A single-molecule multicolor electrochromic device generated through medium engineering  

作　　者：Yu-Mo Zhang Xiaojun Wang Weiran Zhang Wen Li Xiaofeng Fang Bing Yang Minjie Li Sean Xiao-An Zhang 

机构地区：[1]State Key Laboratory of Supramolecular Structure and Materials,College of Chemistry,Jilin University,Changchun 130012,China [2]Department of Chemistry and Pharmacy,Zhuhai College of Jilin University,Zhuhai 519041,China

出　　处：《Light(Science & Applications)》2015年第1期504-512,共9页光（科学与应用)（英文版）

基　　金：This study was supported by the National Science Foundation of China(Grant No.51373068);program for Chang Jiang Scholars and Innovative Research Team in University(No.IRT101713018);The authors also acknowledge E.K.Wang,Y Fang and H Cheng for their assistance.

摘　　要：Multicolor organic electrochromic materials are important for the generation of full-color devices.However,achieving multiple colors using a single-molecule material has proved challenging.In this study,a multicolor electrochromic prototype device is generated by integrating medium engineering/in situ‘electro base’/laminated electrode technologies with the simple flying fish-shaped methyl ketone TM1.This multicolor electrochromic(green,blue and magenta)device is durable and has a high coloration efficiency(350 cm^(2) C^(-1)),a fast switching time(50 ms)and superior reversibility.This study is a successful attempt to integrate solvatochromism and basochromism in an electronic display.This integration not only introduces a new avenue for color tuning,in addition to the structural design of the colorant,but will also inspire further developments in the tuning of many other properties by this medium engineering approach,such as conductance and the redox property,and thereby accelerate versatile applications in data recording,ultrathin flexible displays,and optical communication and sensing.

关 键 词：electrochromic materials laminated electrodes MICROENVIRONMENT multicolor devices solvatochromic materials 

分 类 号：O62[理学—有机化学]