| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Perovskite Nanoparticle-Siloxane Hybrid Enabling High-Performance, Long-Term Stable, and Biocompatible Color Converting Layer in Display Application |
| 초록 |
We report an extraordinary-long stable crosslinked perovskite nanoparticles (NPs) encapsulated by siloxane hybrid matrix (CPN) at molecular scale, which induces retaining high optical properties in harsh environments (e.g., in water, various polar solvents, and high temperature with high humidity) without additional protecting layer. Organic groups in siloxane matrix make a crosslinking with surface ligands in NPs, which prevents decomposition of perovskites. The low concentration of moisture that diffuses through matrix can chemically heal surface defects in the NPs. Water-induced stabilization of perovskite NPs in matrix is confirmed by various analysis and theoretical calculation. To confirm the feasibility of CPN as a color converting layer, we demonstrate flexible large-area emitting films which are also stable in air and water. Water‐ and chemical‐persistent CPN can be applied to cell proliferation which has been impossible with water‐sensitive materials with toxic elements. |
| 저자 |
장준호1, 김영훈2, 신용민1, 이태우3, 배병수1
|
| 소속 |
1한국과학기술원, 2미국신재생에너지(연), 3서울대 |
| 키워드 |
Perovskite nanoparticle; Siloxane hybrid; Chemical crosslinking; Long-term stability; Color converting layer in display
|
| E-Mail |
|
