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 .

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