4.7 Article

Regulation of light-harvesting antenna based on silver ion-enhanced emission of dye-doped coordination polymer nanoparticles

Journal

JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 578, Issue -, Pages 254-261

Publisher

ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2020.05.083

Keywords

Light-harvesting; Antenna effect; Silver ion; Coordination polymer nanoparticle; Fluorescence enhancement

Funding

  1. National Natural Science Foundation of China [21673223, 21977091, 21533008, 21871249, 21820102009]

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The design and construction of artificial light-harvesting systems for solar energy conversion to chemical energy has been an active research field. A variety of molecules and materials have been used to mimic the function of the light-harvesting antenna. However, the improvement or regulation of the antenna effect of the existing artificial light-harvesting systems is less explored. Coordination polymers have aroused extensive concern due to their applications in light-harvesting and energy conversion. Herein, it is found that silver ion can dramatically enhance the emission of dye encapsulated in the coordination polymer nanoparticles (CPNs). The mechanism of Ag+-induced fluorescence enhancement is elucidated. Taking advantage of the effect of Ag+ ions, the regulation of CPN-based light-harvesting system by Ag+ is achieved for the first time. The antenna effect could be up to 2.3 times the original value by adding Ag+ ions. The present work provides a new approach to regulate the antenna effect of the light-harvesting system with the advantages of convenience, rapidity, low cost, and flexibility. (C) 2020 Elsevier Inc. All rights reserved.

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