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Electronic structure of divacancy-hydrogen complexes in silicon

Lookup NU author(s): Dr Jose Coutinho, Professor Patrick Briddon

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Abstract

Divacancy-hydrogen complexes (V2H and V2H2) in Si are studied by ab initio modelling using large supercells. Here we pay special attention to their electronic structure, showing that these defects produce deep carrier traps. Calculated electrical gap levels indicate that V2H2 is an acceptor, whereas V2H is amphoteric, with levels close to those of the well known divacancy. Finally our results are compared with the available data from deep level transient spectroscopy and electron paramagnetic resonance experiments.

Publication metadata

Author(s): Coutinho J, Torres VJB, Jones R, Oberg S, Briddon PR

Publication type: Article

Publication status: Published

Journal: Journal of Physics: Condensed Matter

Year: 2003

Volume: 15

Issue: 39

Pages: S2809-S2814

ISSN (print): 0953-8984

ISSN (electronic): 1361-648X

Publisher: Institute of Physics Publishing Ltd

URL: http://dx.doi.org/10.1088/0953-8984/15/39/005

DOI: 10.1088/0953-8984/15/39/005

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