VISIT of Seunghun Hong

Center for Nanofabrication and Molecular Self-Assembly

Northwestern University 

February 14- February 17,2001

VERSION 5.0

(Check Web for latest update)

Wednesday, February 14

 

6:43pm

Arrive OKC TWA flight0519 -pickup by Matt Johnson

Thursday, February 15

 

8:00am	Pick Up from Montford Inn, Matt Johnson
8:30am-9:00am	Departmental Tour - Ryan Doezema,Rm. 131
9:00am-10:00am	Laboratory Tour - Mike Santos, Rm. 105
10:00am-10:45am	Laboratory Tour - Eric Abraham, Rm. 125
10:45am-11:30pm	Laboratory Tour - Neil Shafer-Ray, Rm. 124
11:30am-12:00pm	High Energy, Rm. 320
12:00pm-1:30pm	LUNCH - Condensed Matter Group
1:30pm-2:00pm	Dean Lee Williams, VP for Research, Rm. 313, Buchanan Hall
2:00pm-3:00pm	Laboratory Tour - John Furneaux (Phys. Science Building,  Rm. 320, x5-0102)
3:00pm-3:30pm	Meet with Grad Students, Rm. 301
3:30pm-4:00pm	Tea, 1st Floor Foyer
4:00 pm-5:00pm	Talk:?Dip-Pen Nanolithography and Molecular Self-Assembly:  Towards a 2,000,000 DPI Chemical and Biological Plotter  for Solid Substrates "
5:00 pm-6:00pm	Free Time
6:00 pm-7:30 pm	Dinner at ??
7:30pm-9:30pm	Reception at the house of Kieran Mullen 222 E. Duffy St., phone: 321-6168

Friday, February 16

 

8:00am	Pick Up from Montford Inn,Matt Johnson
8:30am-9:00am	Laboratory Tour - Sheena Murphy, Rm. 101
9:00am-9:30	Astronomy & Astrophysics, Rm. 320
9:30am-10:30am	Laboratory Tour - Matt Johnson, Rm. 106
10:30am-11:00am	CAS Dean Genova, 1100 Physical Sciences Building
11:00am-12:00am	Research discussion with Kieran Mullen and Bruce Mason
12:00am-1:30pm	LUNCH with Committee A
1:30pm-2:30pm	Atomic, Molecular and Chemical, Rm 201
2:30pm-3:00pm	Open Time/ Tour Facilities, Instrument Shop etc.
3:00pm-4:00pm	Research Plan Discussion (Matt, Sheena, Kieran, CMP, Brad, Dan G.) Rm. 320
4:00pm-4:30pm	Exit Interview - Ryan Doezema, Rm. 131
6:30pm-8:00pm	Dinner

Saturday February 17

 

8:00am

Pick Up from Montford Inn,Matt Johnson.Drop off at airport for 10:55am flight 0216 on TWA

Dip-Pen Nanolithography and Molecular Self-Assembly: 

Towards a 2,000,000 DPI Chemical and Biological Plotter 

for Solid Substrates

Speaker: Seunghun Hong

NU Center for Nanofabrication and Molecular Self-Assembly,

Northwestern University, 2145 Sheridan Road, Evanston, IL60208

Abstract

We have developed a new type of direct-write nanolithography, which allows one to deliver collections of molecules in a positive-write mode with nanometer scale resolution.This method relies on an AFM tip as a writing tool, adsorbates as inks, and a solid substrate as paper. It is termed ?dip-pen nanolithography (DPN)? due to the similarity to its macroscopic analog, dip-pen writing. This presentation will address how DPN can be used to: 1) generate monolayer patterns with 15 nm linewidth resolution under ambient conditions, 2) align patterns in near-perfect fashion, and 3) duplicate patterns made of one or more inks in parallel fashion [1-3].Present and future implications of this methodology in self-assembled nanostructures research will be addressed.

1. ?A Nanoplotter with Both Parallel and Serial Writing Capabilities,? S. Hong, C. A. Mirkin Science 288, 1808 (2000).

2. ?Multiple Ink Nanolithography: Toward a Multiple-Pen Nano-Plotter,? S. Hong, J. Zhu, C. A. Mirkin Science 286, 523 (1999).

3. ?Dip-Pen Nanolithography,? R. Piner, J. Zhu, F. Xu, S. Hong, C. A. Mirkin Science 283, 661 (1999).