Deep-Red/Near-Infrared Electroluminescence from Single-Component Charge-Transfer Complex via Thermally Activated Delayed Fluorescence Channel

被引：70

作者：

Chen, Wen-Cheng ^{[1
,2
,3
]}

Huang, Bin ^{[1
,2
,3
,4
]}

Ni, Shao-Fei ^{[5
]}

Xiong, Yuan ^{[6
,7
]}

Rogach, Andrey L. ^{[6
,7
]}

Wan, Yingpeng ^{[1
,2
,3
]}

Shen, Dong ^{[1
,2
,3
]}

Yuan, Yi ^{[8
]}

Chen, Jia-Xiong ^{[1
,2
,8
]}

Lo, Ming-Fai ^{[1
,2
,3
]}

Cao, Chen ^{[1
,2
,3
]}

Zhu, Ze-Lin ^{[1
,2
,3
]}

Wang, Ying ^{[3
,9
]}

Wang, Pengfei ^{[3
,9
]}

Liao, Liang-Sheng ^{[8
]}

Lee, Chun-Sing ^{[1
,2
,3
]}

机构：

[1] City Univ Hong Kong, Ctr Super Diamond & Adv Films COSDAF, Hong Kong 999077, Peoples R China

[2] City Univ Hong Kong, Dept Chem, Hong Kong 999077, Peoples R China

[3] Jiangsu Second Normal Univ, Inst New Mat Vehicles, CityU CAS Joint Lab Funct Mat & Devices, Nanjing 210013, Jiangsu, Peoples R China

[4] Jiangsu Second Normal Univ, Inst New Mat Vehicles, Jiangsu Key Lab Biofunct Mol, Coll Life Sci & Chem, Nanjing 210013, Jiangsu, Peoples R China

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

[6] City Univ Hong Kong, Dept Mat Sci & Engn, Hong Kong 999077, Peoples R China

[7] City Univ Hong Kong, CFP, Hong Kong 999077, Peoples R China

[8] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Peoples R China

[9] Chinese Acad Sci, TIPC, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China

来源：

ADVANCED FUNCTIONAL MATERIALS | 2019年 / 29卷 / 38期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

intermolecular charge transfer; near-infrared; organic light-emitting diode; single-component charge-transfer complex; thermally activated delayed fluorescence; LIGHT-EMITTING-DIODES; ACCEPTOR; RED; STATE;

D O I：

10.1002/adfm.201903112

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Formation of a single-component charge-transfer complex (SCCTC) is unveiled in solid state of an intermolecular charge-transfer molecule 2-(4-(1-phenyl-1H-phenanthro[9,10-d]imidazol-2-yl)phenyl)anthracene-9,10-dione (PIPAQ). Intermolecular donor-acceptor interactions between two PIPAQ molecules is the primary driving force for self-association and contributes to intermolecular charge transfer. The SCCTC character is fully verified by crystallographic, photophysical, electron spin resonance, and vibrational characterizations. The PIPAQ-based SCCTC is first applied in light-emitting devices as an emissive layer to realize efficient deep-red/near-infrared electroluminescence. This work provides new insights into SCCTC and represents an important step toward their applications in optoelectronic devices.

引用

页数：9

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