4. nextnano.NEGF

The nextnano.NEGF tool is designed for accurate quantum simulations of semiconducting devices using the Non-Equilibrium Green Functions (NEGF) formalism. It has been originally developed to simulate electron dynamics and gain in quantum cascade lasers (QCLs) and superlattices. It can also be applied to infrared detectors such as quantum well infrared detectors (QWIPs) and quantum cascade detectors (QCDs), as well as transport in resonant tunneling diodes (RTDs). It is progressively extended to further applications such as interband devices.

Note

Check out publications by customers to discover quantitative insights to electron dynamics that the software has provided.

• 4.1. Overview
  • Presentation
  • Software Lineup
  • First steps
• 4.2. Physical models
  • NEGF formalism
  • Electronic band structure
  • Green’s functions
  • Scattering mechanisms
  • Electron temperature
  • Optical gain/absorption spectrum
  • Photon-assisted transport
  • Wall plug efficiency
• 4.3. Material Database
• 4.4. Tutorials
  • THz QCLs
  • Mid-IR QCLs
  • — DEV — AlGaAs/GaAs resonant tunneling diode
  • — DEV — Gain enhancement in interband cascade lasers by carrier-rebalancing under quasi-equilibrium conditions
• 4.5. Keywords
  • Temperature
  • Bias{ }
  • SweepParameters{ }
  • Equilibrium{ }
  • Crystal{ }
  • Contacts{ }
  • Hybrid{ }
  • Materials{ }
  • OverwriteMaterialdatabase{ }
  • Structure{ }
  • Scattering{ }
  • Poisson
  • LateralDiscretization{ }
  • SimulationParameter{ }
  • Output{ }
  • Gain{ }
  • SurfaceRoughness{ }
  • EMfield{ }
• 4.6. Input Syntax
• 4.7. Simulation Output
  • Overview
  • Init_Electron_Modes folder
• 4.8. Command Line
• 4.9. Release Notes
  • Upcoming changes
  • 2024-09-16
  • 2024-07-25
  • 2024-06-21
  • 2024-05-23
  • 2024-03-14
  • 2023-12-01
  • 2023-05-25
  • 2023-02-22
• 4.10. FAQs
  • Features and Functionalities
  • Error Messages
  • Problems and Limitations
• 4.11. Release Notes (Classic)
  • 2024-01-17
  • 2022-06-13
  • 2022-04-29
  • 2022-03-14
• 4.12. FAQs (Classic)
  • Features and Functionalities
  • Error Messages
  • Problems and Limitations

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Last update: 31/10/2024