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首页> 外文期刊>Smart Materials & Structures >A new repeatable, optical writing and electrical erasing device based on photochromism and electrochromism of viologen
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A new repeatable, optical writing and electrical erasing device based on photochromism and electrochromism of viologen

机译：一种基于紫精的光致变色和电致变色的可重复的新型光学写入和电擦除装置

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摘要

New optical writing and electrical erasing devices have been successfully fabricated that exploit the photochromism and electrochromism of viologen. In a preliminary study, both the structures of viologen and device were investigated in detail by UV-vis spectra in order to confirm their effects on the optical writing and electrical erasing performances of corresponding devices. For sandwiched, single and complementary devices based on benzyl viologen (BV ~(2+)), only optical writing can be performed, not electrical erasing operations, which indicated these devices cannot realize optical information rewriting. For single and complementary devices based on styrene-functional viologen (V BV ~(2+)) and acrylic-functional viologen (ACV ~(2+)), optical writing and electrical erasing operations can be reversibly performed and optical information rewriting realized. It is clear that single devices based on V BV ~(2+) and ACV ~(2+) possess better performance accompanied with contrast without significant degradation and bleaching times and without significant deterioration over 10 repeated writing/erasing cycles. Furthermore, we put forward possible mechanisms for sandwiched, single and complementary devices based on V BV ~(2+) and ACV ~(2+) for the optical writing and electrical erasing operations. This study provides a new strategy to design optical writing and electrical erasing devices to realize optical information rewriting.
机译：已经成功地制造出利用紫精的光致变色和电致变色的新的光学写入和电擦除装置。在初步研究中，通过紫外可见光谱详细研究了紫精和器件的结构，以确认它们对相应器件的光学写入和电擦除性能的影响。对于基于苄基紫精（BV〜（2+））的三明治式，单个和互补设备，只能执行光学写入，而不能执行电擦除操作，这表明这些设备无法实现光学信息重写。对于基于苯乙烯官能的紫精（V BV〜（2+））和丙烯酸官能的紫精（ACV〜（2+））的单个和互补设备，可以可逆地执行光学写入和电擦除操作，并实现光学信息重写。显然，基于V BV〜（2+）和ACV〜（2+）的单个设备具有更好的性能，同时具有对比度，并且没有明显的劣化和漂白时间，并且在10个重复的写入/擦除周期中也没有明显的劣化。此外，我们提出了基于V BV〜（2+）和ACV〜（2+）的夹层，单个和互补器件的可能机制，用于光学写入和电擦除操作。这项研究提供了一种设计光写入和电擦除设备以实现光信息重写的新策略。

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