Smart Windows Are Getting Even Smarter
Smart windows are undergoing a revolutionary transformation with the development of adaptive mechano-optical systems. These systems can adjust themselves to different wavelengths of light, from visible to microwave, and are becoming increasingly important for various electromagnetic applications.
Inspired by the skin of cephalopods, researchers have created a remarkable adaptive multispectral mechano-optical system. It consists of notable films made of acrylic material and silver nanowires. By contracting and stretching mechanically, these films can change their surface texture, forming wrinkles or cracks.
What makes this system groundbreaking is its ability to control the transmission, reflection, and scattering of light across a wide range of wavelengths, from visible to infrared. It can even alter the conductive network in the silver nanowire film, influencing its microwave characteristics. This system can switch between transparency and opacity, allowing light to pass through or block it, not only in the visible range but also in the infrared and microwave ranges. It can adjust continuously and operates in a broad spectral window, making it useful for various applications. Additionally, it is recyclable for multiple cycles and has a rapid response time of less than 1 second.
One exciting application of this adaptive mechano-optical system is the development of smart windows. These windows can dynamically adjust their transparency based on external conditions like light intensity or temperature. Doing so improves energy efficiency by controlling the amount of heat and light that enters a building. This feature reduces the need for excessive energy consumption for climate control, leading to energy savings.
The development of this adaptive multispectral mechano-optical system opens up new possibilities for intelligent windows. Its ability to switch between transparency and opacity, its wide range of spectral control, and its quick response time can revolutionize window design and usage. This advancement will contribute to improved energy efficiency and enhanced comfort in buildings.
