Simulate organic/Perovskite, Solar Cells, OFETs, and OLEDs!

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Organic Solar cell simulation
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Ray tracing in OLED
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OFET simulation

Simulating a single JV curve in the light and dark

Performing optical simulations with gpvdm.

Simulating CELIV transients with gpvdm.

Use the power of simulation to understand your experimental data. Gpvdm is a cross-platform opto-electronic device simulation tool. It can simulate organic solar cells, OFET, OLEDs, Perovskite solar cells, and many other classes of devices. It contains both electrical model and optical models to produce accurate and predictive device simulations. Features:

Take your research to new levels by combining experiment and simulation.

Download for windows    


The model can simulate:

The model makes it easy to study the influence of material parameters such as mobility, energetic disorder, doping and recombination on device performance. All internal device parameters are easily accessible through the graphical interface .

Technical details

The model solves the device equations in steady state or time domain, in 1D or in 2D. Specifically, the model solves both electron and hole drift-diffusion, and carrier continuity equations in position space to describe the movement of charge within the device. The model also solves Poisson's equation to calculate the internal electrostatic potential. Recombination and carrier trapping are described within the model using a Shockley-Read-Hall (SRH) formalism, the distribution of trap sates can be arbitrarily defined. A fuller description of the model can be found in the here, in the associated publications and in the manual.

High quality solar cell simulation tools for all

Solar cell technology will only get better if scientists and engineers understand how their devices work and how they can be improved. A good way of gaining this insight is through simulation. I have therefore publicly released gpvdm, as I would like as many people as possible across the world to have access to good solar cell modeling tools. To further this aim, I also released a version of gpvdm compiled for the Raspberry PI (a low cost $35 computer), so anyone with even the most limited resources can start simulating and understanding light harvesting devices.