Seminar & Colloquium
[세미나: 4월 1일(월), 오후 4시] Prof. Atsushi Wakamiya, Institute for Chemical Research, Kyoto University
Title
Materials Chemistry for Efficient Perovskite Solar Cells
Speaker
Prof. Atsushi Wakamiya, Institute for Chemical Research, Kyoto University
* Education
- 1998 B.Sc., Kyoto University
- 2000 M. Sc., Kyoto University
- 2003 Ph. D., Kyoto University
* Experience
- 2003 ~ 2010 Assistant Professor, Nagoya University
- 2010 ~ 2018 Associate Professor, Kyoto University
- 2018 ~ present Professor, Kyoto University
| Date | Monday April 1st , 2024
| Time | 16:00 ~
| Venue | 33동 222호(DB세미나실)
[Abstract]
Perovskite solar cells attract attention as promising cost-effective next generation printable photovoltaics. The power conversion efficiencies (PCEs) have been substantially increased in a short period, based on the improvements of the fabrication protocols for the perovskite layer, and the development of new materials for passivation of the surface or efficient charge collection, etc.
Our research approaches for perovskite solar cells are as follows.1,2
1) Development of highly purified perovskite precursor materials:3,4 We synthesis a series of complexes of lead halides or tin halides as purified precursor for perovskite materials.
2) Development of fabrication methods for perovskite layer by solution process: Based on "dipole strategy", we designed the surface passivation organic materials.5–7 We develop the efficient fabrication methods of perovskite layer including top and bottom surface passivation based on the film formation mechanism.1
3) Development of organic semiconductors as efficient charge-collection materials from perovskite layer: We design and synthesis novel pi-conjugated materials, PATAT, in terms of control of the energy level of frontier orbitals, molecular orientation, and interface between perovskite layer.8
References:
1. S. Hu, J. A. Smith, H. J. Snaith, A. Wakamiya, Precis. Chem. 2023, 1, 69.
2. T. Nakamura, A. Wakamiya, et al. Bull. Chem. Soc. Jpn. 2024, in press. (DOI: 10.1093/bulcsj/uoad025)
3. A. Wakamiya, et al. Chem. Lett. 2014, 43, 711.
4. T. Nakamura, A. Wakamiya, et. al. Nat. Commun. 2020, 11, 3008.
5. S. Hu, A. Wakamiya, et al. Energy Environ. Sci. 2022, 15, 2096.
6. S. Hu, A. Wakamiya, et al. Adv. Mater. 2023, 35, 2208320.
7. S. Hu, J. Pascual, A. Wakamiya, et al. ACS Appl. Mater. Interfaces, 2022, 14, 56290.
8. M. A. Truong, A. Wakamiya, et al, J. Am. Chem. Soc. 2023, 145, 7528.
| Host | 김진영 교수(02-880-8315)