Hydrogen-passivated graphene antidot structures for thermoelectric applications

Hossein Karamitaheri, Mahdi Pourfath, Rahim Faez, Hans Kosina
2011 2011 12th Intl. Conf. on Thermal, Mechanical & Multi-Physics Simulation and Experiments in Microelectronics and Microsystems  
In this work, we present a theoretical investigation of the thermal conductivity of hydrogen-passivated graphene antidot lattices. Using a fourth nearest-neighbor force constant method, we evaluate the phonon dispersion of hydrogenpassivated graphene antidot lattices with circular, hexagonal, rectangular and triangular shapes. Ballistic transport models are used to evaluate the thermal conductivity. The calculations indicate that the thermal conductivity of hydrogen-passivated graphene antidot
more » ... d graphene antidot lattices can be one fourth of that of a pristine graphene sheet. This reduction is stronger for right-triangular and iso-triangular antidots among others, all with the same area, due to longer boundaries and the smallest distance between the neighboring dots. 978-1-4577-0106-1/11/$26.00 ©2011 IEEE
doi:10.1109/esime.2011.5765811 fatcat:rvfq45wqhfbffc5zvf5r7eyxsy