Construction of two AIE luminogens comprised of a tetra-/tri-phenylethene core and carbazole units for non-doped organic light-emitting diodes

Shi, Heping1,2; Wang, Shujuan1; Qin, Liyuan1; Gui, Chen4; Zhang, Xinlei1; Fang, Li1; Chen, Shuming3; Tang, Ben Zhong2,4

2018-02

10.1016/j.dyepig.2017.10.017

DYES AND PIGMENTS   影响因子和分区

0143-7208

1873-3743

In this work, we report the synthesis of two aggregation-induced emission materials (PPBC and DPPBC) with different conjugate strengths of penylethene-carbazole moieties. Their structures have been characterized by nuclear magnetic resonance spectroscopy, high-resolution mass spectra and elemental analysis. Besides, their thermal, photophysical, electrochemical and electroluminescent properties are investigated systematically. Their electrical structures are also studied by theoretical methods. The results reveal that they possess good thermal property of decomposition temperature (313 and 214 degrees C) and low LUMO energy of -1.91 and -1.87 eV. PPBC and DPPBC also show good electrochemical stabilities and optical properties. Non-doped OLED (device I) adopting PPBC as a deep blue emitter presents deep blue emission (the peak is at 441 nm) with CIE coordinates (0.21, 0.22), possessing a turn-on voltage of 4.8 V, a maximum luminance of 7500 cd m(-2), a maximum luminance efficiency of 1.286 cd A-land a maximum power efficiency of 1.339 lm/w; and non-doped OLED (device II) fabricated by DPPBC emits blue-green light (the peak is at 508 nm) with CIE coordinates (0.23, 0.45), achieving a turn-on voltage of 3.6 V, a maximum luminance of 10290 cd m(-2), a maximum luminance efficiency of 4.075 cd A(-1) and a maximum power efficiency of 2.559 lm/w. The results demonstrate that these new AIE compounds are promising solid-state luminescent materials with practical utility in non-doped OLED.

Carbazole Phenylethene Aggregation-induced emission Electroluminescence

SCI ; EI

英语

通讯

Shenzhen Peacock Plan[KGTD2015071710313656]

Chemistry ; Engineering ; Materials Science

Chemistry, Applied ; Engineering, Chemical ; Materials Science, Textiles

WOS:000423246900037

ELSEVIER SCI LTD

20174304300560

Electroluminescence ; Light ; Luminance ; Mass spectrometry ; Nuclear magnetic resonance spectroscopy ; Polycyclic aromatic hydrocarbons ; Polymethyl methacrylates ; Supercomputers

Semiconductor Devices and Integrated Circuits:714.2 ; Digital Computers and Systems:722.4 ; Light, Optics and Optical Devices:741 ; Light/Optics:741.1 ; Chemistry:801 ; Organic Compounds:804.1 ; Organic Polymers:815.1.1

CHEMISTRY

Web of Science

1.Shanxi Univ, Sch Chem & Chem Engn, Taiyuan 030006, Shanxi, Peoples R China
2.South China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China
3.South Univ Sci & Technol China, Dept Elect & Elect Engn, Shenzhen 518055, Guangdong, Peoples R China
4.Hong Kong Univ Sci & Technol, Inst Mol Funct Mat, Inst Adv Study,Dept Chem,Div Life Sci, Div Biomed Engn,State Key Lab Mol Neurosci, Kowloon, Hong Kong, Peoples R China

Shi, Heping,Wang, Shujuan,Qin, Liyuan,et al. Construction of two AIE luminogens comprised of a tetra-/tri-phenylethene core and carbazole units for non-doped organic light-emitting diodes[J]. DYES AND PIGMENTS,2018,149:323-330.

Shi, Heping.,Wang, Shujuan.,Qin, Liyuan.,Gui, Chen.,Zhang, Xinlei.,...&Tang, Ben Zhong.(2018).Construction of two AIE luminogens comprised of a tetra-/tri-phenylethene core and carbazole units for non-doped organic light-emitting diodes.DYES AND PIGMENTS,149,323-330.

Shi, Heping,et al."Construction of two AIE luminogens comprised of a tetra-/tri-phenylethene core and carbazole units for non-doped organic light-emitting diodes".DYES AND PIGMENTS 149(2018):323-330.