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  • 學位論文

藍色螢光有機發光二極體元件結構最佳化

The Optimization of Device Structures of Blue Fluorescent Organic Light Emitting Diode

指導教授 : 莊赋祥
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摘要


In this research, the optimization of device structures of blue fluorescent organic light emitting diode (OLED) with two different host materials UBH-15 (doped with EB-515) or WBH-301 (doped with WBD-701) was fabricated. By adjusting the thickness of each layer in OLED structure as well as total thickness of device, the position of recombination zone was controlled and located in the central region of emitting layer (EML) that significantly increases device efficiency. Two devices (UBH-15: EB-515 and WBH-301: WBD-701) with the current efficiency of 7.4 cd/A at current density 50 mA/cm2 and with Commission Internationale de L’Eclairage (CIE) coordinates (x= 0.17, y= 0.33), and 9.0 cd/A at 50 mA/cm2, CIE coordinates (0.18, 0.33), respectively.

並列摘要


In this research, the optimization of device structures of blue fluorescent organic light emitting diode (OLED) with two different host materials UBH-15 (doped with EB-515) or WBH-301 (doped with WBD-701) was fabricated. By adjusting the thickness of each layer in OLED structure as well as total thickness of device, the position of recombination zone was controlled and located in the central region of emitting layer (EML) that significantly increases device efficiency. Two devices (UBH-15: EB-515 and WBH-301: WBD-701) with the current efficiency of 7.4 cd/A at current density 50 mA/cm2 and with Commission Internationale de L’Eclairage (CIE) coordinates (x= 0.17, y= 0.33), and 9.0 cd/A at 50 mA/cm2, CIE coordinates (0.18, 0.33), respectively.

參考文獻


2. A Bernanose, "The mechanism of organic electroluminescence", J. Chim. Phys., 52:396–400, 1955.
4. CWTang and SAVanSlyke, "Organic electroluminescent diodes", Appl. Phys. Lett., 51:913–915, 1987.
9. Y.Sun, S.R.Forrest, "High-efficiency white organic light emitting devices with three separate phosphorescent emission layers", Appl.Phys.Lett.91 (2007) 263503.
10. S.Reineke, F.Lindner, G.Schwartz, N.Seidler, K.Walzer, B.Lussem, K.Leo, "White organic light-emitting diodes with fluorescent tube efficiency", Nature 459 (2009) 234.
11. Q.Wang, J.Q.Ding, D.G.Ma, Y.X.Cheng, L.X.Wang, X.B.Jing, F.S.Wang, "Harvesting Excitons Via Two Parallel Channels for Efficient White Organic LEDs with Nearly 100% Internal Quantum Efficiency: Fabrication and Emission-Mechanism Analysis", Adv. Funct. Mater.19 (2009)84.

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