| 학회 |
한국고분자학회 |
| 학술대회 |
2020년 가을 (10/05 ~ 10/08, 부산컨벤션센터(BEXCO)) |
| 권호 |
45권 1호 |
| 발표분야 |
대학원생 구두발표 (발표15분) |
| 제목 |
Luminescence Enhancement of Upconversion Nanoparticle Sensitized Perovskite Quantum Dots in Metal-insulator-metal Configuration under NIR Excitation |
| 초록 |
All inorganic perovskite quantum dots (PeQDs) have received much attention due to excellent optical properties. However, due to their low efficiency under near-infrared (NIR) light excitation, potential applications have been limited. Recently, upconversion nanoparticle (UCNP) sensitized PeQD has been reported as a solution, but low quantum yield of UCNPs and photoluminescence (PL) intensity of PeQD film have still remained as challenges. In this work, UCNP sensitized PeQDs and polystyrene-block-poly(2-vinylpyridine) (PS-b-P2VP) capped gold nanorods (AuNRs) were deposited on a metallic reflector, forming AuNRs/UCNPs and PeQDs/Ag film (MUPM) configuration. By exploiting gap plasmon polariton and localized surface plasmon effects, PL intensity of PeQDs increased under NIR excitation. Furthermore, PS-b-P2VP used as capping ligand prevented PL quenching from the direct contact of AuNRs and Ag film. This work provided a new platform to boost PL intensity of PeQD film under NIR excitation. |
| 저자 |
김민주1, 김영지1, 고형덕2, 현가담1, 김동하1
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| 소속 |
1이화여자대, 2한국과학기술(연) |
| 키워드 |
upconversion nanoparticle; perovskite quantum dot; coupling; plasmonic gold nanorod; amphiphilic diblock copolymer; upconversion enhancement; MIM configuration
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| E-Mail |
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