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| Type |
Poster Presentation |
| Area |
Physical Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
PHYS.P-185 |
| Subject |
Synthesis of Perovskite Quantum Dots and Their Optical Properties |
| Authors |
Hyeongyu Bae, Kang Taek Lee1,*
Department of Chemistry, Gwangju Institute of Science and Technology, Korea
1Division of Physical Chemistry Department of Chemi, Gwangju Institute of Science and Technology, Korea
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| Abstract |
In recent years, there is an increasing demand for displays with high color reproducibility and high color purity, which can be realized using the materials with spectrally narrower emission. Recently, perovskite quantum dots have attracted interest because of their light absorption region, high exciton dissociation, and charge carrier transport characteristics. Especially, Methylammonium lead halide (MAPbX3, X = Cl, Br, I) perovskite quantum dots have a cubic structure of 5 nm to 15 nm in diameter. The emission wavelength of the perovskite quantum dots in the same composition can be shifted about 50 nm depending on the particle size because of quantum confinement effect. Also, by controlling the composition ratio of the halogen anion, it is possible to change the emission wavelength. Such perovskite quantum dots exhibit a high quantum efficiency of ~90 % or more for green, and a narrow full width at half maximum of 12-42 nm. |
| E-mail |
nen3609@naver.com |
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121st General Meeting of the KCS