Our main fields of research are organic and perovskite photovoltaic(PV) cells, which are devices that produce electricity from sunlight. Furthermore, based on these solar cells, we are interested in water splitting technology, which produces the hydrogen gas from decomposing the water. Also, we have studied the perovskite light emitting diodes. Together with these fields, we have researched the colloidal quantum dot solar cells, organic field-effect transistors and photodetectors.