| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 봄 (04/07 ~ 04/09, 대전컨벤션센터) |
| 권호 |
46권 1호 |
| 발표분야 |
콜로이드 및 분자조립 부문위원회 Ⅰ |
| 제목 |
Enhanced Stabilities and Production Yields of MAPbBr3 Quantum Dots and Their Optoelectronic Applications |
| 초록 |
Organic-inorganic hybrid CH3NH3PbBr3 (MAPbBr3) perovskite quantum dots (QDs) have attracted much attention for optoelectronic applications. However, during purification process, commonly used polar protic and aprotic solvents can readily destruct the MAPbBr3 perovskite nanocrystal structure, which significantly lowers their production yields and deteriorates optical properties. Herein, we introduce methyl acetate to purify as-synthesized MAPbBr3 QDs for stable QD solution with high production yields. The washed MAPbBr3 QDs maintained their optical properties and crystalline structures for 28 days in solution states. In time-resolved photoluminescence analysis, the methyl acetate washed QDs showed suppressed non-radiative recombination compared to QDs washed with other solvents, supporting the minimized damage on the QDs. Finally, a composite of the MAPbBr3 PQDs and a thermoplastic elastomer is demonstrated as a stretchable and self-healable green color filter. |
| 저자 |
양한솔, 노성훈, 서의현, 정재민, 오종규, 이경호, 장재영
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| 소속 |
한양대 |
| 키워드 |
MAPbBr3 perovskite; quantum dots; methyl acetate; ligand-assisted reprecipitation; stability; color filter
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| E-Mail |
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