1990
DOI: 10.1016/0022-0248(90)90246-h
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MOVPE grown InP:Yb layers using Yb(IpCp)3 as a new doping source

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Cited by 14 publications
(1 citation statement)
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“…With a detection limit for the coefficient (Y of cm", we can estimate from Dexter's formula for absorption of localized defects C331 an absolute upper limit for the optically active defect concentration of lo1* cm". SIMS investigations on these samples determined total Yb concentrations in the range of 3 x lo1' to 1.5 x 1019 cm" [34], which for several of our samples is clearly more than the upper bound to the number of optically active Yb centres. Second, since some samples with low Yb concentrations gave 4f PL signals of the same strength as those with high concentration, we conclude that only a (small?)…”
Section: Discussionmentioning
confidence: 62%
“…With a detection limit for the coefficient (Y of cm", we can estimate from Dexter's formula for absorption of localized defects C331 an absolute upper limit for the optically active defect concentration of lo1* cm". SIMS investigations on these samples determined total Yb concentrations in the range of 3 x lo1' to 1.5 x 1019 cm" [34], which for several of our samples is clearly more than the upper bound to the number of optically active Yb centres. Second, since some samples with low Yb concentrations gave 4f PL signals of the same strength as those with high concentration, we conclude that only a (small?)…”
Section: Discussionmentioning
confidence: 62%