| 초록 |
For the commercialization of perovskite solar cells, stability against moisture, heat, and light must be secured. However, although moisture stability can be secured through encapsulation, degradation of the device against heat generated during operation cannot be prevented. In this study, the thermal stability according to the heat dissipation characteristics of the perovskite device was analyzed. Metal oxide (Al2O3) with excellent thermal conductivity was introduced into hole transporting material (HTM) to improve heat dissipation properties. As a result, we analyzed and optimized the correlation between the surface properties and efficiency of HTM according to the addition of metal oxide. Furthermore, the Al2O3@dopant-free HTM device maintained an initial efficiency of 91% for 31 days at 85% relative humidity and 85°C. |
