| 학회 | 한국공업화학회 |
| 학술대회 | 2018년 가을 (10/31 ~ 11/02, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 | 22권 2호 |
| 발표분야 | 무기재료_포스터 |
| 제목 | The effect of ammonium halide additives on the performance of perovskite solar cells |
| 초록 | CH3NH3PbI3-xClx species were fabricated as light-absorbing layers for perovskite solar cells (PSCs) by employing NH4I, NH4Br, and NH4Cl as additives by annealing at 100 °C for different times. Solutions containing CH3NH3I, PbI2, and PbCl2 (4:1:1 molar ratio) in N,N-dimethylformamide were used to prepare perovskites with NH4I, NH4Br, and NH4Cl as additives at concentrations of 0.1M and 0.3M. We confirmed that the additives helped increase the grain size and reduce pinholes in the perovskite films. The best PSC performance with a power conversion efficiency of 9.13% was achieved using 0.1M NH4I by annealing for 5min, whereas the power conversion efficiency of the perovskite solar cells without additives was 5.40%. Acknowledgment This research was supported by the Basic Research Laboratory (2018R1A4A1022647) and Creative Materials Discovery Program (2017M3D1A1039379) of the National Research Foundation of Korea (NRF) funded by the Korean government. |
| 저자 | 허도연, 김수영 |
| 소속 | 중앙대 |
| 키워드 | perovskite solar cells; additive; ammonium halide |
