Nanoelectronics

Moore's Law and the Future of Solid-State Electronics

Double Gate MOSFET

Introduction

As silicon transistors are getting smaller and smaller, eventually quantum mechanical effects will dominate.
More information: Moore's law (Wikipedia)


Triple Gate MOSFET

Tutorials

nextnano³ tutorials (deprecated website)


AlGaAs/GaAs heterostructure

Schrödinger-Poisson

Schrödinger-Poisson - A comparison to the tutorial file of Greg Snider's code (AlGaAs/GaAs HEMT)

What you can learn:
  • heterostructure, doping, 2DEG, AlGaAs/GaAs, user-defined function for the doping profile
  • self-consistent Schrödinger-Poisson equation

HEMT

HEMT

InGaAs/AlInAs HEMT structure (High Electron Mobility Transistor)

What you can learn:
  • heterostructure, doping, 2DEG, InGaAs/AlInAs
  • strain equation, self-consistent Schrödinger-Poisson equation

Inverted HEMT

Inverted HEMT

AlGaAs/GaAs inverted HEMT structure (High Electron Mobility Transistor) - no online documentation available

What you can learn:
  • heterostructure, doping, 2DEG, AlGaAs/GaAs, variables in input file
  • self-consistent Schrödinger-Poisson equation

Si/SiGe MODQW

Si/SiGe modulation doped quantum well

Si/SiGe MODQW (Modulation Doped Quantum Well)

What you can learn:
  • heterostructure, doping, 2DEG, Si/SiGe, strain, Delta band edge
  • strain equation, self-consistent Schrödinger-Poisson equation

Capacitance-Voltage (MIS)

Metal-insulator-semiconductor structure

Capacitance-Voltage curve of a “metal”-insulator-semiconductor (MIS) structure

What you can learn:
  • apply a bias
  • self-consistent Schrödinger-Poisson equation

AlGaN/GaN FET

Band structure of an AlGaN/GaN FET

- Two-dimensional electron gas in an AlGaN/GaN field effect transistor (FET)
   (nextnano++ tutorial)
- Two-dimensional electron gas in an AlGaN/GaN field effect transistor (FET)
   (nextnano¬≥ tutorial)

What you can learn:
  • wurtzite, strain, piezoelectricity, pyroelectricity, electron energy levels and wave functions, 2DEG, variables in input file
  • strain equation, self-consistent Schrödinger-Poisson equation

Ultrathin-body Double Gate FET - DG MOSFET (Double Gate Metal Oxide Semiconductor Field Effect Transistor)

Double Gate MOSFET

Double Gate MOSFET (Metal Oxide Semiconductor Field Effect Transistor)

What you can learn:
  • 2D and 3D simulations, drift-diffusion, mobility models
  • self-consistent Current-Poisson equation in 2D and 3D

Electron density

Resonant Tunneling Diode

RTD
Resonant Tunneling Diode - nextnano.MSB software
(Resonant Tunneling Diode - nextnano3 software)
I-V characteristics calculated with a nonequilibrium Green's function approach (NEGF)