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Donor deactivation at high doping limit: Donor pair and impurity band model

Lookup NU author(s): Professor Nick Cowern


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We present a donor deactivation model at high doping limit. The limitation of the existing activation model is discussed and a solution is proposed. In the new model, the impurity band model is combined with the ab initio based LMC simulation to explain the saturation behaviour of active donor concentration experimentally observed. The developed impurity band model can reproduce the activation level correctly and improves our understanding of charge carrier distribution in the impurity band. It also provides a new aspect of the behaviour of the Fermi level (EF) at high doping limit. As a result, incorporating the new models into the existing diffusion and activation model improves the predictability of donor activation level.

Publication metadata

Author(s): Ahn C, Choi W, Kubotera H, Kayama Y, Schmidt A, Lee K, Park Y, Cowern NEB

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: SISPAD 2013

Year of Conference: 2013

Pages: 37-40

ISSN: 1946-1569

Publisher: IEEE


DOI: 10.1109/SISPAD.2013.6650568

Library holdings: Search Newcastle University Library for this item

ISBN: 9781467357333