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Electronic
Effects in Single Crystals of Organic Molecular Semiconductors
(this project has been
moved to the newly-established Podzorov’s lab at Rutgers)
The
project focuses on exploration of intrinsic
(i.e., not limited by electronic defects) polaronic
and excitonic phenomena in small-molecule organic semiconductors.
Recent advances in the fabrication of single-crystal organic devices (and, in
particular, the fabrication of high-quality single-crystal organic
field-effect transistors in our group) open new exciting opportunities for
basic science and applications. Formation, dynamics and transport of polarons and excitons are at the heart of the operation
of organic field-effect transistors, photovoltaic cells, and light-emitting
diodes. Exploration of these processes in molecular crystals is
critical for the realization of ultimate performance of organic electronic
devices. The research has already significantly contributed to better
understanding of electronic and optical properties of organic semiconductors;
it elucidates the ultimate limits of the performance of organic electronic
devices and has an important impact on foundations of the emerging field of
“flexible” electronics.
Selected Publications:
M. E. Gershenson,
V. Podzorov, and A. Morpurgo, Electronic Transport
in Single-Crystal Organic Transistors, Rev. Mod. Phys. 78, 973-989 (2006).
H. Najafov,
I. Biaggio, V. Podzorov, M. Calhoun,
and M. E. Gershenson, Primary Photoexcitations
and the Origin of the Photocurrent in Rubrene Single Crystals, Phys. Rev. Lett. 96, 056604 (2006).
V.
Podzorov, E. Menard, J. A. Rogers and M. E. Gershenson, Hall effect in the accumulation layers
on the surface of organic semiconductors, Phys. Rev. Lett.
95, 226601 (2005).
R. W. I. de Boer,
M. E. Gershenson, A. F. Morpurgo,
and V. Podzorov, Organic single-crystal field-effect transistors, in
Physics of Organic Semiconductors, Ed. W.Brűtting,
pp 393-432 (Wiley-VCH, 2005).
V. Podzorov and
M. E. Gershenson, Photo-induced charge transfer at the interface
between organic molecular crystals and polymers, Phys. Rev. Lett. 95, 016602 (2005).
V. Podzorov, E. Menard,
A. Borissov, V. Kiryukhin,
J. A. Rogers, M. E. Gershenson, Intrinsic charge
transport on the surface of organic semiconductors. Phys. Rev. Lett. 93, 086602 (2004).
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