nextnano Bundle 2026: Semiconductor Nanodevice Simulation Software

nextnano Bundle 2026 is a comprehensive software suite for modeling electronic and optoelectronic semiconductor nanodevices, developed by nextnano GmbH, a spin-off from the Walter Schottky Institute of the Technische Universität München . The Bundle combines the capabilities of both the nextnano++ package and the nextnano.NEGF package, providing a complete TCAD environment for quantum device simulation .

The 2026 iteration is a major annual release, part of the 2026.02 version identified in reference sources . It builds on the foundation of the bundle, which is characterized by high performance, short runtimes, and a Python API .

Key Features

Comprehensive Tool Suite

The bundle includes multiple simulation engines :

  • nextnano++: The primary engine featuring a self-consistent multi-band k.p Schrödinger-Poisson-Current solver for 1D, 2D, and 3D simulations .

  • nextnano.NEGF: A dedicated tool utilizing Non-Equilibrium Green Functions (NEGF) for modeling quantum transport in planar structures, particularly for Quantum Cascade Lasers (QCLs) .

  • nextnano³: The predecessor to nextnano++, which still offers unique features not available elsewhere, such as graphene and electrolyte materials .

  • nextnano.MSB: A simplified, efficient version of the NEGF method (Multi-Scattering Büttiker) for realistic quantum transport calculations .

Workflow Management & Visualization

  • nextnanomat: A graphical user interface to manage the workflow, visualize simulation results, and execute jobs. It acts as the central hub for editing input files, running simulations, and processing output .

  • nextnanopy: An open-source Python package for automating simulations, post-processing data, generating publication-quality figures, and integrating with other tools .