one-pot tandem procedure of 2-bromo-4, 5-diazafluoren-9-one starting from
phenanthroline with a yield of up to 50% has been described. The conversion mechanism …

A spiro-configured bipolar molecule (CSC) that possesses high triplet energy, suitable
energy levels, and balanced ambipolar carrier mobilities was successfully applied as an …

Four-coordinate boron compounds of Ph2B· 1 (2) and (C6F5) 3B (1· H)(3) were prepared
from the reaction of 2-(2-pyridyl) phenol (1· H) ligand with triarylborane starting materials …

The organic light-emitting diodes (OLEDs) employing complex [salen (tBu) 4Al (OC6H4-p-
C6H5)](4) as a hole-blocking layer produced stable green EL emission of Ir (ppy) 3 …

Diazafluorene (DAF) has a similar configuration to a fluorene unit except that two carbon
atoms are replaced with nitrogen atoms, offering an ideal model of supramolecular …

We have synthesized novel spiro-bridged chromophores incorporating a 4, 5-diazafluorene
unit as the electron acceptor (A) and aryl amino groups as donor (D) moieties. The …

Highly efficient and emitter concentration insensitive phosphorescent electroluminescent
devices based on a novel rhenium (I)[Re (I)] complex, ie,(4, 5-diaza-9, 9′-spirobifluorene) …