Perovskite solar cells

Scientists in India have simulated a perovskite cell based on methylammonium tin iodide which they claim may achieve a short circuit current density of 25.97 mA per square centimeter, an open-circuit voltage of 1.203 V, and a fill factor of 87.79%. The cell is composed of a fluorine-doped tin oxide (FTO) substrate, a titanium oxide layer, a methylammonium tin iodide perovskite film, a copper oxide hole transport layer (HTL), and a layer made of gold (Au).

Scientists have set a new efficiency record for a single-junction perovskite solar cell at 25.6%. The cell additionally showed operational stability for 450 hours, and intense electroluminescence with external quantum efficiencies of more than 10%.

A numercal study by researchers at India’s Chitkara University has shown enhanced charge extraction in metal-perovskite-metal back-contact solar cell structure through electrostatic doping. The proposed design yielded a 59.4% improvement in power conversion efficiency over previously reported structures.

Scientists in India modeled the performance of tin-based perovskite (methylammonium tin triiodide) finding that with careful optimizations the material could achieve efficiencies beyond 28%.

India’s Ministry of New and Renewable Energy is funding the research to develop high-efficiency crystalline silicon solar cells, including those with passivated emitter and rear contact structure, and perovskites. 

Low-cost batteries and novel perovskite materials are among the topics selected for joint research and development.