Perovskite solar cells, which are receiving a great deal of attention due to low cost and high efficiency, are regarded as a promising photovoltaic technology. Perovskite solar cells are easily produced by solution-process but these perovskite thin films are polycrystalline, and grain boundaries that form are thought to be responsible for causing recombination and the trapping of charge carriers. The research team led by Prof. Nam Gyu PARK successfully demonstrated the production of highly efficient and reproducible perovskite solar cells through a grain boundary healing process, resulting in a power conversion efficiency of 20.4% (published in Nature Energy in 2016).
The team invented the world’s first long term stable perovskite solar cells, which was published in the journal Scientific Reports (Nature Publishing Group) in August 2012. Prof. PARK’s researches on high efficiency mesoscopic solar cells including perovskite solar cell and dye-sensitized solar cell have been cited 23,526 times, and he received H-index of 66 as of January, 2017 by gaining recognition for the research excellence. For more information, please visit homepage of Prof. PARK’s Research Group at http://ecnl.skku.edu.