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%.
The team invented the world¡¯s first long term stable perovskite solar cells and were published in the journal Nature Scientific Report in August 2012. This research has been cited more than 1,260 times since 2012, and gained recognition for its research excellence.
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