Hi,
The CORE-CM seminar this week is:
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*****March 14: Pengpeng Zhang*
//***/Physics and Astronomy, Michigan State University /
"Growth of light harvesting organic molecules on inorganic substrates"
The abstract is below
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*BPS 1400 at 12:00pm,
Pizza and cookies available at 11:45am
Phil Duxbury
Full seminar list is at:
http://www.pa.msu.edu/cmp/CORE-CM/SeminarSpring2013.html
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Control of highly ordered organic molecular thin films with extended ?
systems is currently of intense interest for integration into modern
electronics due to the tunable nature of organic molecules. Selection of
molecules and substrate can lead to desired transport properties such as
charge transfer, charge injection, exciton diffusion, etc., at the
hybrid heterointerface, which is central to the development of organic
and molecular electronics. However, achieving large-scale molecular
ordering remains a significant challenge. I will discuss our recent
discovery of anisotropic crystalline organic step-flow growth on
deactivated Si surfaces that exhibits no true commensurism despite a
single dominate long-range ordered relationship between the organic
crystalline film and the substrate, uniquely distinct from inorganic
epitaxial growth.^1 This growth mode can likely be generalized for a
range of organic molecules and access it to offers the potential for
improved performance for organic field effect transistors, photovoltaics
and nanowire and nanoribbon devices.
1.
S. R. Wagner, et al., Phys. Rev. Lett. *110*, 086107 (2013).
