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.
提供了关于基于
咔唑的GUMBOS(基于有机盐的均匀材料组)的各种示例,以及其在有机发光二极管(OLEDs)中的应用。在一个示例中,一种组合物包括固相
咔唑基GUMBOS(基于有机盐的均匀材料组),其中包括诸如
三氟甲磺酸盐([OTf])、双(三
氟甲磺酰)
亚胺盐([NTf2])、双(五
氟乙磺酰)
亚胺盐([BETI])、四
氟硼酸盐(
BF4)、
六氟磷酸盐(PF6)和/或
硫氰酸盐(SCN)等对离子。基于
咔唑的GUMBOS可以包括
咔唑咪唑基GUMBOS或3,6-二BDC
咔唑基GUMBOS。在另一个示例中,一种方法包括制备两相溶液;搅拌后从两相溶液中分离DCM层;用
水洗涤DCM以去除副产物;并蒸发DCM以形成固相
咔唑咪唑基GUMBOS。制备两相溶液可以包括
咔唑咪唑盐(CM)溶解在
二氯甲烷(DCM)中以及溶解的盐,包括钠盐或
锂盐。