DSSCs have reached certified efficiency of 11.9% and device efficiency of 14.3% using I−/I3− or Co(ii/iii) redox shuttles. But, they have many constraints and Cu(i/ii) electrolytes are found to be best alternatives and the efficiency has crossed 30% under low light conditions, potential applications in Internet of things.

Perovskite solar cells technology is one of the most advanced and fascinating technologies in the field of photovoltaics due to its low-cost processing and delivering efficient power conversion efficiencies. The ability to become transparent is another prolific property of the perovskite solar cells, which this property has been tried to be exploited in recent times by researchers to serve the environmental and energy needs of human beings. Using this transparency and enabling semitransparent perovskite solar cells (ST-PSCs) to be placed on the windows and rooftops of buildings will reduce room temperature along with fulfilling certain requirements of power needs. This review pays attention to the recent developments in the semitransparent perovskite solar cells from the perspective of the structure of ST PSCs, electrodes and others.