Resilient,environment tolerant and biocompatible electroluminescent devices with enhanced luminance based oncompliant andself-adhesive electrodes  

作　　者：Ya Lu Yuanyuan Chen Haoyu Sun Fang Deng Changtong Mei Xinwu Xu Qinglin Wu Huining Xiao Yiying Yue Jingquan Han 

机构地区：[1]Co-Innovation Center of Efficient Processing and Utilization of Forest Resources,International Innovation Center for Forest Chemicals and Materials,Joint International Research Lab of Lignocellulosic Functional Materials,College of Materials Science and Engineering,Nanjing Forestry University,Nanjing 210037,China [2]School of Renewable Natural Resources,Louisiana State University,Baton Rouge,LA 70803,USA [3]Department of Chemical Engineering,University of New Brunswick,Fredericton,NB E3B 5A3,Canada [4]College of Biology and Environment,Nanjing Forestry University,Nanjing 210037,China

出　　处：《npj Flexible Electronics》2024年第1期532-544,共13页npj-柔性电子(英文)

基　　金：funded by the National Key Research and Development Program of China(Grant No.2023YFD2200504);the National Natural Science Foundation of China(Grant Nos.32371803,31901274);Independent Innovation Fund for Agricultural Science and Technology of Jiangsu Province(Grant No.CX(23)3059);Youth Top Talent Project of National Forestry and Grassland Administration of China(Grant No.2023132002);13th China Special Postdoctoral Science Foundation(Grant No.2020T130303);China Postdoctoral Science Foundation(Grant No.2019M661854);Postdoctoral Science Foundation of Jiangsu Province(Grant No.2019K142).

摘　　要：Electroluminescent(EL)devices are of great significance for expanding the application range of optoelectronics.However,the realization of EL devices with environment-tolerance,stretchability,mechanical cycling stability,self-adhesion,biocompatibility,and high dielectric constant still remains a challenge.Herein,a type of EL device with enhanced comprehensive performances composing of a chlorinated barium titanate/phosphor/polydimethylsiloxane(Cl-BT/phosphor/PDMS)luminescent layer sandwiched between two silver nanowire-cellulose nanocrystal with II crystalline allomorph/Triton X-100 modified polydimethylsiloxane(AgNW-CNC II/TX-PDMS)electrodes fabricated through a full solution-processing strategy is proposed.Environmentally-friendly CNC II with high transmittance acts as an antioxidant,dispersant and film-former for AgNWs.The hydrophilic modification of TX to PDMS imparts the electrodes with self-adhesion,high stretchability,as well as strong interfacial bonding between TX-PDMS and AgNW-CNC II.The electrodes achieve skin-like modulus by adjusting TX content,endowing the EL devices with a high compliance(186 kPa of Young’s modulus).The luminescent layer with Cl-BT exhibits a high dielectric constant(19)and luminance(up to 72 cdm^(−2)).The assembled EL device with excellent cyclic stability(luminance retention 85%after 400 cycles),durability(luminance retention>94%after 400 min)and stretchability(88%luminance at 200%strain)can work properly at broad temperatures(−20~70℃)and underwater.This biocompatible and self-adhesive EL device demonstrates great potential for implantable biomedical devices and wearable displays under harsh environments.

关 键 词：MODULUS durability silver 

分 类 号：TN3[电子电信—物理电子学]