Sending report ...Resonant Tunneling Diode Simulator
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Usage Stats Overall Period: Updated 19 Jul, 2008 Users: 777 Jobs: 24211 Avg. exec. time: 5 secs Reviews & Citations Google/IEEE: updated 24 Apr, 2008 Avg. Review: Citations: 3
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Available Versions
- 1.1 (published)
- 1.0 (unpublished)
| Version | 1.1 - published on 05 Dec, 2007 |
|---|---|
| Contributor(s) | Michael McLennan Purdue University, West Lafayette |
| At a glance | Simulate 1D resonant tunneling devices and other heterostructures via ballistic quantum transport. |
| Screenshots | |
| Description | Heterostructure devices have thin layers of alternating materials. Some layers act as barriers to electron flow, but if the layers are thin enough, electrons can "tunnel" through them. If two or more barriers are placed closely together, electrons can reflect between the barriers and resonate at particular energies, allowing complete transmission through the barriers, as if they were not there! This gives rise to negative differential resistance--current that goes down as voltage goes up--an interesting behavior that can be harnessed to form new devices. Use this tool to explore the effects of tunneling through one or more material layers. Change the doping density, material properties, and layer thicknesses, and examine transmission coefficients and current-voltage relationships. |
| Powered by | SEQUAL 2.1 is a device simulation program that computes Semiconductor Electrostatics by Quantum Analysis. Given a device, SEQUAL will compute the electron density and the current density using a quantum mechanical, collisionless description of electron propagation. SEQUAL is based on the formulation of M. Cahay, M. McLennan, S. Datta, and M. S. Lundstrom, "Importance of Space-Charge Effects in Resonant Tunneling Devices," Applied Physics Letters, vol. 50 (10), pp. 612-614, 1987. |
| Cite this work | If you reference this work in a publication, please cite as follows:
In addition, we would appreciate it if you would add the following acknowledgment to your publication:
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| Type | Tools |
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Citations
The following are publications that have cited this resource, separated by their affiliation to the NCN.
Non-affiliated authors
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Akinwande, D.; Wong, H.-S.P. (2007), "A Composite Circuit Model for NDR Devices in Random Access Memory Cells," IEEE Transactions on Electron Devices, IEEE, 54, 4: pg. 776-783, Stanford University, 04. 1557-9646. (DOI: 10.1109/TED.2007.892356).
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Kamoua, R.; Kim, D.; Roach, G. (2006), "Incorporating Nanoscale System Design into the Undergraduate Electrical and Computer Engineering Curriculum," 9th International Conference on Engineering Education, San Juan, PR, 07.
Affiliated authors
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Klimeck, G. (2007), "NanoHUB.org Tutorial: Education Simulation Tools," Nano/Micro Engineered and Molecular Systems, 2007. NEMS '07. 2nd IEEE International Conference on: pg. nil41-nil41, 01. 1-4244-0610-2. (DOI: 10.1109/NEMS.2007.351992).
Akinwande, D.; Wong, H.-S.P. (2007), "A Composite Circuit Model for NDR Devices in Random Access Memory Cells," IEEE Transactions on Electron Devices, IEEE, 54, 4: pg. 776-783, Stanford University, 04. 1557-9646. (DOI: 10.1109/TED.2007.892356).
Kamoua, R.; Kim, D.; Roach, G. (2006), "Incorporating Nanoscale System Design into the Undergraduate Electrical and Computer Engineering Curriculum," 9th International Conference on Engineering Education, San Juan, PR, 07.
Affiliated authors
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Klimeck, G. (2007), "NanoHUB.org Tutorial: Education Simulation Tools," Nano/Micro Engineered and Molecular Systems, 2007. NEMS '07. 2nd IEEE International Conference on: pg. nil41-nil41, 01. 1-4244-0610-2. (DOI: 10.1109/NEMS.2007.351992).
Reviews
The following are reviews of this resource from other site members.
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Posted on 18 April, 2007 by H.-S. Philip Wong
Last year, we used the RTD tool on the nanohub for our Nanoelectronics class. I assigned a mid-term exam based on the RTD analysis and one of the students took it further and wrote a paper on the subject (nanoHUB is referenced prominently in the paper). It can be one of the many success stories of the nanoHUB one can tell the NSF about.
Thank you for your help on the RTD tool.
H.-S. Philip Wong
Center for Integrated Systems,
Stanford University, Stanford, -
Posted on 19 October, 2005 by Anonymous
Very nice educational tool
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