Characteristics of rare-earth element erbium implanted in silicon

Abstract
Rare‐earth element erbium implanted into silicon was studied by photoluminescence and Rutherford backscattering analysis. Two sets of luminescent bands related to the weakly crystal field split spin‐orbit levels 4I13/24I15/2 of Er 3+ (4f 11) at different lattice sites having different symmetries were observed.