articles

Perovskite solar cells are an alternative to conventional silicon solar cells, and are poised to overtake the market with their high power-conversion efficiencies (over 22% now) and lower capital expenditure and manufacturing costs. But one of the greatest obstacles on this road is stability: to be commercially viable, perovskite solar cells must also be able to maintain their efficiency over time, meaning that they must not degrade significantly over 25 years of service.

Got a sore throat? The doctor may write a quick prescription for penicillin or amoxicillin, and with the stroke of a pen, help diminish public health and your own future health by helping bacteria evolve resistance to antibiotics.

An invasive Australian tree is now posing a serious threat to a global diversity ‘hotspot’ according to new collaborative research between Landcare Research in New Zealand, the Universities of Cambridge (UK) Denver (US) and Bangor University (UK).

It is well understood how flowers use complex color patterns and smells to attract pollinating bees. But now, scientists have discovered that flowers also emit heat to advertise themselves to insects — creating temperature arrays that mimic the color designs of petals.

On average, heat spots were 4 to 5 degrees Celsius warmer than the rest of the flower, but could be as much as 11 degrees warmer.

Humans may be the dominant cause of global temperature rise, but they may also be a crucial factor in helping to reduce it, according to a new study that for the first time builds a novel model to measure the effects of behavior on climate.