Ultrathin (thickness less than 10 μm) and ultralight flexible perovskite solar cells (FPSCs) have attracted extensive research enthusiasm as power sources for specific potential lightweight applications, such drones, blimps, weather balloons avionics. Currently, there is still a certain gap between the conversion efficiency (PCE) of ultrathin FPSCs common FPSCs. This study demonstrates on 3-μm-...

Many new physics scenarios contain ultralight scalars, states which are either exactly massless or much lighter than any other massive particle in the model. Axions and majorons constitute well-motivated examples of this type particle. In work, we explore phenomenology these low-energy leptonic observables. After adopting a model independent approach that includes both scalar pseudoscalar inter...