Researchers from the Technical University of Madrid (Universidad Politécnica de Madrid, UPM) in Spain have developed an innovative energy storage system which is able to store up to ten times more than the existing solutions using materials abundant in nature.
A Korean research team has created semi-transparent perovskite solar cells that demonstrate high-power conversion efficiency and transmit visible light while blocking infrared light, making them great candidates for solar windows.
Researchers at École polytechnique fédérale de Lausanne (EPFL), Michael Graetzel and his team, found that, by briefly reducing the pressure while fabricating perovskite crystals, they were able to achieve the highest performance ever measured for larger-size perovskite solar cells, reaching over 20% efficiency and matching the performance of conventional thin-film solar cells of similar sizes. Their results are published in Science.
The promise of ‘zero-energy’ buildings – which generate as much power as they consume – has been held back by two hurdles: the cost of the thin-film solar cells (used in façades, roofs and windows), and the fact they’re made from scarce, and highly toxic, materials.
That’s about to change: a team from the University of New South Wales (UNSW) Australia, led by Dr Xiaojing Hao of the Australian Centre for Advanced Photovoltaics at the UNSW School of Photovoltaic and Renewable Energy Engineering, have achieved the world’s highest efficiency rating for a full-sized thin-film solar cell using a competing thin-film technology, known as CZTS.