High-luminescence non-doped green OLEDs based on a 9,9-diarylfluorene- terminated 2,1,3-benzothiadiazole derivative
Journal
Journal of Materials Chemistry
Journal Volume
19
Journal Issue
6
Pages
773-780
Date Issued
2009
Author(s)
Ku, S.-Y.
Chi, L.-C.
Hung, W.-Y.
Yang, S.-W.
Tsai, T.-C.
Chen, Y.-H.
Abstract
We have prepared a highly efficient non-doped green organic light-emitting diode (OLED) incorporating a novel 9,9-diarylfluorene-terminated 2,1,3-benzothiadiazole green emitter (DFBTA), which exhibits an excellent solid state photoluminescence quantum yield (81%), and new triaryldiamines (DPAInT2, DPAInF) with high hole mobility derived from rigid and coplanar cores. The optimal device: ITO/DPAInT2/DPAInF/TCTA/DFBTA/Alq3/LiF/Al displayed impressive device characteristics, including a maximum external quantum efficiency (η ext) of 3.7% (12.9 cd A -1) and a maximum brightness at 168 000 cd m -2. © The Royal Society of Chemistry 2009.
SDGs
Other Subjects
Benzothiadiazole; Device characteristics; External quantum efficiencies; Non-doped; Optimal devices; Organic light-emitting diodes; Photoluminescence quantum yields; Hole mobility; Light; Light emission; Light emitting diodes; Luminescence; Organic light emitting diodes (OLED); Photovoltaic effects; Quantum efficiency
Type
journal article