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Lookup NU author(s): Professor Patrick Briddon
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We have observed the donor (Ec - 0.22 eV) and acceptor (Ec - 0.16 eV) levels related to hydrogen-carbon complexes in silicon. The donor level is only detected at low temperatures after proton implantation. This hydrogen-carbon complex irreversibly reconfigures at temperatures above 225 K to a configuration characterized by the acceptor level, which is stable up to room temperature. The same acceptor level is also observed after atomic hydrogen diffusion. We have used Laplace transform deep level transient spectroscopy (DLTS) to show the influence of uniaxial stress on the electron emission process and the effect of the stress-induced alignment for the acceptor state. The pattern of the Laplace DLTS peak splittings indicate a trigonal symmetry of the defect. First principles calculations were carried out on the hydrogen-carbon defects with a view of determining their electrical levels and stress response for comparison with the experimental results. © 2001 Elsevier Science B.V. All rights reserved.
Author(s): Andersen O, Dobaczewski L, Peaker AR, Bonde Nielsen K, Hourahine B, Jones R, Briddon PR, Oberg S
Publication type: Article
Publication status: Published
Journal: Physica B: Condensed Matter
Year: 2001
Volume: 308-310
Pages: 139-142
ISSN (print): 1098-0121
ISSN (electronic): 1550-235X
Publisher: American Physical Society
URL: http://dx.doi.org/10.1016/S0921-4526(01)00672-X
DOI: 10.1016/S0921-4526(01)00672-X
Notes: International Conference on Defects in Semiconductors
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