Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Kevin Voon"'
Publikováno v:
Journal of Applied Physics. 127:234302
We present a heat transfer model to obtain the temperature distribution within aligned nanorod arrays. The model includes thermal conduction along each nanorod in addition to a phenomenological treatment of near-field radiative energy exchange among
Autor:
Kevin Voon, Alireza Nojeh, George A. Sawatzky, Mike Chang, Mokter Mahmud Chowdhury, Kais Dridi, Harrison D. E. Fan
Publikováno v:
2018 31st International Vacuum Nanoelectronics Conference (IVNC).
When vertically aligned carbon nanotube arrays (CNT forests) are heated by optical, electrical, or any other means, heat confinement in the lateral directions (i.e. perpendicular to the CNTs’ axes), which stems from the anisotropic structure of the
Autor:
Kais Dridi, Harrison D. E. Fan, Mokter Mahmud Chowdhury, Alireza Nojeh, Oleksandr Foyevtsov, Kevin Voon, George A. Sawatzky, Pinder Dosanjh, Mike Chang
Publikováno v:
2018 31st International Vacuum Nanoelectronics Conference (IVNC).
Carbon nanotube forests have great potential as efficient thermionic electron emitters due to a highly localized optical heating effect (“Heat Trap”). In past experiments, we observed a rapid decay in the emission current. In this work, we demons
Publikováno v:
2017 30th International Vacuum Nanoelectronics Conference (IVNC).
Nanostructured thermionic energy converters may offer substantial advantages over traditional devices by reducing system complexity and requirements. However, they still face similar fundamental challenges, such as anode collection efficiency and the
Publikováno v:
2016 29th International Vacuum Nanoelectronics Conference (IVNC).
Carbon nanotube (CNT) forests show great promise for efficient heat-to-electricity conversion due to their ability to confine heat to a localized area. In this work, we investigate CNT forest density as a possible factor in further optimizing their e