New liquid crystal systems for photochemical energy storage

Osama K. Abou-Zied

doi:10.1117/12.2670193

8 June 2023 New liquid crystal systems for photochemical energy storage

Osama K. Abou-Zied

Proceedings Volume PC12584, Smart Materials for Opto-Electronic Applications; PC125840C (2023) https://doi.org/10.1117/12.2670193
Event: SPIE Optics + Optoelectronics, 2023, Prague, Czech Republic

Abstract

Light-responsive materials capable of undergoing photo-induced molecular transformation are excellent candidates for energy storage. Herein we report a promising new liquid crystalline terpolymer (contains p-methoxyazobenzene) that is capable of trapping the absorbed photon energy in the smectic phase (75 °C) upon exposure to UV light through trans  cis isomerization and molecular aggregation. In the dark, the recovery process shows an increase in absorbance of the trans isomer at room temperature (glass transition) beyond the equilibrium level that can be maintained at the same level (monitored for 20 days). The stored energy was released by changing to the smectic phase, showing the suitability of this system as a solar-thermal fuel.

Conference Presentation

Citation Download Citation

Osama K. Abou-Zied "New liquid crystal systems for photochemical energy storage", Proc. SPIE PC12584, Smart Materials for Opto-Electronic Applications, PC125840C (8 June 2023); https://doi.org/10.1117/12.2670193

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