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Light drive reversible color switching for rewritable media and encoding
Materials & Design ( IF 8.4 ) Pub Date : 2021-09-28 , DOI: 10.1016/j.matdes.2021.110132
Qiaoli Ren 1 , Gerile Aodeng 1 , Lu Ga 2 , Jun Ai 1
Affiliation  

Nowadays, photo reversible color switching systems (PCSS) are always limited by some requirements, such as good stability, low toxicity, fast light response, long cycling performance and low production cost, therefore, it is a huge challenge to develop such a system that integrates beneficial features. Herein, a new type of PCSS have been demonstrated, which integrated reducing agent of triethanolamine (TEOA), catalyst of β-FeOOH nanorods and the redox driven color conversion characteristics of redox dyes. The system has the advantages of high switching rate, high reversibility (>10 cycles), wavelength selective response, safety and less light damage, which can be widely used in rewritable paper. As-prepared rewritable paper has high contrast, high resolution, suitable printing time and good reversibility, which is in line with the environmental protection concept of green printing. Rewritable paper is a kind of self-erasable rewritable medium which is highly suitable for printing. Environmental protection film has the advantages of low cost, convenient preparation and recycling. It is expected to replace the traditional writing, printing paper, existing systems and make a big step forward to practical application. Even more surprising, it also can be applied for a data encoding and reading strategy.



中文翻译:

用于可重写媒体和编码的光驱动可逆颜色切换

如今,光可逆颜色切换系统(PCSS)总是受到一些要求的限制,例如稳定性好、毒性低、光响应快、循环性能长和生产成本低,因此,开发这样一种系统是一个巨大的挑战。集成了有益的功能。在此,我们展示了一种新型的 PCSS,它集成了三乙醇胺 (TEOA) 还原剂、β-FeOOH 纳米棒催化剂和氧化还原染料的氧化还原驱动颜色转换特性。该系统具有开关率高、可逆性高(>10次循环)、波长选择性响应、安全、光损伤小等优点,可广泛应用于可擦写纸。所制备的可重写纸具有高对比度、高分辨率、合适的印刷时间和良好的可逆性,符合绿色印刷的环保理念。可擦写纸是一种高度适用于印刷的自擦写可擦写介质。环保膜具有成本低、制备和回收方便等优点。有望取代传统的书写、打印纸、现有系统,向实际应用迈出一大步。更令人惊讶的是,它还可以应用于数据编码和读取策略。现有系统并向实际应用迈出一大步。更令人惊讶的是,它还可以应用于数据编码和读取策略。现有系统并向实际应用迈出一大步。更令人惊讶的是,它还可以应用于数据编码和读取策略。

更新日期:2021-09-29
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