期刊
SCIENTIFIC REPORTS
卷 3, 期 -, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/srep03190
关键词
-
资金
- Center for Integrated Smart Sensors
- Ministry of Science, ICT & Future Planning [CISS-2011-0031848]
- Center for Excitonics, an Energy Frontier Research Center
- U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES) [DE-SC0001088]
Ultrafine, uniform nanostructures with excellent functionalities can be formed by self-assembly of block copolymer (BCP) thin films. However, extension of their geometric variability is not straightforward due to their limited thin film morphologies. Here, we report that unusual and spontaneous positioning between host and guest BCP microdomains, even in the absence of H-bond linkages, can create hybridized morphologies that cannot be formed from a neat BCP. Our self-consistent field theory (SCFT) simulation results theoretically support that the precise registration of a spherical BCP microdomain (guest, B-b-C) at the center of a perforated lamellar BCP nanostructure (host, A-b-B) can energetically stabilize the blended morphology. As an exemplary application of the hybrid nanotemplate, a nanoring-type Ge2Sb2Te5 (GST) phase-change memory device with an extremely low switching current is demonstrated. These results suggest the possibility of a new pathway to construct more diverse and complex nanostructures using controlled blending of various BCPs.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据