Micromolecular electron transport material based on pyridine and triazole, preparation method and organic light-emitting diode thereof
AssigneeShenzhen China Star Optoelectronics Technology Co., Ltd.
InventorsShi-Jian SU, Hua YE, Kunkun LIU, Xianglong LI, Yi-Fan WANG, Qinghua ZOU
Life of this patent
Estimating the term…
Abstract
The present invention provides a micromolecular electron transport material based on pyridine and triazole, which is represented by the formula I, and an organic light-emitting diode using the micromolecular electron transport material. The micromolecular electron transport material of the present invention can improve the capacity of electron injection, transmitting and hole-blocking, thus can gain high ET and reduce the driving voltage of device.
Claims12
A micromolecular electron transport material based on pyridine and triazole, contained in an electron transfer layer of an organic light-emitting diode or a polymer light-emitting diode, wherein the micromolecular electron transport material is represented by the following formula I:
- wherein a and b are natural number greater than or equal to 1, respectively;
- N is in ortho-, meta- or para-position of the pyridine ring in formula I;
- and
- benzene rings in formula I are connected on ortho-, meta- or para-position.
Dependencies are inferred from the claim text.