含三氟乙酰苯基喹啉配体的铱配合物的合成及其电致发光性能

引用本文: 陈熳, 王雪梅, 何禹亨, 杨建, 王松, 童碧海. 含三氟乙酰苯基喹啉配体的铱配合物的合成及其电致发光性能[J]. 无机化学学报, 2015, (12): 2285-2290. doi: 10.11862/CJIC.2015.300 shu

Citation: CHEN Man, WANG Xue-Mei, HE Yu-Heng, YANG Jian, WANG Song, TONG Bi-Hai. Synthesis and Electroluminescence Properties of Iridium Complex Based on Trifluoroacetylphenyl Quinolone Ligand[J]. Chinese Journal of Inorganic Chemistry, 2015, (12): 2285-2290. doi: 10.11862/CJIC.2015.300 shu

含三氟乙酰苯基喹啉配体的铱配合物的合成及其电致发光性能

1.
安徽工业大学冶金工程学院, 马鞍山 243002

通讯作者: 童碧海

基金项目:
国家自然科学基金(No.21572001) (No.21572001)

安徽省高校自然科学研究项目(No.KJ2013A063) (No.KJ2013A063)

安徽省大学生创新创业训练计划(No.201510360119) 资助项目。 (No.201510360119)

摘要: 通过2-(4'-三氟乙酰苯基)-4-苯基喹啉(tfapqH)与三氯化铱反应生成了二氯桥中间体,然后用吡啶-2-甲酸(picH)解离得到双环金属铱配合物Ir(tfapq)₂pic。Ir(tfapq)₂pic在二氯甲烷中的发光波长为584 nm,量子产率约为0.846,磷光寿命为1.211 μs,比没有三氟乙酰修饰的铱配合物波长蓝移的10 nm,量子效率提高了约5%,磷光寿命降低了0.286 μs,辐射跃迁加快,半波宽度降低了约26%,色纯度提高。其HOMO能级为-5.405 eV,LUMO能级为-3.277 eV,能级相对于未修饰的配合物都有所降低,且HOMO降低更明显,总的效果是能级差增加。Ir(tfapq)₂pic 10%的热失重温度为301 ℃,比未修饰铱配合高近50 ℃。当Ir(tfapq)₂pic以2%质量浓度掺杂于PVK-PBD中做成电致发光器件时的效率最高,电致发光波长为594 nm。器件的启明电压为7.3 V,最大亮度为8 571 cd·m^-2,最大外量子效率为12.65%,对应的流明效率为22.14 cd·A^-1。色坐标是(0.58,0.40)。

关键词:

环金属铱配合物;三氟乙酰苯基喹啉;有机电致发光

English

Synthesis and Electroluminescence Properties of Iridium Complex Based on Trifluoroacetylphenyl Quinolone Ligand

1.
School of Metallurgy Engineering, Anhui University of Technology, Maanshan, Anhui 243002, China

Corresponding author: 童碧海

Received Date: 07 May 2015
Fund Project:
国家自然科学基金(No.21572001)

安徽省高校自然科学研究项目(No.KJ2013A063)

安徽省大学生创新创业训练计划(No.201510360119) 资助项目。

Abstract: A cyclometallated Ir^Ⅲ-μ-chloro-bridged dimer was synthesized by the reaction of a trifluoroacetylphenyl quinoline derivative and IrCl₃. Then bicyclometalated iridium complex Ir(tfapq)₂pic was synthesized by the reaction between dimer and picolinic acid. Ir(tfapq)₂pic emitted a strong phosphorescence centered at 584 nm in a CH₂Cl₂ solution. Its lifetime is 1.211 μs and quantum yield is approximately 0.846 in a CH₂Cl₂ solution. Compared with the unmodified iridium complex, Ir(tfapq)₂pic have a blue shift emission wavelength, sharp peak, higher quantum yield and shorter lifetime. The HOMO energy level is -5.405 eV and LUMO is -3.277 eV, which both lower than that of unmodified iridium complex and the greater energy band. The 10% weight loss temperature of Ir(tfapq)₂pic is 301 ℃, which 50 ℃ higer than that of unmodified iridium complex. The organic light-emitting device based on Ir(tfapq)₂pic (2wt% doped in PVK-PBD film) exhibits the best efficiency. It's peak electrophosphorescence wavelength is 594 nm. Its maximum external quantum efficiency is 12.65% and the corresponding efficiency is 22.14 cd·A^-1. The maximum luminance is 8 571 cd·m^-2. The turn-on voltage is 7.3 V with the Commission Internationale de L'Eclairage (CIE) coordinates of (0.58, 0.40).

Key words:

cyclometalated iridium complex;trifluoroacetylphenyl quinoline;organic electroluminescence

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

含三氟乙酰苯基喹啉配体的铱配合物的合成及其电致发光性能

通讯作者: 童碧海

English

Synthesis and Electroluminescence Properties of Iridium Complex Based on Trifluoroacetylphenyl Quinolone Ligand

Corresponding author: 童碧海

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

含三氟乙酰苯基喹啉配体的铱配合物的合成及其电致发光性能

通讯作者: 童碧海

English

Synthesis and Electroluminescence Properties of Iridium Complex Based on Trifluoroacetylphenyl Quinolone Ligand

Corresponding author: 童碧海

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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