Main window — advanced 3D interface to efficiently simulate devices.
Advanced transfer matrix methods to simulate light propagation.
Light current–voltage curves.
OghmaNano contains all the physical models required to simulate
perovskite solar cells,
including a dedicated mobile-ion solver. Unlike simplified DC-only approaches, OghmaNano performs
full time-domain simulations that replicate real measurement conditions — enabling you to explore
dynamic effects such as hysteresis, ion migration, degradation, and transient response.
Optical generation can be computed with the Transfer Matrix Method (TMM) for thin films, or with
ray tracing for scattering/textured stacks. Depth-resolved generation profiles are automatically
coupled into the electrical drift–diffusion solver with Poisson’s equation, trap states, and realistic contacts.
🚀 What You Can Do
Mobile ion dynamics: Simulate ionic drift/diffusion, field screening, and ionic double-layer formation under bias and illumination.
Hysteresis under realistic sweeps: Run forward/reverse J–V scans with control over sweep rate, pre-bias, delay, and scan direction.
Traps & interfaces: Include bulk and interface-localized trap distributions to study trap-assisted (SRH) recombination and interfacial recombination velocities.
Steady-state, transient, and AC: Simulate DC J–V, TPV/TPC, small-signal frequency response, and light/dark transients.
Optics to carriers: Use TMM or ray tracing to compute absorption/generation in multilayer stacks; feed directly into transport.
Architectures: Model planar, mesoporous, and tandem perovskite cells with selective contacts and asymmetric interfaces.
Parameter extraction: Fit J–V, EQE, and Suns–VOC data to extract mobility, trap density, diffusion length, and recombination coefficients.
Scripting & sweeps: Use the integrated Lua engine to automate parameter sweeps, stability tests, and batch analyses.
OghmaNano includes pre-built, calibrated examples of planar, mesoporous, and tandem perovskite solar cells.
You can reproduce published results, modify parameters, or run time-domain hysteresis sweeps to match your own data.
Load a planar or mesoporous stack and define ionic species, trap distributions, and contact selectivity.
Overlay experimental J–V, EQE, or Suns–VOC data for parameter extraction.
Explore hysteresis dependence on scan rate, pre-bias, and mobile ion mobility.
🔧 Designed for Experimentalists and Modelers
Whether you’re investigating ion migration, hysteresis, or recombination pathways,
OghmaNano provides detailed insight into the internal physics of perovskite devices.
It’s ideal for teaching, research, and prototyping — all for free.
