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2 August 2021 Smart windows with nanoporous structures templated by liquid crystals
Ivan I. Smalyukh
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Proceedings Volume 11807, Liquid Crystals XXV; 118070P (2021) https://doi.org/10.1117/12.2596218
Event: SPIE Organic Photonics + Electronics, 2021, San Diego, California, United States
Abstract
Heating, ventilation, and air conditioning of buildings account for about 15% of the global energy consumption, but about 20% of this building-related energy is lost because of inefficient windows. Greenhouse emissions associated with producing and using this energy contribute substantially to climate change. Is there a solution to this challenging problem? Starting from the physical principles associated with energy loss through windows, I will describe our development of visibly transparent, infrared-reflecting, thermally super-insulating materials that may replace or retrofit the inefficient windowpanes of residential and commercial buildings. I will discuss how production of such unusual transparent porous materials is enabled by mesoscale templating of orderly porous structures using lyotropic surfactant-based liquid crystals. I will discuss how these metamaterials can boos energy efficiency of windows and buildings in general.
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Ivan I. Smalyukh "Smart windows with nanoporous structures templated by liquid crystals", Proc. SPIE 11807, Liquid Crystals XXV, 118070P (2 August 2021); https://doi.org/10.1117/12.2596218
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KEYWORDS
Liquid crystals
Buildings
Climate change
Energy efficiency
Infrared materials
Infrared radiation
Metamaterials
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