Researchers from China's Nanjing Tech University have developed a smart solar window technology, based on a photovoltachromic device that is able to achieve high transmittance and be self-adaptable to control indoor brightness and temperature.
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What is a glass integrated perovskite solar cell?
Our goal is to achieve glass integrated Perovskite solar cells, which are designed to directly form the photovoltaic layer on the glass substrate, enabling the creation of "power-generating glass" building materials that can be used in various architectural structures. Panasonic HD aims to utilize this technology in a wide range of buildings.
Panasonic aims to create glass integrated with Perovskite solar cells. The design directly embeds the photovoltaic layer onto the substrate, creating power-generating glass. In this way, whenever buildings use these photovoltaic windows with solar cells, they directly harness the sun's power all over the architecture and not just on the roof.
Are thermochromic perovskite solar cells a good candidate for smart window applications?
The TPSWs show the potential to realize solar energy harvesting and power generation in the hot state because of the outstanding photovoltaic ability of perovskite phase, as shown in Fig. 5 a . At present, various types of thermochromic perovskite solar cells have emerged as promising candidates for smart window applications.
The researchers in China have now taken a further step by developing a solar window based on aphotovoltachromic device that combines a full-transparent perovskite photovoltaic device and electrochromic components based on ion-gel in a vertical tandem architecture without any intermediated electrode.
Panasonic has started its long-term implementation and demonstration of the photovoltaic glass with Perovskite solar cells, which includes technical tests that will last more than a year. They will be installed in the newly constructed model house in the Fujisawa Sustainable Smart Town in Kanagawa Prefecture, Japan.
The demonstration of these high conversion efficiencies, as well as their seamless integration as small power sources in a variety of devices and products, can produce perovskite solar cells on ultra-thin glass, a key enabling technology for indoor electronics of the future.