Holey nanosheets by patterning with UV/ozone.
Self-assembled monolayers (SAMs) of 1,1'-biphenyl-4-thiol are patterned by using UV/ozone treatment through a shadow mask. After subsequent irradiation with low-energy electrons, the SAM is cross-linked to form a two-dimensional, holey nanosheet with a thickness of approximately 1 nm. This nanosheet is mechanically stable and can be released from the original gold substrate and transferred to new substrates, including transmission electron microscopy (TEM) grids. The process is monitored by complementary microscopic techniques as well as X-ray photoelectron spectroscopy (XPS).
Nottbohm
Christoph T
CT
Physik supramolekularer Systeme, Universität Bielefeld, Universitätsstrasse 25, 33615 Bielefeld.
Wiegmann
Sebastian
S
Beyer
André
A
Gölzhäuser
Armin
A