Index Catalog // Arch : Northwestern University Institutional Repository

Description:: This research project explores two different processes that can be used to pattern organic molecules on silicon. In the first process, hydrogen-terminated silicon surfaces were anodized in nanometer scale with a contact-mode atomic force microscope (AFM). Anodization was done by applying a positive bias voltage to the surface with respect...
Keyword:: Volume 1
Creator:: Donald Kramer, Mark C. Hersam, and Stephen Akuamoah
Owner:: Scholarly Digital Publishing
Date Uploaded:: 07/12/2018
Date Modified:: 07/12/2018
Date Created:: 2004
Resource Type:: Article

Description:: Feedback-controlled lithography (FCL) enables atomically precise patterning of individual molecules on the technologically significant Si(100)-2 x 1:H surface. However, because it is performed in an ultrahigh vacuum (UHV) environment, FCL has thus far been restricted to surface chemistries that can be delivered in the gas phase. The present research attempts...
Keyword:: Volume 1
Creator:: Andrew Baluch, Rajiv Basu, Nathan Guisinger, and Mark C. Hersam
Owner:: Scholarly Digital Publishing
Date Uploaded:: 07/12/2018
Date Modified:: 07/12/2018
Date Created:: 2004
Resource Type:: Article

Description:: The use of a variable resistor-capacitor (RC) bridge circuit was previously reported to be a viable solution to the spurious contribution of fringe capacitance during nanoscale impedance microscopy (NIM). In this paper, a refinement of this technique combined with standard NIM is presented as an impedance characterization tool for organic...
Keyword:: Volume 3
Creator:: Mark C. Hersam, Liam S. Pingree, and Zhiyang Wei
Owner:: Scholarly Digital Publishing
Date Uploaded:: 07/17/2018
Date Modified:: 07/17/2018
Date Created:: 2006
Resource Type:: Article

Description:: Concern about maximizing and improving heterogeneous catalysis has grown because it is used in a variety of applications. This study focused on the effect single-walled carbon nanotubes (SWNTs) had on titanium dioxide (TiO2) catalysis. Two different forms of TiO2, rutile and anatase, were combined with SWNTs in heterogeneous mixtures and...
Keyword:: Volume 6
Creator:: Alexandra V. Ladik, Mark C. Hersam, and Gordana Ostojic
Owner:: Scholarly Digital Publishing
Date Uploaded:: 07/23/2018
Date Modified:: 07/23/2018
Date Created:: 2009
Resource Type:: Article

Description:: Under the correct conditions, aluminum can be anodized in an electrochemical cell to produce hexagonally ordered arrays of nanoscale pores. This study examines how adding the chemicals methanol and acetic acid to a typical anodization solution alters pore-growth patterns across the surface oxide layer. The existence of the unique pore-growth...
Keyword:: Volume 7
Creator:: Mark C. Hersam, Albert L. Lipson, and Ryan S. Ginder
Owner:: Scholarly Digital Publishing
Date Uploaded:: 07/24/2018
Date Modified:: 07/24/2018
Date Created:: 2010
Resource Type:: Article

LIBRARIES | ARCH