PCFM Lab, GD HPPC Lab, Guangdong Engineering Technology Research Centre for High-Performance Organic and Polymer Photoelectric Functional Films, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry , Sun Yat-sen University , Guangzhou 510275 , China.
ACS Appl Mater Interfaces. 2018 Apr 11;10(14):11430-11435. doi: 10.1021/acsami.8b02712. Epub 2018 Apr 2.
We report a flexible multifunctional aromatic polyimide (BTDBPI) that shows yellow-green fluorescence with high photoluminescence quantum yield (PLQY) of 30% in the film state. The nonvolatile "write once-read many" (WORM) characteristic in a memory device with the configuration of ITO/BTDBPI/Au indicates that BTDBPI possesses organic semiconductor behavior. Moreover, polymer light-emitting diodes (PLEDs) with the structure of ITO/PEDOT:PSS/BTDBPI/TPBI/Mg-Ag exhibits an interesting dual-emission phenomenon that originates from the electroluminescence (EL) of the BTDBPI nanometer film (yellow-green, 525 nm) and TPBI (deep blue, 380 nm), demonstrating that BTDBPI shows both the charge-transporting and EL properties.
我们报道了一种灵活的多功能芳香聚酰亚胺（BTDBPI），它在薄膜状态下具有高达 30%的光致发光量子产率（PLQY），呈现出黄绿色荧光。在具有 ITO/BTDBPI/Au 结构的存储器件中具有非易失性“一次写入多次读取”（WORM）特性，表明 BTDBPI 具有有机半导体行为。此外，具有 ITO/PEDOT:PSS/BTDBPI/TPBI/Mg-Ag 结构的聚合物发光二极管（PLED）表现出有趣的双发射现象，源于 BTDBPI 纳米薄膜（黄绿色，525nm）和 TPBI（深蓝色，380nm）的电致发光（EL），表明 BTDBPI 同时具有电荷输运和 EL 性质。
