A new absorption/fluorescence dual-mode hydrochromic dye for water-jet printing and anti-counterfeiting applications. Issue 8 (29th January 2020)

• Record Type: Journal Article
• Authors: Ju, Le; Gao, Wenbin; Zhang, Jinyan; Qin, Tianyou; Du, Zhen; Sheng, Lan; Zhang, Sean Xiao-An
• Is Part Of: Journal of materials chemistry. Volume 8:Issue 8(2020)
• Page Start: 2806
• Page End: 2811
• Publication Date: 2020-01-29
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c9tc06522a
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : A new absorption/fluorescence dual-mode hydrochromic dye and its latent applications in a water-jet rewritable paper and encrypting information have been developed. Abstract : Most hydrochromic materials only exhibit either absorption or fluorescence changes, which greatly restrict their applications. Herein, we reported a new hydrochromic dye capable of a absorption/fluorescence dual-mode change via transforming rhodamine B from its structure of lactone to pyrroline. Taking advantage of its excellent physico-chemical properties, this hydrochromic dye has been applied in water-jet printing, which has fast coloration speed, good reversibility, high resolution, and absorption/fluorescence two-mode display. Based on its fluorescence property, its application in information encryption has been illustrated. This dual-mode hydrochromic dye shows great potential in multifunctional integrated devices.