Research on Perovskite Solar Cell (PSC)

High efficiency and stable solid-state perovskite solar cell (PSC) was discovered for the first time in 2012 by our group. The first version of PSC was composed of the light absorbing material of methylammonium lead iodide, MAPbI₃ (MA = CH₃NH₃), and the hole conducting spiro-MeOTAD, which delivered a power conversion efficiency of 9.7% and showed long-term stability for 500 h without encapsulation. This work was reported in Scientific Reports, 21 August, 2012. Since our first report on the stable and high efficiency solid-state PSC, research activities on perovskite photovoltaics have been increased exponentially. As a result, the record efficiency of PSC reached 25.2% in 2019, achieved by KRICT/MIT team, which now surpassed the conventional high efficiency thin film technologies based on CIGS and CdTe.

In Park’s group, we have been working on super high efficiency PSC toward theoretical efficiency of over 30%, long-term stability under light soaking and 85 ^oC/85% damp heat condition, large-area coating and module fabrication, and new material design for commercialization and next generation photovoltaics. In addition, we will study on structure-property relation to understand better the opto-electronic properties of organic lead halide perovskite. We are also working with experts in photovoltaic and opto-electronics. For this, international collaboration work is welcomed.