(Angew. Chem. Int. Ed.) An Artificial Light-Harvesting System with Controllable Efficiency Enabled by an Annulene-Based Anisotropic Fluid
作者：Yu, Z.; Bisoyi, H. K.; Chen, X.*; Nie, Z.; Wang, M.; Yang, H.*; Li, Q.*
關鍵字：discotic liquid crystal
論文來源：期刊
具體來源：Angewandte Chemie International Edition, 2022, 61, e202200466.
發表時間：2022年
The development of controllable artificial
light-harvesting systems based on liquid crystal (LC)
materials, i.e., anisotropic fluids, remains a challenge.
Herein, an annulene-based discotic LC compound 6
with a saddle-shaped cyclooctatetrathiophene core has
been synthesized to construct a tunable light-harvesting
platform. The LC material shows a typical aggregationinduced
emission, which can act as a suitable lightharvesting
donor. By loading Nile red (NiR) as an
acceptor, an artificial light-harvesting system is achieved.
Relying on the thermal-responsive self-assembling ability
of 6 with variable molecular order, the efficiency of
such 6-NiR system can be controlled by temperature.
This light-harvesting system works sensitively at a high
donor/acceptor ratio as 1000: 1, and exhibits a high
antenna effect (39.1) at a 100 :1 donor/acceptor ratio.
This thermochromic artificial light-harvesting LC system
could find potential applications in smart devices
employing soft materials.