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Block Copolymer Self-Assembly

Interactive 3D Ohta-Kawasaki phase-field simulator: watch a diblock copolymer melt microphase-separate into lamellae, cylinders or spheres as you tune the A-block volume fraction, segregation strength and domain-spacing coefficient — the physics behind directed self-assembly nanolithography.

Nanotechnology & MEMS3DAdvanced60 FPS📱 Mobile-adapted⇄ 2D version

Diblock copolymer melts spontaneously organize into nanoscale lamellae, cylinders or spheres purely from the interplay of chemical demixing and chain connectivity — no external template required. This simulator solves the Ohta–Kawasaki phase-field equation on a live 3D grid, letting you tune the A-block volume fraction, the Flory–Huggins segregation strength χN, and the long-range domain-spacing coefficient α, then watch the melt anneal in real time toward the periodic morphology those parameters predict. It is the same coarse-grained model used to engineer directed self-assembly (DSA) patterns for sub-10 nanometer semiconductor lithography.

⚙ Under the hood

Simulate a diblock copolymer melt microphase-separating into lamellae, cylinders or spheres using the Ohta-Kawasaki phase-field model, the physics behind directed self-assembly nanolithography.

nanotechnologyself-assemblypolymer physicsphase fieldmaterials sciencelithography

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