Novel triarylamine dendrimers as a hole-transport material with a controlled metal-assembling function.
Novel triarylamine dendrimers as a hole-transport material with a controlled metal-assembling function.
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DOI：
10.1021/ja034811p
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发表时间：
2003-06
影响因子：
15
通讯作者：
Norifusa Satoh;Jun-Sang Cho;M. Higuchi;Kimihisa Yamamoto
中科院分区：
文献类型：
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作者：
Norifusa Satoh;Jun-Sang Cho;M. Higuchi;Kimihisa Yamamoto
以四氯化钛为催化剂，通过脱水反应合成了一系列以三芳胺为核的苯甲亚胺树枝状大分子（TPA-DPA）。第四代（G4）TPA-DPA与SnCl 2的络合不是以随机的方式而是以逐步的方式从G4树枝状聚合物的核心到末端亚胺进行。TPA-DPA G4的分子尺寸比DPA G4在THF溶液中的分子尺寸大，并且具有类似球状蛋白的刚性球结构。制备了有机发光二极管（OLED），并且使用TPA-DPA-金属配合物作为空穴传输材料的器件的EL性能显著提高（约100 nm）。20倍）。
A series of phenylazomethine dendrimers with a triarylamine core (TPA-DPA) were synthesized by dehydration using TiCl4. The complexation of the fourth genereration (G4) TPA-DPA with SnCl2 proceeds in not a random but a stepwise fashion from the core to the terminal imines of the G4 dendrimer. The molecular size of TPA-DPA G4 is larger than that of DPA G4 in THF solution and has a rigid sphere structure like a globular protein. Organic light-emitting diodes (OLEDs) were fabricated, and the EL performances of the devices using the TPA-DPA-metal complexes as the hole-transport materials are drastically increased (ca. 20 times) by metal complexation.