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采用X射线光电子能谱 (XPS)和UV Vis光谱研究了 2个以 8 氨基喹啉为亲水头基的两亲配体 ;2 长链烷基丙二酸二 (8 氨基喹啉 )酰胺 (H2 A) (H2 A1 2 :长链烷基为十二烷基 ;H2 A1 6 :十六烷基 )在气 /水界面与Cu2 + 离子的配位作用。配位后H2 A1 2 和H2 A1 6 单分子膜的崩溃压分别由 12 5和 15 6mN·m- 1 增加至 2 8 0和33 8mN·m- 1 。从含Cu2 + 离子亚相表面组装的LB膜出现了Cu2 + 离子的特征XPS峰 ,Cu2p为 935和 95 5eV ,XPS表明H2 A与Cu2 + 的配位比为 1∶1。H2 A的LB膜可以用作电致发光 (EL)器件的空穴传输材料 ,三层EL器件ITO/TPD/LB膜 /Alq3/Al(LB膜分别为 15层H2 A1 2 和 15层H2 A1 6 )的驱动电压分别为 6 5和 7 5V ,最大亮度分别为 6 2 1和 2 0 1cd·m- 2 。
Two X-ray photoelectron spectroscopy (XPS) and UV Vis spectroscopy were used to study two amphiphilic ligands with 8-aminoquinoline as hydrophilic head group; 2 long-chain alkylmalonic acid bis (8-aminoquinoline) H2 A) (H2 A1 2: long-chain alkyl is dodecyl; H2 A1 6: hexadecyl) at the air / water interface with Cu2 + ions. The collapse pressure of H2 A1 2 and H2 A1 6 monolayers increased from 125 and 156 mN · m -1 to 280 and 33 8 mN · m -1, respectively. The characteristic XPS peaks of Cu2 + ions appeared on LB films assembled on the surface of Cu2 + ion sub-phase. The Cu2p values were 935 and 955eV, respectively. XPS indicated that the coordination ratio of H2A to Cu2 + was 1: 1. The LB film of H2 A can be used as a hole transport material for electroluminescent (EL) devices. The three-layer EL device ITO / TPD / LB film / Alq3 / Al 6) have driving voltages of 65 and 75 V, respectively, and their maximum brightness is 6 2 1 and 2 0 1 cd · m-2, respectively.