| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO)) |
| 권호 |
25권 1호 |
| 발표분야 |
포스터-화학공정 |
| 제목 |
KMC modeling for ligand exchange process that increase the stability of CsPbBr3 perovskite quantum dots |
| 초록 |
A QDs (Quantum Dots) structure is generally composed of a core, a shell, and a ligand. The ligand of the QDs determines the electrical and optical properties of the QDs, such as light emission, and solubility. Recently, research on ligand exchange to improve stability of QDs. Studies on the surface kinetics and thermodynamics of the ligand exchange process are essential for the research of QDs. This study has developed a KMC (Kinetic Monte Carlo) model to fundamentally analyze the micro-scale ligand exchange process in terms of reaction rate, and the concentration ratio of long chain ligand to the short chain ligand. KMC model can be used to shorten the equilibrium time of the ligand exchange process. Also, we want to obtain the ligand density by using the QDs surface for the concentration of the short chain ligand. When the optimal concentration ratio and ligand density are used, it can be applied to shorten the ligand exchange process time and develop new ligand in the future. |
| 저자 |
노지원1, 문일1, 조형태2, 김정환2, Joseph Sang-il Kwon3
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| 소속 |
1연세대, 2한국생산기술(연), 3Texas A&M Univ. |
| 키워드 |
Quantum dots; Kinetic Monte Carlo; Ligand exchange; CsPbBr3
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| E-Mail |
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