845658-83-5Relevant academic research and scientific papers
Hole transport materials including OLED applications
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, (2015/09/22)
The composition described here comprises at least one hole-transporting compound, wherein the hole-transporting compound comprises a core covalently bonded to at least two arylamine groups, wherein the arylamine group optionally comprises one or more intractability groups. The composition can provide good film formation and stability when coated onto hole injection layers. Solution processing of hole transporting layers of OLEDs can be achieved with the composition described here. Good mobility can be achieved.
Electroactive nanorods and nanorings designed by supramolecular association of π-conjugated oligomers
Dautel, Olivier J.,Robitzer, Mike,Flores, Jean-Charles,Tondelier, Denis,Serein-Spirau, Francoise,Lere-Porte, Jean-Pierre,Guerin, David,Lenfant, Stephane,Tillard, Monique,Vuillaume, Dominique,Moreau, Joel J. E.
experimental part, p. 4201 - 4213 (2009/05/07)
In investigations into the design and isolation of semiconducting nano-objects, the synthesis of a new bisureido π-conjugated organogelator has been achieved. This oligo(phenylenethienylene) derivative was found to be capable of forming one-dimensional supramolecular assemblies, leading to the gelation of several solvents. Its self-assembling properties have been studied with different techniques (AFM, EFM, etc.). Nano-objects have successfully been fabricated from the pristine organogel under appropriate dilution conditions. In particular, nanorods and nanorings composed of the electroactive organogelator have been isolated and characterized. With additional support from an electrochemical study of the organogelator in solution, it has been demonstrated by the EFM technique that such nano-objects were capable of exhibiting charge transport properties, a requirement in the fabrication of nanoscale optoelectronic devices. It was observed that positive charges can be injected and delocalized all along an individual nano-object (nanorod and nanoring) over micrometers and, remarkably, that no charge was stored in the center of the nano-ring. It was also observed that topographic constructions in the nanostructures prevent transport and derealization. The same experiments were performed with a negative bias (i.e., electron injection), but no charge derealization was observed. These results could be correlated with the nature of 1, which is a good electrondonor, so it can easily be oxidized, but can be reduced only with difficulty.
Semiconductor polymers and devices thereof
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, (2008/06/13)
An electronic device containing a thienylene-arylene polymer comprised of a repeating segment containing at least one 2,5-thienylene segment of (I) or (II), and at least one arylene segment of (IIIa), (IIIb),or (IIIc) wherein each R is independently an al
