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Park, Soojin
Nano-Functional Materials Lab
Research Interests
  • Block Copolymers, nanostructured materials for Lithium-Ion batteries, wearable and stretchable energy storage applications

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Macroscopic 10-Terabit-per-Square- Inch Arrays from Block Copolymers with Lateral Order

Cited 334 times inthomson ciCited 331 times inthomson ci
Title
Macroscopic 10-Terabit-per-Square- Inch Arrays from Block Copolymers with Lateral Order
Author
Park, SoojinLee, Dong HyunXu, JiKim, BokyungHong, Sung WooJeong, UnyongXu, TingRussell, Thomas P.
Keywords
THIN-FILMS; BOTTOM-UP; LITHOGRAPHY; GRAPHOEPITAXY; TEMPLATES; SURFACES; ROUTE
Issue Date
200902
Publisher
AMER ASSOC ADVANCEMENT SCIENCE
Citation
SCIENCE, v.323, no.5917, pp.1030 - 1033
Abstract
Generating laterally ordered, ultradense, macroscopic arrays of nanoscopic elements will revolutionize the microelectronic and storage industries. We used faceted surfaces of commercially available sapphire wafers to guide the self- assembly of block copolymer microdomains into oriented arrays with quasi- long- range crystalline order over arbitrarily large wafer surfaces. Ordered arrays of cylindrical microdomains 3 nanometers in diameter, with areal densities in excess of 10 terabits per square inch, were produced. The sawtoothed substrate topography provides directional guidance to the self- assembly of the block copolymer, which is tolerant of surface defects, such as dislocations. The lateral ordering and lattice orientation of the single- grain arrays of microdomains are maintained over the entire surface. The approach described is parallel, applicable to different substrates and block copolymers, and opens a versatile route toward ultrahigh- density systems.
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DOI
http://dx.doi.org/10.1126/science.1168108
ISSN
0036-8075
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