Photochromism based on reversible proton transfer
Photochromism based on reversible proton transfer
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DOI：
10.1016/j.jphotochem.2014.12.008
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发表时间：
2015-03-01
影响因子：
4.3
通讯作者：
Liao, Yi
中科院分区：
文献类型：
--
作者：
Chen, Hongbin;Liao, Yi
研究了亚稳态光酸与酸性变色染料之间基于可逆质子转移的光致变色。亚稳态光酸在中等光照下可逆地产生大的质子浓度，质子化酸性变色染料并引起颜色变化。这一机制不同于传统的基于光致结构变化的光致变色材料。通过选择不同的酸性变色染料和光酸，可以控制颜色的变化和刺激波长。在溶液和聚合物基质中，各种颜色在阳光或不同波长的可见光下都发生了可逆的变化。(C)2014爱思唯尔B.V.保留所有权利。
Photochromism based on reversible proton transfer between metastable-state photoacids and acidochromic dyes is studied. Metastable-state photoacids reversibly produce a large proton concentration under moderate irradiation, protonate the acidochromic dyes and induce color change. This mechanism is different from that of conventional photochromic materials based on photoinduced structural change. The color change and the stimulating wavelength can be controlled by choosing different acidochromic dyes and photoacids. Reversible changes of various colors under sunshine or visible lights of different wavelengths were demonstrated in both solutions and polymer matrix. (C) 2014 Elsevier B.V. All rights reserved.