Nanopatterns with Polymers: Epitaxial van der Waals Self-Assembly of Soft 2D Layers
聚合物表面纳米图案化：外延范德华力导向的二维自组装
Jillian M. Buriak
ABSRACT
Nanopatterned surfaces are of central importance to a variety of areas and applications, such as computer chip architectures, tissue interfacing, biosensors, light management and plasmonics, among others. Typically, the various approaches to nanopatterning of surfaces, including silicon, are broken into two major classes: top-down methods such as photolithography, e-beam lithography and scanning force microscopy variants, and bottom-up synthetic techniques, including self-assembly. Since lithography is the single most expensive step in computer chip manufacturing, the use of self-assembled block copolymers
(BCPs) templates on surfaces is being seriously considered by the semiconductor industry to pattern sub-20 nm features on a semiconductor surface; the Industry Technology Roadmap for Semiconductors (ITRS) terms this approach ‘directed self-assembly’, or DSA. Here, we will describe the remarkable versatility of using BCPs, polymers that contain sufficient chemical information to form highly ordered templates over large areas. Recently, the experimental observation of what are termed static distortion waves (SDWs) [also referred to as mass distortion waves (MDWs)] that are local chiral twisting of lattices, has become a topic of extreme interest in the area of 2D-based materials - perfect timing as the discovery of SDWs/MDWs in block copolymer-based self-assembled structures that are at least an order of magnitude larger in scale serve as an easily studied and tailored model for these motifs on 2D materials.
纳米表面图案化技术已经在芯片制造，生物组织连接, 生物传感器，光能转化和等离子体等方面得到了广泛应用。 硅表面图案化技术大致可分为自下而上和自上而下两大类。前者包括光刻，电子束光刻和扫描探针显微技术，后者包括自组装。因为光刻是电脑芯片制造工艺中最为昂贵的一步，使用嵌段共聚物在硅表面自组装，得到精度为20纳米以下的图案，成为了一个重要且富有前景的替代方案。国际半导体技术路线图（ITRS）把这种方式称为导向自组装，简称DSA。本报告将介绍基于嵌段共聚物图案的多样性和可调控的化学性质，自组装得到高度有序的大面积二维图案。其中，实验中观察到的静态畸变波(SDWs)， 也被称作质量畸变波(MDWs），即晶格局部发生手性扭曲，是二维材料研究领域广受关注的热点。与此同时，我们也在嵌段共聚物自组装研究中观察到了类似静态畸变波现象。相比于二维材料研究中观察到的原子尺度上的静态畸变波，纳米尺度的嵌段共聚物自组装的静态畸变波图案的尺寸显著高于原子尺度的静态畸变波， 因此， 可以作为二维材料研究中一个简洁可控的模型。
BIOGRAPHY
Prof. Jillian M. Buriak is an Associate Editor at ACS Nano, and holds the Canada Research Chair of Nanomaterials for Energy in the Department of Chemistry at the University of Alberta, and the National Institute for Nanotechnology (NINT). She graduated with an A.B. from Harvard University in 1990, and a Ph.D. in 1995 from the Université de Strasbourg/Université Louis Pasteur in France, and was an NSERC post-doctoral fellow at The Scripps Research Institute in La Jolla, California from 1995-1997. She started her independent career at Purdue University as an Assistant Professor of Chemistry in 1997 and was promoted to Associate Professor with tenure in 2001. In 2003, she moved to the University of Alberta and NINT in Canada as a Professor of Chemistry and Canada Research Chair. Buriak was on the Board of Reviewing Editors for Science from 2004-2009, was an Associate Editor for ACS Nano from 2009-2013, and from 2014-2020 was the Editor-in-Chief of the ACS journal Chemistry of Materials. In July of 2020, she rejoined ACS Nano as an Associate Editor. Recent awards include the ACS Nano Lectureship (North America) in 2020, the Rio Tinto Alcan Award from the Canadian Society for Chemistry (2018), the XingDa Lectureship from Peking University (2018), and the Arthur K. Doolittle Award from the Polymer Materials Science and Engineering Division of the American Chemical Society (2015). She is a Fellow of the Royal Society of Chemistry (UK), the Royal Society of Canada, and the American Association for the Advancement of Science.
Jillian Buriak 教授，现任职于加拿大阿尔伯塔大学化学系和国立纳米材料研究所，同时也担任加拿大纳米能源材料首席科学家和 ACS Nano 副主编。 先后在1990年和1995年，从哈佛大学和法国斯特拉斯堡大学取得本科和博士学位。随后，在1995-1997期间，受到加拿大自然科学基金会全额资助，在美国Scripps研究所从事博士后研究。1997年，加入普渡大学成为助理教授，2001年晋升为副教授。随后在2003年，加入了阿尔伯塔大学和国立纳米材料研究所，被评为教授。在2004-2009年，担任Science审稿委员会成员；2009-2013年，担任ACS Nano 副主编；2014-2020年，担任Chemistry of Materials主编；2020年7月，回到 ACS Nano，担任副主编。最近获得的奖项和荣誉有：ACS Nano 讲学奖（2020），加拿大化学会Rio Tinto Alcan奖（2018），北京大学兴大讲学奖（2018），美国化学会聚合物材料科学与工程分会 Arther K. Doolittle 奖。她也是英国皇家化学会和美国科学促进会会士，以及加拿大皇家科学院院士。