Title:
Semi-classical to quantum transport and it’s LED simulation application
Semi-classical to quantum transport and it’s LED simulation application
Time:
09/25 (Sat.) 5 pm PDT, 6 pm MDT, 7 pm CDT, 8 pm EDT
09/26 (Sun.) 2 am CEST, 8 am Taiwan
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09/25 (Sat.) 5 pm PDT, 6 pm MDT, 7 pm CDT, 8 pm EDT
09/26 (Sun.) 2 am CEST, 8 am Taiwan
Time zone conversion tool
Keywords:
electrical engineering, Quantum transport, NEGF, NEGF, quantum transport, drift-diffusion
electrical engineering, Quantum transport, NEGF, NEGF, quantum transport, drift-diffusion
Abstract:
"State-of-the-art industrial semiconductor device modeling is based on highly efficient Drift-Diffusion (DD) models that include some quantum corrections for nanodevices. In contrast, latest academic quantum transport models are based on the non-equilibrium Green's function (NEGF) method that cover all coherent and incoherent quantum effects consistently.Carrier recombination and generation in optoelectronic nanodevices represent an immense numerical challenge when solved within NEGF. In this work, the numerically efficient Büttiker-probe model is expanded to include electron-hole recombination and generation in the NEGF framework. Benchmarks of the new multiple-particle Büttiker probe method against state-of-the-art quantum-corrected DD models show quantitative agreements except in cases of pronounced tunneling and interference effects."
"State-of-the-art industrial semiconductor device modeling is based on highly efficient Drift-Diffusion (DD) models that include some quantum corrections for nanodevices. In contrast, latest academic quantum transport models are based on the non-equilibrium Green's function (NEGF) method that cover all coherent and incoherent quantum effects consistently.Carrier recombination and generation in optoelectronic nanodevices represent an immense numerical challenge when solved within NEGF. In this work, the numerically efficient Büttiker-probe model is expanded to include electron-hole recombination and generation in the NEGF framework. Benchmarks of the new multiple-particle Büttiker probe method against state-of-the-art quantum-corrected DD models show quantitative agreements except in cases of pronounced tunneling and interference effects."
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