6533b7d4fe1ef96bd1262838

RESEARCH PRODUCT

Optimization of impurity profile for p-n junction in heterostructures

Bernardo SpagnoloE. L. Pankratov

subject

Diffusion equationMaterials scienceDopantCondensed matter physicsEpitaxial layerAnnealing (metallurgy)radiation defectsHeterojunctionCondensed Matter::Mesoscopic Systems and Quantum Hall EffectCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsCondensed Matter::Materials ScienceImpurityCondensed Matter::SuperconductivityHomogeneity (physics)Effective diffusion coefficientHeterojunctionp–n junctionOptimization of impurity

description

We analyze the dopant diffusion in p-n-junction in heterostructure, by solving the diffusion equation with space-varying diffusion coefficient. For a step-wise spatial distribution we find the optimum annealing time to decrease the p-n-junction thickness and to increase the homogeneity of impurity concentration in p or n regions.

10.1140/epjb/e2005-00233-1http://hdl.handle.net/10447/11014