| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Ordered nanostructure of Perovskites using Self-Assembled Block Copolymer Template with High Photoluminescence and Stability |
| 초록 |
Ordered nanostructured thin organic-inorganic metal halide perovskites (OIHPs) are of great interest due to the dimensional-dependence of their photoelectronic properties. We developed nanopatterned OIHP films of various shapes and domain sizes with self-assembled block copolymer (BCP) as a template for controlled crystallization. The precursor solution consisting of methylammonium lead halide (MAPbX3, X=Br-, I-) perovskite and poly(styrene)-b-poly(2-vinylpyridine) (PS-b-P2VP) was spin-coated on a substrate. Precursor ions preferentially coordinated with the P2VP domains, yielding ordered nanocrystals with various nanostructures with controlled domain size. The nanopatterned OIHPs showed notably enhanced photoluminescence (PL) with high resistance to humidity and heat due to geometrical confinement and chemical passivation of the OIHPs with the P2VP chains. The self-assembled OIHP films provided a facile control of color coordinates by color conversion layers in blue-emitting devices. |
| 저자 |
박유진, 한효원, 박철민
|
| 소속 |
연세대 |
| 키워드 |
block copolymer; perovskite; self-assembly; nanopattern
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| E-Mail |
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