Constructing robust all-inorganic contacts enable stable perovskite solar cells with efficiencies over 20%

Developing photovoltaic(PV)cells for harvesting renewable and clean solar energy is a promising strategy to meet the growing energy demand.Perovskite solar cells(PSCs),as a new player in the photovoltaic field,exhibit rapid development with an original power conversion efficiency(PCE)of 3.81%in 2009,a promising PCE of over 20%in 2014 and a record PCE of 22.1%in

Developing photovoltaic（PV）cells for harvesting renewable and clean solar energy is a promising strategy to meet the growing energy demand.Perovskite solar cells（PSCs）,as a new player in the photovoltaic field.