A composition for an organic electroluminescent device is a composition for forming an organic light emitting layer of an organic electroluminescent device by wet coating process. The composition contains a phosphorescent material, a charge transport material, and a solvent, in which the phosphorescent material and the charge transport material are each an unpolymerized organic compound, and the first oxidation potential of the phosphorescent material ED+, the first reduction potential of the phosphorescent material ED-, the first oxidation potential of the charge transporting material ET+, and the first reduction potential of the charge transporting material ET- satisfy the following condition: ET-+0.1≤ED-
一种用于有机电致发光器件的组合物是一种用于通过湿涂层工艺形成有机电致发光器件的有机发光层的组合物。该组合物包含磷光材料、电荷传输材料和溶剂,其中磷光材料和电荷传输材料均为未聚合的有机化合物,磷光材料的第一氧化电位 ED+、磷光材料的第一还原电位 ED-、电荷传输材料的第一氧化电位 ET+、电荷传输材料的第一还原电位 ET- 满足以下条件:ET-+0.1≤ED-
Solution, thermal and optical properties of novel poly(pyridinium salt)s derived from conjugated pyridine diamines
作者:Alexi K. Nedeltchev、Haesook Han、Pradip K. Bhowmik
DOI:10.1002/pola.24228
日期:2010.10.15
excellent thermal stabilities of 340–458 °C and high glass transition temperatures >200 °C. As they showed good solubilities in common organic solvents, their solution properties were also characterized for their lyotropic liquid‐crystalline properties with polarizing optical microscopy (POM) studies. Their photoluminescent properties were examined by using a spectrofluorometer in both solution and solid
通过苯基化双(甲苯磺酸吡啶鎓)与4-苯基-2,6-异构体吡啶二胺的环转移聚合反应,制备了几种在主链上具有甲苯磺酸盐和三氟甲酰亚胺抗衡离子的杂环吡啶部分的新型聚吡啶盐。在130-140°C下于二甲亚砜(DMSO)中的双(4-氨基苯基)吡啶反应48小时,或在60°C下于DMSO中将各自的甲苯磺酸酯聚合物与三氟甲基锂进行复分解反应。通过FTIR,1 H,13 C NMR光谱和元素分析对它们的化学结构进行了表征。它们的数均分子量(M n)的范围为8,000-51,000,通过凝胶渗透色谱法测定的多分散度为1.18-2.13。它们具有340–458°C的出色热稳定性,并且玻璃化转变温度> 200°C。由于它们在普通有机溶剂中显示出良好的溶解性,因此还通过偏光光学显微镜(POM)研究了它们的溶致液晶性质,从而表征了它们的溶液性质。通过使用分光荧光计在溶液和固态下检查它们的光致发光性能。它们的量子产率很低,在1
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