دورية أكاديمية
Hierarchical Self-Assembly of Thickness-Modulated Block Copolymer Thin Films for Controlling Nanodomain Orientations inside Bare Silicon Trenches
| العنوان: | Hierarchical Self-Assembly of Thickness-Modulated Block Copolymer Thin Films for Controlling Nanodomain Orientations inside Bare Silicon Trenches |
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| المؤلفون: | Jin Yong Shin, Young Taek Oh, Simon Kim, Hoe Yeon Lim, Bom Lee, Young Chun Ko, Shin Park, Seung Won Seon, Se Gi Lee, Seung Soo Mun, Bong Hoon Kim |
| المصدر: | Polymers, Vol 13, Iss 4, p 553 (2021) |
| بيانات النشر: | MDPI AG, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Organic chemistry |
| مصطلحات موضوعية: | block copolymers, thickness gradient, directed self-assembly, graphoepitaxy, defect, nanolithography, Organic chemistry, QD241-441 |
| الوصف: | We study the orientation and ordering of nanodomains of a thickness-modulated lamellar block copolymer (BCP) thin film at each thickness region inside a topological nano/micropattern of bare silicon wafers without chemical pretreatments. With precise control of the thickness gradient of a BCP thin film and the width of a bare silicon trench, we successfully demonstrate (i) perfectly oriented lamellar nanodomains, (ii) pseudocylindrical nanopatterns as periodically aligned defects from the lamellar BCP thin film, and (iii) half-cylindrical nanostructure arrays leveraged by a trench sidewall with the strong preferential wetting of the PMMA block of the BCP. Our strategy is simple, efficient, and has an advantage in fabricating diverse nanopatterns simultaneously compared to conventional BCP lithography utilizing chemical pretreatments, such as a polymer brush or a self-assembled monolayer (SAM). The proposed self-assembly nanopatterning process can be used in energy devices and biodevices requiring various nanopatterns on the same device and as next-generation nanofabrication processes with minimized fabrication steps for low-cost manufacturing techniques. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 13040553 2073-4360 |
| Relation: | https://www.mdpi.com/2073-4360/13/4/553; https://doaj.org/toc/2073-4360 |
| DOI: | 10.3390/polym13040553 |
| URL الوصول: | https://doaj.org/article/299f9841d9dd4e279931b047d901f305 |
| رقم الأكسشن: | edsdoj.299f9841d9dd4e279931b047d901f305 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 13040553 20734360 |
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| DOI: | 10.3390/polym13040553 |