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

• Published in: Nature communications Vol. 14; no. 1; p. 2752
• Main Authors: Lian, Zhe, He, Jing, Liu, Lin, Fan, Yanqing, Chen, Xuebo, Jiang, Hua
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 12-05-2023; Nature Publishing Group; Nature Portfolio
• Subjects: 119/118; 140/131; 140/58; 639/301/923/3931; 639/638/541/960; 639/638/541/966; Energy transfer; Fluorescent dyes; Fluorescent indicators; Humanities and Social Sciences; Light emission; Light emitting diodes; Light sources; multidisciplinary; Polymethylmethacrylate; Science; Science (multidisciplinary); Solar energy; Tetrahydrofuran; White light
• ISSN: 2041-1723; 2041-1723
• DOI: 10.1038/s41467-023-38405-9

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
R
p
,
R
p-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 (
R
p
,
R
p-
)
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.
The construction of efficient artificial lightharvesting (ALH) systems is of vital importance in utilizing solar energy. Here, the authors report the non-covalent syntheses of double helicates by metalcoordination interaction and their applications in ALHSs and white LED device