| 학회 |
한국재료학회 |
| 학술대회 |
2019년 봄 (05/15 ~ 05/17, 평창 알펜시아 리조트) |
| 권호 |
25권 1호 |
| 발표분야 |
F. 광기능/디스플레이 재료 분과 |
| 제목 |
Ligand engineering of the inoganic perovsite to improve stability using silanizaiton of the ligand |
| 초록 |
Despite the many outstanding advantages for perovskite as light-emitting material, its stability issue makes its practical application difficult. We synthesized the silica-coated cesium lead halide perovskite (Cs4PbBr6) using (3-aminoproly)trimethoxysilane instead of oleylamine to improve moisture stability by hot injection method. The synthesized perovskite exhibited the properties of narrow band width (22.4 nm) and emission wavelength (512.9 nm), indicating that it kept the characteristics of the typical CsPbBr3. Furthermore, the emission intensity was maintained to 50% after exposure to artificial condition for 6h from the pristine due to the thin silane shell on the surface. The Commission International de I’Eclairage color triangle reached ~115% of the National Television System Committee standard, indicating the high color purity of silica-coated perovskite. We expect that the ligand modification of perovskite can improve the properties of perovskite materials. Acknowledgement This research was financially supported by the Ministry of Trade, Industry and Energy(MOTIE) and Korea Institute for Advancement of Technology(KIAT) through the International Cooperative R&D program(P0006844_Development of color conversion nanocrystal luminescence materials for next generation display). |
| 저자 |
유정현1, 권석빈1, 최승희1, 김현빈1, 정성국1, 송영현2, 윤대호1
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| 소속 |
1성균관대, 2한국광기술원 |
| 키워드 |
Halide Perovskite; Ligand engineering; Stability; Silanization
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| E-Mail |
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