Dynamic patterns based on luminescent materials play an essential role in the digital age. However, it is still challenging to develop highly emissive photofluorochromic materials with dynamic behaviors to store information with multiple characteristics. Here, we report a series of dihydroazulene-based compounds which show typical aggregation-induced emission (AIE) effect. Moreover, the photo-switching ability of the dihydroazulene units, undergoing light-induced ring-opening, enables photofluorochromic properties. The photofluorochromism also shows quantitively described responses to time and temperature via a reverse ring-closing process. Ultimately, a rewritable 4D information system, embedded with a quick response code, dot matrix with microstructures, color matrix of fluorescence, and time/temperature-dependent intensity change, is established with dynamic patterns. This work not only develops a dynamic AIE skeleton with photofluorochromic properties but also provides a new strategy for information encryption and cybernetics.

A Dihydroazulene-Based Photofluorochromic AIE System for Rewritable 4D Information Encryption / Jianyu Zhang, Hanchen Shen, Xinyue Liu, Xueqin Yang, Søren Lindbæk Broman, Haoran Wang, Qiyao Li, Jacky W. Y. Lam, Haoke Zhang, Martina Cacciarini, Mogens Brøndsted Nielsen, Ben Zhong Tang. - In: ANGEWANDTE CHEMIE. - ISSN 1521-3773. - STAMPA. - (In corso di stampa), pp. 1-9. [10.1002/anie.202208460]

A Dihydroazulene-Based Photofluorochromic AIE System for Rewritable 4D Information Encryption

Martina Cacciarini
;
In corso di stampa

Abstract

Dynamic patterns based on luminescent materials play an essential role in the digital age. However, it is still challenging to develop highly emissive photofluorochromic materials with dynamic behaviors to store information with multiple characteristics. Here, we report a series of dihydroazulene-based compounds which show typical aggregation-induced emission (AIE) effect. Moreover, the photo-switching ability of the dihydroazulene units, undergoing light-induced ring-opening, enables photofluorochromic properties. The photofluorochromism also shows quantitively described responses to time and temperature via a reverse ring-closing process. Ultimately, a rewritable 4D information system, embedded with a quick response code, dot matrix with microstructures, color matrix of fluorescence, and time/temperature-dependent intensity change, is established with dynamic patterns. This work not only develops a dynamic AIE skeleton with photofluorochromic properties but also provides a new strategy for information encryption and cybernetics.
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Jianyu Zhang, Hanchen Shen, Xinyue Liu, Xueqin Yang, Søren Lindbæk Broman, Haoran Wang, Qiyao Li, Jacky W. Y. Lam, Haoke Zhang, Martina Cacciarini, Mogens Brøndsted Nielsen, Ben Zhong Tang
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2158/1278641
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