Electronic Effects in Single Crystals of Organic Molecular Semiconductors
(this project has been moved to the newly-established Podzorov’s lab at Rutgers)
Department of Physics and Astronomy
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).