Now showing items 1-5 of 5
Theoretical characterization of titanyl phthalocyanine as a p-type organic semiconductor: Short intermolecular π-π interactions yield large electronic couplings and hole transport bandwidths
(Georgia Institute of Technology, 2008-01-21)
The charge-transport properties of the triclinic phase II crystal of titanyl phthalocyanine (α-TiOPc) are explored within both a hopping and bandlike regime. Electronic coupling elements in convex- and concave-type dimers ...
Low-voltage pentacene organic field-effect transistors with high-kappa HfO₂ gate dielectrics and high stability under bias stress
(Georgia Institute of Technology, 2009-12)
Low-voltage pentacene organic field-effect transistors are demonstrated (operating voltage of −3 V) with high-κ hafnium dioxide gate dielectrics grown by atomic layer deposition at 200 °C. A high hole mobility of 0.39 cm²/V s ...
Remote doping of a pentacene transistor: Control of charge transfer by molecular-level engineering
(Georgia Institute of Technology, 2010-09)
We demonstrate that holes from a p-doped N,N′-diphenyl-N,N′-bis(1-naphthyl)-1,1′-biphenyl-4,4′-diamine (α-NPD) layer transfer to an adjacent pentacene film. The spatial separation of carriers from dopants, or remote doping, ...
Theoretical study of substitution effects on molecular reorganization energy in organic semiconductors
(Georgia Institute of Technology, 2011-09)
Chemical substitutions are powerful molecular design tools to enhance the performance of organic semiconductors, for instance, to improve solubility, intermolecular stacking, or film quality. However, at the microscopic ...
An improved dynamic Monte Carlo model coupled with Poisson equation to simulate the performance of organic photovoltaic devices
(Georgia Institute of Technology, 2011-03)
We describe a new dynamic Monte Carlo model to simulate the operation of a polymer-blend solar cell; this model provides major improvements with respect to the one we developed earlier [J. Phys. Chem. B 114, 36 (2010)] by ...