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Synthesis and Electro-Optical Properties of 9,10-Substituted Anthracene Derivatives for Flexible OLED Devices
- Synthesis and Electro-Optical Properties of 9,10-Substituted Anthracene Derivatives for Flexible OLED Devices
- Han, YS[Han, Yoon Soo]; Jeong, S[Jeong, Seonju]; Ryu, SC[Ryu, Sang Chul]; Park, EJ[Park, Eun Jung]; Lyu, EJ[Lyu, Eon Joo]; Kwak, G[Kwak, Giseop]; Park, LS[Park, Lee Soon]
- DGIST Authors
- Han, YS[Han, Yoon Soo]; Jeong, S[Jeong, Seonju]
- Issue Date
- Molecular Crystals and Liquid Crystals, 513, 163-178
- Article Type
- Article; Proceedings Paper
- Anthracene; Anthracene Derivateives; Anthracene Derivatives; Conjugated Systems; Electro-Optical Properties; Electron Densities; End Capping; Flexible Oled; Fluorescence; Fluorescence Maxima; Helmet Mounted Displays; High Currents; High Temperature; High Temperature Operations; Low Threshold Voltage; Melting Point; Melting Temperatures; OLED; Optical Properties; Organic Light-Emitting Diodes (OLEDs); Organic Polymers; Phenylethynyl; Red Shift; Silanes; Sonogashira Reactions; Synthesis (Chemical); Trimethylsilyl
- A silylated anthracene derivative, bis[2-(p-trimethylsilyl)phenylethynyl] anthracene (1), was synthesized by using Sonogashira reaction. Compound 1 showed two absorption maxia(max,abs) at 444 and 447nm, and fluorescence maximum (max,em) at 478nm. Compound 1 had higher melting temperature of 274C compared to anthracene 210C presumably due to confinement of -conjugated system by trimethylsilyl end-capping, which will be beneficial in the high temperature operation condition of OLED devices. As compared to the commercially available, blue-light emitting, material 4 and tert-butylated compound 2, the compound 1 showed small red-shift of 9nm in the OLED emission from the by PL max due to the increased electron density in the anthracene ring. The compound 1 was also found to be easily fabricated in the flexible OLED devices and showed a low threshold voltage and high current efficiency compared with other anthracene derivatives.
- Taylor and Francis Ltd.
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