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Photoelectrochemical Cell: Band Bending & Hydrogen Evolution

Interactive 3D photoelectrochemical (PEC) cell: tune applied bias, light intensity, doping and semiconductor material to watch the space-charge depletion width, photocurrent, and H2/O2 bubble evolution respond via the Mott-Schottky and Gartner relations.

Energy & Thermodynamics3DAdvanced60 FPS📱 Mobile-adapted⇄ 2D version

This simulator models a photoelectrochemical (PEC) water-splitting cell: a semiconductor photoanode immersed in electrolyte next to a metal cathode, wired together in an external circuit. Choosing a photoanode material, applied bias, illumination and donor density drives a real Mott-Schottky depletion-width calculation and a Gärtner-style collected-photocurrent estimate, which in turn set the rate that hydrogen bubbles form at the cathode and oxygen bubbles form at the photoanode — visualised in 3D alongside a live band-bending diagram of the surface space-charge layer.

⚙ Under the hood

Interactive 3D photoelectrochemical cell: tune applied bias, illumination, doping and semiconductor material to see the Mott-Schottky depletion width, photocurrent and H2/O2 bubble evolution respond in real time.

photoelectrochemistryhydrogensemiconductorsolar fuelsband bendingelectrolysis

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install