{"id":375425,"date":"2022-05-23T10:00:00","date_gmt":"2022-05-23T08:00:00","guid":{"rendered":"https:\/\/innovationorigins.com\/?post_type=selected&p=375425"},"modified":"2022-05-23T10:00:00","modified_gmt":"2022-05-23T08:00:00","slug":"invisible-and-washable-solar-cell-technology-is-here","status":"publish","type":"selected","link":"https:\/\/ioplus.nl\/archive\/en\/selected\/invisible-and-washable-solar-cell-technology-is-here\/","title":{"rendered":"Invisible and washable solar cell technology is here"},"content":{"rendered":"\n

During the three-year Sun-powered Textiles project, researchers at Aalto University\u2019s departments of physics and design developed a method of adhering solar cells to textiles in a way that makes them resistant to machine-washing and, at the same time, makes them less of an aesthetic problem. The researchers also took measures to make the solar cell-infused textiles recyclable, writes the Aalto University in a press release<\/a>.<\/p>\n\n\n\n

The machine-washability of commercially available solar cells hasn\u2019t been studied previously to this extent. \u201dWe hypothesized that the solar cell structure might break down in the wash as the cells weren\u2019t designed to be machine-washable. The washing is a stressful process where the textiles and cells are subject to pressure and collisions, especially during spinning,\u201d says Elina Il\u00e9n, project specialist at the Aalto University Department of Design.<\/p>\n\n\n\n

Cells are now washable<\/h3>\n\n\n\n

The researchers laminated a solar cell component between textiles in a water-tight polyurethane film to make the component machine-washable. The textiles containing the solar cell component were then washed dozens of times in 40 degrees Celsius. Physics researcher Farid Elsehrawy then measured the output of the solar cells after each round in the washing machine.<\/p>\n\n\n\n

Five of the eight samples retained their efficiency, and three lost about 20 percent of their power. None of the cells or the textiles were damaged during the process.<\/p>\n\n\n\n

\u201dNow that the solar cell laminated between textiles has been proved to be machine-washable, we have to protect the rest of the components. Our idea is that all of the electric components of the smart textile could be in the same container with the solar cell. That would give us a machine-washable electronic device that\u2019s embedded in textiles and never needs to have its its battery charged or replaced,\u201d says Janne Halme, university lecturer at the Department of Applied Physics.<\/p>\n\n\n\n

Lasting power and efficient recycling<\/h3>\n\n\n\n

The commercial solar cells used in the study comprised of a single crystal and were made of silicon. They can detect light that is invisible to the naked eye, which is what most of sunlight actually is. Infrared is an example of such invisible light.<\/p>\n\n\n\n

Hiding the textile eats up some of the solar cell\u2019s power but improves its durability, as it\u2019s better protected from the outside world.<\/p>\n\n\n\n

\u201dA cell on the surface also dominates the look of the clothing, turning it into a robot-like piece of armour. A cell on the inside makes the product much more visually palatable and affords the opportunity to visually design the product according to the user’s wants and needs,\u201d Il\u00e9n says.<\/p>\n\n\n

<\/a>
<\/div><\/div>
Capture, store, and use solar energy whenever you need it<\/div>
Solar energy has always been regarded as one of the best alternatives to fossil fuels. <\/div><\/div><\/div>\n\n\n

Humidity gauges and self-adjusting curtains<\/h3>\n\n\n\n

The amount of energy the cells receive depends on their size, quantity and location. The amount of energy that\u2019s needed is mandated by what the use-application is. A crucial aspect is how frequently the application sends data. The most energy-hungry functions include sending information, doing calculations, and projecting on screens. That is why solar cells hidden in textiles won\u2019t be enough to charge a smartphone or a smartwatch but are suitable for things like measuring temperature and humidity.<\/p>\n\n\n\n

The research team thinks that work clothing is the most potential application for solar cell textiles right now. They are thicker than regular clothes, so the cells have limited impact on the clothing\u2019s look and feel.<\/p>\n\n\n\n

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