Pattern formation of metal-oxide hybrid nanostructures via the self-assembly of di-block copolymer blends
- Authors
- Jung, Dae Soo; Bang, Jiwon; Park, Tae Wan; Lee, Seung Hyup; Jung, Yun Kyung; Byun, Myunghwan; Cho, Young-Rae; Kim, Kwang Ho; Seong, Gi Hun; Park, Woon Ik
- Issue Date
- Oct-2019
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- NANOSCALE, v.11, no.40, pp 18559 - 18567
- Pages
- 9
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- NANOSCALE
- Volume
- 11
- Number
- 40
- Start Page
- 18559
- End Page
- 18567
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/2082
- DOI
- 10.1039/c9nr04038b
- ISSN
- 2040-3364
2040-3372
- Abstract
- The templated self-assembly of block copolymers (BCPs) with a high Flory-Huggins interaction parameter (chi) can effectively create ultrafine, well-ordered nanostructures in the range of 5-30 nm. However, the self-assembled BCP patterns remain limited to possible morphological geometries and materials. Here, we introduce a novel and useful self-assembly method of di-BCP blends capable of generating diverse hybrid nanostructures consisting of oxide and metal materials through the rapid microphase separation of A-B/B-C BCP blends. We successfully obtained various hybridized BCP morphologies which cannot be acquired from a single di-BCP, such as hexagonally arranged hybrid dot and dot-in-hole patterns by controlling the mixing ratios of the solvents with a binary solvent annealing process. Furthermore, we demonstrate how the binary solvent vapor annealing process can provide a wide range of pattern geometries to di-BCP blends, showing a well-defined spontaneous one-to-one accommodation in dot-in-hole nanostructures. Specifically, we show clearly how the self-assembled BCPs can be functionalized via selective reduction and/or an oxidation process, resulting in the excellent positioning of confined silica nanodots into each nanospace of a Pt mesh. These results suggest a new method to achieve the pattern formation of more diverse and complex hybrid nanostructures using various blended BCPs.
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Collections - COLLEGE OF ENGINEERING SCIENCES > DEPARTMENT OF BIONANO ENGINEERING > 1. Journal Articles
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