[2,2] Paracyclophanes-based double helicates for constructing artificial light-harvesting systems and white LED device

Zhe Lian, Jing He, Lin Liu, Yanqing Fan, Xuebo Chen and Hua Jiang ()
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Zhe Lian: Beijing Normal University
Jing He: Beijing Normal University
Lin Liu: Beijing Normal University
Yanqing Fan: Beijing Normal University
Xuebo Chen: Beijing Normal University
Hua Jiang: Beijing Normal University

Nature Communications, 2023, vol. 14, issue 1, 1-12

Abstract: Abstract The construction of efficient artificial light-harvesting systems (ALHSs) is of vital importance in utilizing solar energy. Herein, we report the non-covalent syntheses of double helicates PCP-TPy1/2 and Rp,Rp-PCP-TPy1/2 by metal-coordination interaction and their applications in ALHSs and white light-emitting diode (LED) device. All double helicates exhibit significant aggregation-induced emission in tetrahydrofuran/water (1:9, v/v) solvent. The aggregated double helicates can be used to construct one-step or sequential ALHSs with fluorescent dyes Eosin Y (EsY) and Nile red (NiR) with the energy transfer efficiency up to 89.3%. Impressively, the PMMA film of PCP-TPy1 shows white-light emission when doped 0.075% NiR, the solid of double helicates (Rp,Rp-) PCP-TPy2 can be used as the additive of a blue LED bulb to achieve white-light emission. In this work, we provided a general method for the preparation of novel double helicates and explored their applications in ALHSs and fluorescent materials, which will promote future construction and application of helicates as emissive devices.

Date: 2023
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DOI: 10.1038/s41467-023-38405-9

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