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Quantum Dot Blinking Suppression

Interactive core/shell quantum-dot simulator: watch a single QD switch between bright (ON) and Auger-dark (OFF) states, then tune shell thickness, surface-trap density and excitation rate to suppress fluorescence blinking, with live on-time fraction and photon statistics.

Quantum Physics3DAdvanced60 FPS📱 Mobile-adapted⇄ 2D version

Colloidal quantum dots don't emit light steadily — a single dot randomly switches between a bright "ON" state and a dark "OFF" state, a phenomenon called fluorescence intermittency or blinking. This simulator models the accepted mechanism: Auger-assisted photoionization traps a carrier at the surface, charging the dot into a non-radiative trion state until it neutralizes again. Grow a thicker CdS/ZnS shell around the core, reduce surface trap density, or dial back the excitation rate, and watch the ionization rate drop, the on-time fraction climb toward 100%, and the intensity trace flatten into steady emission — exactly the strategy real "giant-shell" non-blinking quantum dots use for single-molecule imaging.

⚙ Under the hood

Watch a single core/shell quantum dot switch between a bright ON exciton state and a dark, Auger-charged OFF state, then tune shell thickness, surface trap density and excitation rate to suppress fluorescence blinking.

quantum dotsphotoluminescence blinkingAuger recombinationcore-shell nanocrystalphotostabilitysurface passivation

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