[EN] HIGH GLASS TRANSITION TEMPERATURE "MEDIUM-SIZED" AMBIPOLAR HOST MATERIALS<br/>[FR] MATÉRIAU HÔTE AMBIPOLAIRE DE « TAILLE MOYENNE » À HAUTE TEMPÉRATURE DE TRANSITION VITREUSE
申请人:GEORGIA TECH RES INST
公开号:WO2014011477A1
公开(公告)日:2014-01-16
Disclosed herein are am bipolar host compounds represented by formula (I), wherein: a) R4 is an optionally substituted aryl or an optionally substituted heteroaryl group; b) n is at least 2; e) for each (ii) at least one of R1, R2 and R3 is independently an optionally substituted carbazole group, and the remaining of R1, R2 and R3 are independently selected from hydrogen, halogen and a C1-20 organic group: and d ) Y is selected from (III), wherein R5 is an.optionally substituted aryl group, an optionally substituted heteroaryl group, an optionally substituted alkyl group or an optionally substituted heteroalkyl group, and wherein R6 is hydrogen,, an optionally substituted aryl group, an optionally substituted heteroaryl group, an optionally substituted alkyl -group or an optionally substituted heteroalky! group. The compounds can be used in OLED devices and are ambipolar. The OLED devices can show high efficiency and high luminance.
本公开涉及的是由式(I)表示的双极主体化合物,其中:a)R4是可选地取代的芳基或可选地取代的杂环芳基;b)n至少为2;e)对于每个(ii)中的至少一个,R1、R2和R3中的至少一个独立地是可选地取代的咔唑基团,而R1、R2和R3的其余部分独立地选择自氢、卤素和C1-20有机基团;和d)Y从(III)中选择,其中R5是可选地取代的芳基团、可选地取代的杂环芳基团、可选地取代的烷基团或可选地取代的杂环烷基团,而R6是氢、可选地取代的芳基团、可选地取代的杂环芳基团、可选地取代的烷基团或可选地取代的杂环烷基团。这些化合物可用于OLED器件,是双极的。OLED器件可以显示高效率和高亮度。