申请人:BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERSITY AND AGRICULTURAL AND MECHANICAL COLLEGE
公开号:US10109802B2
公开(公告)日:2018-10-23
Various examples are provided for carbazole-based GUMBOS (group of uniform materials based on organic salts), and its application in organic light emitting diodes (OLEDs). In one example, a composition includes a solid phase carbazole-based GUMBOS (group of uniform materials based on organic salts) comprising a counterion such as, e.g., trifluoromethanesulfonate ([Otf]), bis-(trifluoromethanesulfonyl)imide ([NTf2]), bis-(pentafluoroethylsulfonyl)imide ([BETI]), tetrafluoroborate (BF4), hexafluorophosphate (PF6), and/or thiocyanate (SCN). The carbazole-based GUMBOS can include carbazoleimidazole-based GUMBOS or 3,6-diBDC carbazolium-based GUMBOS. In another example, a method includes preparing a biphasic solution; separating a layer of DCM from the biphasic solution after stirring; washing the DCM with water to remove byproducts; and evaporating the DCM to form a solid phase carbazoleimidazole-based GUMBOS. Preparing the biphasic solution can include carbazoleimidazolium iodide (CM) dissolved in dichloromethane (DCM) and a dissolved salt including a sodium salt or a lithium salt.
本文提供了咔唑基 GUMBOS(基于有机盐的均匀材料组)及其在有机发光二极管(OLED)中应用的各种实例。在一个例子中,一种组合物包括固相咔唑基 GUMBOS(基于有机盐的均匀材料组),该固相咔唑基 GUMBOS(基于有机盐的均匀材料组)包含反离子,例如三氟甲烷磺酸盐([OTF])、双(三氟甲烷磺酰)亚胺([NTf2])、双(五氟乙基磺酰)亚胺([BETI])、四氟硼酸盐(BF4)、六氟磷酸酯(PF6)和/或硫氰酸盐(SCN)。咔唑基 GUMBOS 可以包括咔唑咪唑基 GUMBOS 或 3,6-diBDC咔唑基 GUMBOS。在另一个例子中,方法包括制备双相溶液;搅拌后从双相溶液中分离出一层二氯甲烷;用水洗涤二氯甲烷以除去副产物;蒸发二氯甲烷以形成固相咔唑咪唑基 GUMBOS。制备双相溶液可包括溶解在二氯甲烷(DCM)中的咔唑咪唑碘化铵(CM)和包括钠盐或锂盐在内的溶解盐。