Lithium-gold-related photoluminescence in n-type silicon

H. P. Gislason*, S. Kristjansson, E. O. Sveinbjornsson

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

We report two new photoluminescence (PL) spectra in silicon co-doped with gold and lithium. A zero phonon line at 1122.3 meV that correlates in intensity with the concentration of gold acceptors passivated by lithium is attributed to an exciton bound to an electrically inactive complex of Au and Li. A spectrum with a zero-phonon line structure with two main components at 765.4 and 766.4 meV shows a correlation with the concentration of an acceptor with a level at Ev + 0.76 eV previously associated with gold and at least one lithium atom. This PL spectrum could be a recombination from shallow excited states to the ground state of this deep acceptor. We conclude that the Au-Li related defects reported here are different from two recently reported paramagnetic Au-Li complexes.

Original languageEnglish
Pages (from-to)695-700
Number of pages6
JournalMaterials Science Forum
Volume196-201
Issue numberpt 2
DOIs
Publication statusPublished - 1995
EventProceedings of the 1995 18th International Conference on Defects in Semiconductors, ICDS-18. Part 1 (of 4) - Sendai, Jpn
Duration: 23 Jul 199528 Jul 1995

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