Abstract
Dynamic and independent modulation of invisible solar heat in the near-infrared (NIR) part of the solar spectrum is essential for energy saving benefits without compromising natural daylight transmission. In article number 2201513, Souvik Ghosh and Ivan Smalyukh demonstrate the electric switching of NIR-selective transmission at sub-second time scale while maintaining high visible transparency. This is achieved by dispersing anisotropic silver nanocolloids with NIR plasmonic properties in a nematic liquid crystal host medium and controlling their orientation with respect to the incident irradiation. The ensuing nematic plasmonic metafluid works on low voltage, offers excellent color neutrality and low haze, and is compatible with flexible substrates, therefore has great potential for smart glass-related applications. [Artwork by Bohdan Senyuk and Souvik Ghosh.]
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