A Physics-Based Compact Model for the Static Drain Current in Heterojunction Barrier CNTFETs-Part I: Barrier-Related Current
A physics-based compact analytical formulation for the static drain current in heterojunction barrier (HB) carbon nanotube field-effect transistors is derived by incorporating the tunneling current through the barriers. This enables to capture the distinct curve shapes of device characteristics as c...
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| Veröffentlicht in: | IEEE transactions on electron devices 2024-01, Vol.71 (1), p.23-29 |
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| container_title | IEEE transactions on electron devices |
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| creator | Annamalai, Manojkumar Schroter, Michael |
| description | A physics-based compact analytical formulation for the static drain current in heterojunction barrier (HB) carbon nanotube field-effect transistors is derived by incorporating the tunneling current through the barriers. This enables to capture the distinct curve shapes of device characteristics as compared to devices without HBs. For solving the Landauer integral a Gaussian-shaped surrogate function for the energy-dependent integrand is utilized. Moreover, the impact of multiple reflections between source and drain barrier is accounted for. The new formulation includes a smooth transition from thermionic emission-based transport in the subthreshold region to tunneling-dominated transport in the above-threshold regime. |
| doi_str_mv | 10.1109/TED.2023.3327030 |
| format | Article |
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| ispartof | IEEE transactions on electron devices, 2024-01, Vol.71 (1), p.23-29 |
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| language | eng |
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| source | IEEE Electronic Library Online |
| subjects | Carbon nanotube field-effect transistor (CNTFET) Carbon nanotubes CNTFETs compact modeling drain current modeling Electron tubes Field effect transistors Heterojunctions Integrated circuit modeling Logic gates Mathematical models multiple barrier scattering Radio frequency Semiconductor devices Thermionic emission Tunneling |
| title | A Physics-Based Compact Model for the Static Drain Current in Heterojunction Barrier CNTFETs-Part I: Barrier-Related Current |
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