An all-photonic full color RGB system based on molecular photoswitches
An all-photonic full color RGB system based on molecular photoswitches
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DOI：
10.1038/s41467-019-11885-4
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发表时间：
2019-09-05
影响因子：
16.6
通讯作者：
Andreasson, Joakim
中科院分区：
文献类型：
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作者：
Naren, Gaowa;Hsu, Chien-Wei;Andreasson, Joakim
在许多情况下，功能材料的发射颜色的命令变化是一种受欢迎的特性。特别令人感兴趣的是使用光作为外部触发器来诱导颜色变化的系统。在这里，我们报告的三组分鸡尾酒组成的荧光供体分子和两个光致变色受体分子封装在聚合物胶束中，我们表明，所发射的荧光的颜色可以连续变化从蓝色到绿色和从蓝色到红色后，选择性光诱导异构化的光致变色受体的荧光形式。有趣的是，两种受体的异构化程度不同，允许在红绿蓝（RGB）颜色系统内产生所有发射颜色。该功能依赖于分别在蓝色发射供体与绿色和红色发射受体之间的正交控制的FRET反应。
On-command changes in the emission color of functional materials is a sought-after property in many contexts. Of particular interest are systems using light as the external trigger to induce the color changes. Here we report on a tri-component cocktail consisting of a fluorescent donor molecule and two photochromic acceptor molecules encapsulated in polymer micelles and we show that the color of the emitted fluorescence can be continuously changed from blue-to-green and from blue-to-red upon selective light-induced isomerization of the photochromic acceptors to the fluorescent forms. Interestingly, isomerization of both acceptors to different degrees allows for the generation of all emission colors within the redgreen-blue (RGB) color system. The function relies on orthogonally controlled FRET reactions between the blue emitting donor and the green and red emitting acceptors, respectively.