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Flexible Multifunctional Aromatic Polyimide Film: Highly Efficient Photoluminescence, Resistive Switching Characteristic, and Electroluminescence

Author:
Qu, Lunjun, Tang, Lishuang, Bei, Runxin, Zhao, Juan, Chi, Zhenguo, Liu, Siwei, Chen, Xudong, Aldred, Matthew P., Zhang, Yi, Xu, Jiarui
Source:
ACS applied materials & interfaces 2018 v.10 no.14 pp. 11430-11435
ISSN:
1944-8252
Subject:
electrochemiluminescence, films (materials), fluorescence, gold, light emitting diodes, photoluminescence, polymers, semiconductors
Abstract:
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.
Agid:
5960947