Visible and near-infrared light activated azo dyes
01 natural sciences
0104 chemical sciences
DOI:
10.1016/j.cclet.2021.03.020
Publication Date:
2021-03-10T00:10:09Z
AUTHORS (6)
ABSTRACT
Abstract The photoisomerization properties of azo derivatives have been widely used in the fields of materials and biology. One serious restriction to the development of functional azo-based materials is the necessity to trigger switching by UV light, which damage the corresponding surfaces and penetrate only partially through the matter. Therefore, developing the visible and near-infrared light activated azo switches can solve this problem. This review provides a summary of molecular design strategies for driving the isomerization of azo derivatives with visible light and near-infrared light: (1) smart design directly excited by visible light, (2) the addition of upconversion nanoparticles, (3) the employment of two-photon absorption, (4) indirect excitation in combination with metal sensitizer.
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