讲座题目：Desktop Fabrication of 2D and 3D Polymer Nanostructures with Scanning Probe Lithography  

讲座时间： 3:00 pm, 2016年12月2日（周五）

讲座地点：实验一楼二楼材料学院第一会议室

联系人：刘润辉教授  

Desktop Fabrication of 2D and 3D Polymer Nanostructures with Scanning Probe Lithography

Zijian Zheng*

Laboratory for Advanced Interfacial Materials and Devices (AiMD), Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong SAR, China

* Corresponding author’s e-mail address:tczzheng@polyu.edu.hk

Polymer nanostructures are very important for a wide range of fields spanning from electronic to biomedical researches. Conventionally, these nanostructures are fabricated via photolithography or electron beam lithography, which has significant limitation on the choice of polymer and the access of the equipment by researchers. Recently, scanning probe lithography (SPL), a series of tip-based fabrication using a sharp scanning tip, has emerged as a powerful yet low-cost tool for nanofabrication. This talk will discuss how to develop SPL for patterning 2D and 3D polymer nanostructures. Two important strategies, including (1) the top-down direct transfer of polymer materials by dip-pen nanolithography (DPN) and (2) the bottom-up grown of polymer brushes via dip-pen nanodisplacement lithography (DNL), will be discussed in detail. Finally, we will introduce some latest development of large-area fabrication using tip-arrays, and their application in the control of cell activities such as cell adhesion and alignment.

References

Science 2008,321, 1658;Angew. Chem. Int. Ed. 2015,54,12894;Angew. Chem. Int. Ed. 2011,50, 6506;Small2015,11, 6013;Small2015,11, 913;Small2015,11, 613; Small 2013,9, 285;Small 2012,8, 356;Small 2012,8, 266;Small 2010,6, 108;Adv. Funct. Mater. 2013,23, 3239;Nanoscale 2011, 3, 4929;Nanoscale 2010,2, 2614

Short biography of Prof. Zijian Zheng

Prof. Zijian Zheng is currently Associate Professor at the Institute of Textile and Clothing (ITC) at The Hong Kong Polytechnic University. His research interests are surface science, self-assembly, nanolithography, polymer science, and bendable/stretchable/wearable/graphene materials and electronic devices. He received his B. Eng. with honor from the Department of Chemical Engineering at Tsinghua University in 2003. Between 2004 and 2007, Dr. Zheng moved to the Department of Chemistry and Nanoscience Center at University of Cambridge for his PhD study under the supervision of Prof. Wilhelm T. S. Huck, where he worked on nanotechnology and organic optoelectronics. In 2008, Dr. Zheng joined the group of Prof. Chad A. Mirkin as a postdoctoral research fellow in the Department of Chemistry and International Institute for Nanotechnology at Northwestern University, working on the development of Dip-Pen Nanolithography and Polymer Pen Lithography. He joined ITC as Assistant Professor in 2009 and was promoted to tenured Associate Professor via a fast track. He has published ~60 papers in high-impact international scientific journals includingScience,Nature Comm.,Advanced Materials,Journal of the America Chemical Society,Angewandte Chemie. He also files 15 international and China patents. He serves as Guest Editor for Advanced Materials. He is recipient of several international awards such as GENEVA Innovation Award and Future Leaders Award in 2015 and Emerging Investigator Award and Early Career Award in 2016.