| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
분자전자 부문위원회 II |
| 제목 |
Study on Trapping Kinetics Depending on Electron Diffusion and Determinant of Electron Extraction Process in Perovskite |
| 초록 |
Time-resolved photoluminescence (TRPL) is the most commonly employed technique when investigating the intrinsic lifetime of a free electron and the charge extraction process. The kinetics of the trapping process should be handled with the diffusion process because the time domains of these two phenomena are similar. Herein, we first report a dynamic trapping model describing the trapping process of a free electron in association with diffusion. The origin of the stretched exponential decay behavior of the trapping process described and further clarified through a simulation study. We also present a simulation study analyzing the electron extraction process. We also investigated the influence of the electron injection coefficient and electron mobility on the electron extraction process through simulation study. We found that the electron injection coefficient at the interface is more important determinant than the electron mobility of the perovskite in electron extraction process. |
| 저자 |
강경호, 임채성, 임세영, 박태호
|
| 소속 |
포항공과대 |
| 키워드 |
perovskite; time-resolved photoluminescence; trapping; diffusion; electron extraction
|
| E-Mail |
|
