our modelers have developed a tool that simulates solar-fuels generators

A basic solar-fuel generator contains photoabsorbers, electrocatalysts, a membrane separator, and electrolyte. Multiple photoelectrochemical processes take place during the operation of a solar-fuel generator: (i) light absorption in the semiconductor; (ii) charge generation, separation, and transport in the semiconductor; (iii) interfacial charge transfer between the semiconductor and the catalyst; (iv) catalytic fuel-forming reaction at the catalysts; and (v) ionic and gas transport between the cathode and anode chamber. These processes are intimately coupled with each other and produce a single rate of reaction.

The JCAP Solar-Fuel Generator Simulation Tool is a web-based application for evaluating the performance of proof-of-concept solar-fuels prototypes. The tool provides for quantitative analysis of cell operation and gives users options for exploring various aspects of realistic solar-fuel devices. Users can input geometric parameters for the cell, materials properties of the individual components, and operational conditions, and the simulation tool then outputs key figures of merit for cell performance, including solar-to-hydrogen (STH) conversion efficiency, maximum resistive loss, and the two-dimensional current-density distribution along the electrode.

To use the model, input your custom parameters using the schematic as a guide for the geometric dimensions. After clicking on the submit button, the simulation tool will provide a graphical representations of the results.

The current version of the JCAP Solar-Fuel Generator Simulation Tool is in "beta" testing.  Please email collaborate@solarfuelshub.org with comments or suggestions for improvement. Additional modeling parameters are currently being added and will be available soon.