ITO/Cu multilayer electrodes for high-brightness electrochromic displays  

作　　者：Xueqing Tang Zishou Hu Zhen Wang Jian Chen Xinyang Mu Ge Song Peiyan Sun Zhengji Wen Jiaming Hao Shan Cong Zhigang Zhao 

机构地区：[1]School of Nano-Tech and Nano-Bionics,University of Science and Technology of Chin1,Hefei 230000,China [2]Key Laboratory of Multifunctional Nanomaterials and Smart Systems,Chinese Academy of Sciences(CAS),Suzhou 215123,China [3]Key Lab of Nanodevices and Applications,Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences,Suzhou 215123,China [4]Division of Nanomaterials,Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences,Nanchang 330200,China [5]State Key Laboratory of Infrared Physics,Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200083,China

出　　处：《eScience》2022年第6期632-638,共7页电化学与能源科学（英文）

基　　金：National Key Research and Development Program of China(2020YFB1505703);This work is supported by the National Natural Science Foundation of China(52172299,22175198,51972331);Z.G.Z would like to acknowledge the support from the External Cooperation Program of the Chinese Academy of Sciences(121E32KYSB20190008);Six Talent Peaks Project of Jiangsu Province(XCL-170).S.C would like to acknowledge the support from the Youth Innovation Promotion Association,CAS(2018356);Outstanding Youth Fund of Jiangxi(20192BCBL23027).

摘　　要：Fabry-Perot(F-P)nanocavity-type electrochromic devices with multicolor tunability have attracted significant interest in the past two years for their potential uses in a wide variety of applications,such as electronic display,military camouflage,and dynamic decoration.However,challenges such as insufficient brightness,lengthy switching times,and poor cycling stability have yet to be overcome.Herein,we demonstrate electrochromic electrodes based on ITO/Cu as both the current collector and the reflective layer,with WO_(3 )as the electrochromic material,forming a unique three-layered structure.The constituted WO_(3 )/ITO/Cu films present a high brightness value of about 84%before coloration,and a decent brightness value of 48%after coloration at−0.8V.Moreover,a fast switching time between different coloration states(tc=2.2s;tb=1s)is recorded,attributed to the extremely low sheet resistivity of the ITO/Cu current collector.The films also reveal excellent electrochemical cycling stability across 2000 cycles.

关 键 词：Electrochromic High brightness Tungsten trioxide COPPER 

分 类 号：TN873[电子电信—信息与通信工程]