Thianthrene 5,5,10,10-tetraoxide-based phosphorescent platinum(II) complexes for solution-processed organic light-emitting diode (OLED) with external quantum efficiency approach 25 %

被引：2

作者：

Liu, Wenping ^{[1
]}

Xu, Shipan ^{[1
]}

Yang, Xiaolong ^{[1
]}

Hang, Huaiteng ^{[1
]}

Du, Xuyang ^{[1
]}

Xi, Jun ^{[2
]}

Ding, Yousong ^{[3
]}

Zhou, Guijiang ^{[1
]}

Chen, Zhao ^{[4
,5
]}

Sun, Yuanhui ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Engn Res Ctr Energy Storage Mat & Devices, Minist Educ, Sch Chem,Xian Key Lab Sustainable Energy Mat Chem, Xian 710049, Peoples R China

[2] Xi An Jiao Tong Univ, Sch Elect Engn, Xian 710049, Peoples R China

[3] Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China

[4] Zunyi Med Univ, Key Lab Basic Pharmacol, Minist Educ, Zunyi 563000, Peoples R China

[5] Zunyi Med Univ, Sch Pharm, Joint Int Res Lab Ethnomedicine, Minist Educ, Zunyi 563000, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2025年 / 503卷

基金：

中国国家自然科学基金;

关键词：

Organic light-emitting devices (OLEDs); Platinum(II) complexes; Solution-processed; High-efficiency; Thianthrene 55,10,10 tetaoxide; IRIDIUM(III) COMPLEXES; LIGANDS; EMISSION; EMITTERS; PERFORMANCE; STRATEGY; DEVICES; DESIGN; GREEN;

D O I：

10.1016/j.cej.2024.158284

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Pt(II) complexes have great potential in realizing high efficiency OLED luminous materials, and the development of achieving high quantum efficiency in solution-processed OLED is a great challenge. Here, we designed and synthesized three efficient emitters by combining isoquinoline, thiophene and pyridine groups with thianthrene 5,5,10,10-tetraoxide group. With the introduction of thianthrene 5,5,10,10-tetraoxide group, these Pt(II) complexes show improved electron injection/transport capabilities. A range of emission energies that can be tuned from green to red was realized by solution-processed OLEDs. Their electrochemical and photophysical properties were explored and analyzed. The structure of Pt-SOPy complex was also characterized by X-ray crystallography. Importantly, the green OLED using Pt-SOPy as an emitter shows excellent performance with a peak external quantum efficiency (EQE) of 24.7 %. As far as we known, the value sets a new record for solution-processed green OLEDs based on Pt(II) complexes.

引用

页数：7

共 49 条

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