Mathematical Models for Nano Science - Politecnico di Milano

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Summary Past activity • Bulk heterojunction organic solar cell model • Bilayer organic solar cell model Present and future activity • SuperC model • Artificial retina model
Bulk Heterojunction solar cells light current at contacts absorbption radiative recombination drift / diffusion bulk excitons diffusion bulk free carriers interface excitons partial dissociation geminate recombination pairs drift / diffusion recombination interface free carriers recombination to triplet excitons dissociation L Γ N Γ C hν Ω Γ A Γ N Assumptions • Homogeneity. Blend as a single material with averaged properties • Immediate transition exciton → charge transfer state • Einstein relation Unknowns: X , n, p and ϕ
Page 1 and 2: Mathematical Models for Nano Scienc
Page 3: Math Research Group Prof. Riccardo
Page 7 and 8: • Hole equation Model equations -
Page 9 and 10: Spatial discretization Triangulatio
Page 11 and 12: Numerical results - 1 • Ideal BHJ
Page 13 and 14: Bilayer solar cells light current a
Page 15 and 16: Model equations - 2 • Geminate pa
Page 17 and 18: Interface lumping - 1 • Device th
Page 19 and 20: Numerical results - 1 Ω p Γ Γ C
Page 21 and 22: Numerical results - 3 • Very comp
Page 23 and 24: Activity at CNST - SuperC • Photo

Mathematical Models for Nano Science - Politecnico di Milano

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