| 학회 |
한국화학공학회 |
| 학술대회 |
2022년 봄 (04/20 ~ 04/23, 제주국제컨벤션센터) |
| 권호 |
28권 1호, p.969 |
| 발표분야 |
[주제 12] 화학공학일반(부문위원회 발표) |
| 제목 |
kMC model for predicting solar cell performance due to ligand exchange of perovskite quantum dot |
| 초록 |
Perovskite quantum dots(QDs) have excellent photoelectric properties and are being spotlighted as materials for photovoltaic devices such as solar cells, LEDs, and photodetectors. The ligand of the QD is an important factor that significantly influences the optical and electrical properties of the QD. Therefore, exchanging the long-chain ligand, which is the capping ligand of the synthesized QD, with a short-chain ligand with excellent conductivity is essential for the performance of the device using the QD. Since the ligands of the exchanged QDs are unstable in air, only by exposure to air for a short time oxidative desorption and compositional changes of the ligands are induced. We made a multi-scale model to investigate the phenomenon of the QD surface where ligand exchange occurs and further simulated the phenomenon in which a thin film of the ligand exchanged QD works as a solar cell. Our multi-scale model showed a C-V value similar to a solar cell using an actual ligand-exchanged QD, so it was possible to verify that the model was made correctly. |
| 저자 |
노지원1, Niranjan Sitapure2, 문일3, 김정환1, Joseph Sang-Il Kwon2
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| 소속 |
1한국생산기술(연), 2Texas A&M Univ., 3연세대 |
| 키워드 |
공정시스템(Process Systems Engineering) |
| E-Mail |
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| 원문파일 |
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