2D materials combine, becoming polarized and giving rise to photovoltaic effect

2D materials combine, becoming polarized and giving rise to photovoltaic effect

Tungsten selenide (WSe2) and black phosphorus (BP) do not exhibit polarized electronic behavior until combined such that their structures overlap. Credit: ©2021 Ideue et al. For the first time, researchers have discovered a way to obtain polarity and photovoltaic behavior from certain nonphotovoltaic, atomically flat (2D) materials. The key lies in the special way in…

Increasing applied pesticide toxicity threatens bees and marine life

Increasing applied pesticide toxicity threatens bees and marine life

Insects and crustaceans in surface waters are among those exposed to increasing total applied pesticide toxicity. Credit: Renja Bereswill A group of scientists from the University of Koblenz-Landau, Germany, has shown that for plants and insects, pesticide toxicity in agriculture has substantially increased between 2004 and 2016. In a paper published in the current issue…