| 초록 |
Organic-inorganic hybrid perovskite solar cells that combine a mesoporous scaffold, an organometal trihalide perovskite light absorber and an organic hole transporter have exhibited high efficiencies over 12 %. However, they require high processing temperatures of up to 500 ℃ to sinter the metal-oxide paste to form the mesoporous scaffold. To fabricate low-temperature processable perovskite solar cells, we introduced sol-gel processed metal oxide scaffold. The metal oxide scaffold showed high electron mobility and enhanced surface morphology than TiO2 scaffold. We successfully fabricated low-temperature processed perovskite solar cell devices on the sol-gel processed metal oxide scaffold. Photovoltaic performances were characterized and showed efficient power conversion efficiency. |
