Speaker: 

Prof. Jinn P. Chu, Professor at Taiwan University of Science and Technology, Taipei, China. 

Tittle: Wafer-Scale Highly Ordered Nanostructured Arrays from Superhydrophilic to Superhydrophobic Structures

Time: 9:00 January 14th, 2026 (Wednesday)

Venue: Conference Room 6, Building No.5

Host: Prof. Shenlong Zhao

Abstract: 

This presentation highlights the wafer-scale fabrication of highly ordered nanostructure arrays using semiconductor-based lithography and sputter deposition techniques. We have successfully produced diverse array architectures, including nanotube array, pillar array, disk array, and mesh. Notably, our nanotube array fabrication was recognized with an American Chemical Society (ACS) award at Japan Nano Tech 2018 and later featured on the front cover of Nanoscale (Royal Society of Chemistry, RSC) in June issue of 2025. 

In the second part of this presentation, I will also report a novel superhydrophilic coating based on a sputter-deposited 316 stainless steel layer. The coated surface exhibits a water contact angle of 10 degrees or less. Furthermore, this coating demonstrates notable antifouling and underwater superoleophobic properties, making it highly advantageous for application in separation membranes designed for oil/water emulsions. In addition, this coating has proven highly effective at enhancing electrochemical responses, making it an excellent functional layer for sensor electrodes.

Info.:

Dr. Jinn P. Chu is the Chair Professor of Materials Science and Engineering at Taiwan University of Science and Technology (Taiwan Tech), Taipei, Taiwan Province of China. He obtained his Ph.D. in Materials Science from University of Illinois at Urbana-Champaign, USA. He is Fellow of MRS-Taiwan (MRS-T) society and has served as the elected President of Taiwan Association for Coatings and Thin Films Technology (TACT). He was Vice President of MRS-T in 2020-2023. Currently, he is an Associate Editor of American Vacuum Society (AVS) Journal of Vacuum Science and Technology (JVST). He is also an Editorial Board member of Thin Solid Films journal. He has published over 230 articles and holds about 50 patents. In recognition of his research, he has received many awards, including Outstanding Research Award, Innovation Awards, American Chemical Society (ACS) Award at Japan Nano Tech International Conference. He has been listed in Top 2% Scientists by Stanford University.