| 학회 | 한국화학공학회 |
| 학술대회 | 2016년 가을 (10/19 ~ 10/21, 대전컨벤션센터) |
| 권호 | 22권 2호, p.2248 |
| 발표분야 | 재료 |
| 제목 | Enhanced Moisture Stability of Perovskite Solar Cells using the Facile Hydrophobic Passivation |
| 초록 | Recently, CH3NH3PbI3 perovskite has been one of the most promising materials for the absorber layer in solar cells. The perovskite has diverse advantages, such as a high absorption coefficient, a strong dipole moment causing rapid electron transport, an ideal band gap energy of ∼1.5 eV, simple and various synthetic methods, the ability to transport the hole and the electron, and low cost of synthesis from solution processes. In this research, a novel and facile passivation process for a perovskite solar cell is considered. Poor stability in ambient atmosphere, which is the most critical demerit of a perovskite solar cell, is overcome by a simple passivation process using a hydrophobic polymer layer. With the hydrophobic passivation, the perovskite solar cell shows negligible degradation after a 30-day-storage in ambient atmosphere. Suppressed degradation of the perovskite film is proved in various ways: X-ray diffraction, light absorption spectrum, and quartz crystal microbalance. This simple but effective passivation process suggests new kind of approach to enhance stability of perovskite solar cells to moisture. |
| 저자 | 이민석, 용기중 |
| 소속 | 포항공과대 |
| 키워드 | 화공나노소재 |
| 원문파일 | 초록 보기 |
