Electrochromic Type E-Paper Using Poly(1H-Thieno[3,4-d]Imidazol-2(3H)-One) Derivatives by a Novel Printing Fabrication Process

Materials

Yoshiro Kondo¹  Hirofumi Tanabe²  Hidetoshi Kudo²  Kirihiro Nakano² 

[1] Kuraray America, Inc., 11500 Bay Area Boulevard, Pasadena, TX 77507, USA;Tsukuba Research Center, Kuraray Co. Ltd., 41 Miyukigaoka, Tsukuba, Ibaraki 305-0841, Japan; E-Mails:

关键词: electronic papers;    conductive polymers;    printable electronics;   

DOI  :  10.3390/ma4122171

来源: mdpi

【 摘 要 】

In this study, we report poly(1H-thieno[3,4-d]imidazol-2(3H)-one) (pTIO) derivatives for an electrochromic (EC) type e-paper and its novel printing fabrication process. pTIO is a kind of conductive polymer (CP) s which are known as one of the EC materials. The electrochromism of pTIO is unique, because its color in doped state is almost transparent (pale gray). A transparent state is required to show a white color in a see-through view of an EC type e-paper. An electrochromism of CP has a good memory effect which is applicable for e-paper. The corresponding monomers of CP are able to be polymerized with an electrochemical method, which be made good use of for the fabrication process of e-paper. pTIO derivatives are copolymerized with other pi-conjugated X unit, which adjusts the color of electrochromism. Finally, we fabricated a segment matrix EC display using pTIO derivatives by ink-jet printing.

【 授权许可】

CC BY   
© 2011 by the authors; licensee MDPI, Basel, Switzerland.