<p>Recent
trends in materials science have exploited noncovalent monolayer chemistries to
modulate the physical properties of 2D materials, while minimally disrupting
their intrinsic properties (such as conductivity and tensile strength). Highly ordered monolayers with pattern
resolutions <10 nm over large scales are frequently necessary for device
applications such as energy conversion or nanoscale electronics. Scanning probe microscopy is commonly
employed to assess molecular ordering and orientation over nanoscopic areas of
flat substrates such as highly oriented pyrolytic graphite, but routine
preparation of high-quality substrates for device and other applications would
require analyzing much larger areas of topographically rougher substrates such
as graphene. In this work, we combine
scanning electron microscopy with polarization modulated IR reflection
adsorption spectroscopy to quantify the order of lying down monolayers of
diynoic acids on few layer graphene and graphite substrates across areas of ~1
cm<sup>2</sup>. We then utilize these highly ordered molecular films for
templating assembly of di-peptide semiconductor precursors at the nanoscale,
for applications in organic optoelectronic device fabrication.<br></p><p></p>
| Identifer | oai:union.ndltd.org:purdue.edu/oai:figshare.com:article/7406948 |
| Date | 17 January 2019 |
| Creators | Shane R. Russell (5930207) |
| Source Sets | Purdue University |
| Detected Language | English |
| Type | Text, Thesis |
| Rights | CC BY 4.0 |
| Relation | https://figshare.com/articles/CONTROLLING_AND_CHARACTERIZING_MOLECULAR_ORDERING_OF_NONCOVALENTLY_FUNCTIONALIZED_GRAPHENE_VIA_PM-IRRAS_TOWARD_TEMPLATED_CRYSTALLIZATION_OF_COMPLEX_ORGANIC_MOLECULES/7406948 |
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