Thermal Chiroptical Switch Based on an Ultrahigh Temperature-Initiated Macrocycle Gel Platform.

Macromol Rapid Commun

School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China.

Published: October 2024

AI Article Synopsis

  • Responsive chiral optical materials are important for applications in sensing, displays, and optical devices, especially those that can adapt to extreme environments.
  • A new organogel design has been developed that serves as a thermal chiroptical switch, functioning at temperatures above 100 °C.
  • This system utilizes a specific combination of materials for a reversible solution-to-gel transition, enabling controlled circularly polarized luminescence and the creation of a high-temperature switch.

Article Abstract

Responsive chiral optical materials have gained considerable interests from the fields of sensing, display, and optical devices. Materials that are capable of changing chiral optics under harsh conditions such as strong basic/acidic or ultrahigh temperature provides thoughts for the design of materials working at special environments, which however, are still underdeveloped. Here, a proof-of-concept design of organogel is reported that acts as matrices for thermal chiroptical switch with critical working temperature above 100 °C. The reversible solution-to-gel transition of the specific β-cyclodextrin/dimethyl formide/LiCl system is initialized at about 130 °C, when the luminophores with aggregation-induced-emission property shall be lighted up with transferred chirality from inherent chiral β-cyclodextrin. It allows for the controlled emergence of circularly polarized luminescence. This delicate design enables successful fabrication of ultrahigh temperature thermal chiroptical switch.

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Source
http://dx.doi.org/10.1002/marc.202400316DOI Listing

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