[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; Hua Jiang

doi:10.1038/s41467-023-38405-9

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

Nat Commun. 2023 May 12;14(1):2752. doi: 10.1038/s41467-023-38405-9.

Authors

Zhe Lian¹, Jing He¹, Lin Liu¹, Yanqing Fan¹, Xuebo Chen¹, Hua Jiang²

Affiliations

¹ College of Chemistry, Beijing Normal University, Beijing, 100875, PR China.
² College of Chemistry, Beijing Normal University, Beijing, 100875, PR China. jiangh@bnu.edu.cn.

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.

Abstract

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