868046-60-0Relevant academic research and scientific papers
Nondoped pure-blue OLEDs based on amorphous phenylenevinylene- functionalized twisted bimesitylenes
Moorthy, Jarugu Narasimha,Venkatakrishnan, Parthasarathy,Natarajan, Palani,Lin, Zhenghuan,Chow, Tahsin J.
experimental part, p. 2599 - 2609 (2010/06/15)
The twisted bimesitylene scaffold hinders crystallization and imparts amorphous nature to the oligophenylenevinylenes (OPVs) generated by 2- and/or 4-fold functionalization. The resultant phenylenevinylenes 1?5 with unique molecular topology exhibit excellent thermal and solid-state luminescence properties. The amorphous nature permits their application as pure-blue emissive materials in OLEDs. Under nondoped conditions, the device performances observed surpass those for analogous and simple oligophenylenevinylenes known so far; for example, the device based on OPV 2 as an emitting material and structurally analogous Bim-DPAB as a hole-transporting material yields pure-blue electroluminescence with an external quantum efficiency of ca. 4.70% at 20 mA/cm2, which is higher than those reported for nondoped pure-blue OPV emitters.
Three-dimensional four-connecting organic scaffolds with a twist: Synthesis and self-assembly
Moorthy, Jarugu Narasimha,Natarajan, Ramalingam,Venugopalan, Paloth
, p. 8568 - 8571 (2007/10/03)
We have synthesized a novel class of four-connecting three-dimensional molecular scaffolds 2-5 based on biaryls for supramolecular self-assembly. The X-ray crystal structure analysis of 2 with ethanol reveals a novel O-H...O hydrogen-bonded helical self-a
