Tag: Solar

Hemispherical solar cells produce more electricity. Solar modules installed on facades or outside windows also allow for increased energy generation, albeit their weight is a drawback. The gossamer thin, translucent perovskite solar cells made by a Singapore research team, however, could generate hundreds of megawatt hours per year on large buildings. The fineness of the parts was achieved through...

A membrane filters wastewater and runs on its own electricity. Inspiration, perhaps, for a US research team, which has created a solar panel from black metal to make seawater drinkable without pre-treatment. Key here: special surface treatment of the metal. Tiny laser-cut grooves make the metal permeable to water without affecting its ability to absorb sunlight. Through the capillary...

Onions protect solar modules, securing their long-term output. Hemispherical solar cells could deliver even more electricity. Now a Norwegian startup’s system is enabling homeowners to harness their solar energy more efficiently and make provisions for the winter months. First, a fuel cell converts the solar energy into hydrogen. Then, using the firm’s patented technology, it is processed into a...

Glasses help minimise epileptic fits or relieve the symptoms of depression with light. For motorcyclists, however, too much light can be a serious hazard. Enter an Italian startup and its new visor which automatically adjusts to light conditions using a layer of liquid crystals. Their arrangement is determined by a small solar panel in the helmet, and changes depending...

Batteries made from paper can be an environmentally-friendly source of electricity. Now, a Swiss startup is aiming to replace batteries used in small devices entirely (a process that’s already begun in Sweden). Energy will come through perovskite solar cells previously developed in a research lab. Their properties and size can be tailored to customer requirements and device design. Manufacture...

Aluminium can be turned into rare metals. Silver is used as an electrode material in solar cells, accounting for 10-15% of manufacturing costs. Yet precious metal resources are limited. Inspired by the increased use of photovoltaics, a British/Swiss startup has developed patented electrodes from graphene. Highly efficient, their chemical stability is also comparable to that of precious metals. And...

Octopus can help give UV protection. Solar cells are also protected from UV rays and coated with an oil-based film for improved functionality. Now, a Finnish-led research team has hit upon an organic alternative. The team used dye from red-onion peel to coat a film made from nano-fine cellulose fibres and the new protective layer was more effective than...

A flexible bracelet harvests electricity through body heat. Now, a Swedish-based startup has developed flexible, customisable solar cells that convert indoor and outdoor light into electricity. Enabling e-book readers, headphones and keyboards to run without batteries. The solar cells comprise a titanium dioxide layer coated with light-absorbing dye and the maximum intake under different lighting conditions is defined by...