A Simple Derivation of the Influence of the Depletion Zone on the EBIC Collection Efficiency

Mekki, Dj.; Tarento, R. J.; Tabet, Nouar

doi:10.1002/pssa.2211300215

Phys. Stat. Sol. (a)

1992

DOI: 10.1002/pssa.2211300215

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A Simple Derivation of the Influence of the Depletion Zone on the EBIC Collection Efficiency

Dj. Mekki

R. J. Tarento

Nouar Tabet

Abstract: A simple derivation of the EBIC collection efficiency is proposed to take account of the recombination in the depletion zone which is characterized by an effective recombination velocity for carriers generated in the neutral zone and an Hecht collection efficiency for carriers produced in the depleted zone. The new model is checked with experimental results and is in agreement with a rigorous model.

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1994

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Reciprocity theorem for charge collection by a surface with finite collection velocity: Application to grain boundaries

Donolato¹

1994

Journal of Applied Physics

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A proof is given of a reciprocity theorem which applies to charge collection by a semiconductor surface with finite collection velocity. The theorem leads to a boundary-value problem for the charge collection probability φ. This problem is solved by the eigenfunctions expansion method for the normal collector geometry, where the collecting surface corresponds to the edge of a nonideal junction or to a charge-collecting grain boundary. The solution thus obtained is equivalent to that found earlier by the method of images but has a much simpler form. This solution, its asymptotic approximations and low-order moments, as well as the boundary conditions for φ can find use in the determination of the surface collection/recombination velocity and minority-carrier diffusion length in a semiconductor from experimental induced current scans. The new expression for φ is used to calculate the collection efficiency profile of a charge-collecting grain boundary for a generation with finite lateral extent.

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Reciprocity theorem for charge collection by a surface with finite collection velocity: Application to grain boundaries

Donolato¹

1994

Journal of Applied Physics

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A Simple Derivation of the Influence of the Depletion Zone on the EBIC Collection Efficiency

Cited by 1 publication

References 7 publications

Reciprocity theorem for charge collection by a surface with finite collection velocity: Application to grain boundaries

Reciprocity theorem for charge collection by a surface with finite collection velocity: Application to grain boundaries

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