Category Archives: Science News

Scratching the surface of perovskites: Defects in next generation solar devices

Versatile compounds called perovskites are valued for their application in next generation solar energy technologies. Despite their efficiency and relative cheapness, perovskite devices have yet to be perfected; they often contain atomic-level structural defects. Professor Yabing Qi and his team in the Energy Materials and Surface Sciences Unit at OIST, in collaboration with researchers at the University of Pittsburgh, USA,

Read more

‘Messy’ production of perovskite material increases solar cell efficiency

Scientists at the University of Cambridge studying perovskite materials for next-generation solar cells and flexible LEDs have discovered that they can be more efficient when their chemical compositions are less ordered, vastly simplifying production processes and lowering cost. The surprising findings, published in Nature Photonics, are the result of a collaborative project, led by Dr Felix Deschler and Dr Sam Stranks.

Read more

Researchers to demonstrate first rechargeable lithium-carbon dioxide battery prototype

Lithium-carbon dioxide batteries are attractive energy storage systems because they have a specific energy density that is more than seven times greater than commonly used lithium-ion batteries. However, until now, scientists have not been able to develop a fully rechargeable prototype, despite their potential to store more energy. Researchers at the University of Illinois at Chicago are the first to

Read more

Physicists to Shine Light on Properties of Potential Solar Cell Material

Research led by University of Texas at Dallas physicists has altered the understanding of the fundamental properties of perovskite crystals, a class of materials with great potential as solar cells and light emitters. Published in July in Nature Communications, the study presents evidence that questions existing models of the behavior of perovskites on the quantum level. “Our enhanced understanding of the physics of

Read more

Solar Cells With New Interfaces: Innovative Two-Dimensional Materials Increase the Efficiency of perovskite solar cell above 20%

Scientists from NUST MISIS (Russia) and University of Rome Tor Vergata found out that a microscopic quantity of two-dimensional titanium carbide called MXene significantly improves the collection of electrical charges in a perovskite solar cell, increasing the final efficiency above 20%. The results of the research were published in Nature Materials. Perovskite thin film solar cell is a new promising technology of alternative energy sources that is being actively developed worldwide. One

Read more

How much photovoltaics (PV) would be needed to power the world sustainably?

The International Energy Agency has dubbed increased global cooling demand as one of the most critical blind spots in today’s energy debate. A new study entitled – Meeting Increased Global Cooling Demand with Photovoltaics during the 21st Century – yields critical new insight to a fundamental question: How much photovoltaics (PV) would be needed to power the world sustainably? The

Read more

HZB to hit world record for tandem perovskite-CIGS solar cell: 23.26% efficiency

A team headed by Prof. Steve Albrecht from the HZB will present a new world-record tandem solar cell at EU PVSEC, the world’s largest international photovoltaic and solar energy conference and exhibition, in Marseille, France on September 11, 2019. This tandem solar cell combines the semiconducting materials perovskite and CIGS and achieves a certified efficiency of 23.26 per cent. One

Read more
« Older Entries