Model organic photovoltaics (OPVs) in steady state, transient, and frequency domains with advanced physical realism. OghmaNano enables you to go far beyond equivalent circuits, offering a full drift-diffusion framework combined with powerful optical solvers tailored to thin-film devices. This lets you directly compare simulation with experiment — not just fit curves.
Whether you're designing a tandem OPV, testing a new donor–acceptor pair, or interpreting PL/EL data, OghmaNano provides the flexibility and physical fidelity to guide your research.
🚀 What You Can Do
Build your stack: Quickly define donor, acceptor, interlayer, and electrode materials — all spatially resolved.
Tune device physics: Set exciton diffusion length, carrier mobilities, bimolecular or trap-assisted recombination, and contact types.
Extract key parameters: Match JV, CE, or TPV measurements to extract mobility, lifetime, recombination coefficients, and more.
Visualize internal physics: View electric fields, carrier densities, potential profiles, recombination maps, and quasi-Fermi levels in 1D, 2D, or 3D.
Model light management: Use optical models (e.g., transfer matrix or FDTD-based absorption) to predict generation profiles across multilayer stacks.
Simulate spectra: Predict photoluminescence (PL) and electroluminescence (EL) spectra from first principles using full carrier dynamics and emission rates.
Understand loss mechanisms: Identify where losses occur - e.g., contact resistance, trap states, energetic disorder — and what limits your fill factor or open-circuit voltage.
Optimize without fabrication: Perform full device sweeps in silico before touching the glovebox — saving time, materials, and effort.
🧪 Real-Device-Calibrated Examples
The simulator comes with pre-built, calibrated examples of OPV cells from the literature — including BHJ (bulk heterojunction), planar heterojunction, and tandem structures. These examples are ready to run, modify, and extend with your own materials or stack.
Load a P3HT:PCBM or PM6:Y6 device in 3D with realistic absorption, recombination, and contact models.
Edit material parameters or stack geometry via Lua scripts or the graphical doping editor.
Overlay your experimental data to compare and fine-tune models quickly.
🔧 Designed for Experimentalists and Modelers
Whether you’re a graduate student trying to understand your JV curves, or a device physicist building tandem stacks, OghmaNano gives you deep insight into the internal workings of your OPV. Use it to teach, publish, or prototype — all for free.
