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…

Serbia cracks down on anti-vaccination activists

Serbia cracks down on anti-vaccination activists

BELGRADE, Serbia (AP) — Serbian police brought in a well-known Serbian doctor and other vocal anti-vaccination activists for questioning Thursday, saying they are jeopardizing the Balkan country’s successful coronavirus inoculation drive.Serbian state TV said psychiatrist Jovana Stojkovic, a leading figure in the country’s anti-vaccination movement, was taken to a police station in Belgrade on accusations…