| 초록 |
AgBiS2 nanocrystal is the promising material for colloidal eco-friendly solar cell. The result from theoretical calculation showed AgBiS2 has water resistant nature. We confirmed this property by measuring X-ray diffraction spectroscopy (XRD) and X-ray photon spectroscopy (XPS). To evaluate its water resistance in real device, we fabricated solar cell by using AgBiS2 as the light harvesting layer. In device fabrication, we compared water treated AgBiS2 film with non-treated one. The device including water treated AgBiS2 film showed comparable power conversion efficiency of 5.70% to that of the control device, 5.75%. Finally, through theoretical and practical experiments, we found that AgBiS2 film have a water-resistance as a candidate for stable next generation solar cell. |
