invisible Archive

Invisibility cloaks boosts solar energy conversion efficiency

Researchers demonstrated a performance improvement of state-of-the-art silicon solar cells by cloaking their metal contact fingers. The cloaking free-form surfaces are fabricated on silicon heterojunction solar cells using direct laser writing of polymers and subsequent soft imprinting. Cloaking performance is …

Antiproton attraction measured to be similar to protons

Researchers revealed evidence this week that the attractive force between antiprotons is similar to that between protons — and measured it. Specifically, the team measured two important parameters: the scattering length and the effective range of interaction between two antiprotons. …