Projects Synthesis Materials Fabrication Devices Characterization Theory
This year we have nearly 30 projects covering a wide range of nanoscience, including facile synthesis of organic and inorganic nanowires and nanostructures, novel fabrication routes, building of functional bioarchitectures, nanostructured devices and nanowire applications. Please browse the menu (hover on a group and click on the project of choice) to view brief overviews of our projects.
Sub 50 nm pattern replication of inorganic based materials using electrohydronamic lithography in combination with nanoimprinting lithography
In collaboration with Dr. M.S.M. Saifullah at IMRE, Singapore, we are investigating a facile way of replicating nanoscale patterns with inorganic precursor materials. Using the electrohydrodynamic lithography (EHL) technique, 50 nm pattern replication is possible using a master pattern prepared by Nanoimprint lithography (NIL). We are optimizing the heat treatment protocol to obtain high quality functional metal oxide nanostructures utilizing a low temperature laser annealing system. Our technique is very flexible and easily scalable and thus making it suitable for transferring complicated metal oxide nanostructures to various substrates including flexible substrates.

FE-SEM images showing replication of 50 nm nanoline array pattern before and after heat treatment

[1] Suok Lee, Arang Jang, Seung-Nam Cha, Jong-Min Kim, and Dae Joon Kang, “Direct Pattern Transfer and Replication of Inorganic Materials Using Electrohydrodynamic Lithography”, KPS, Ep-IV-114