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ESR spectra of (a) P doped and (b) B doped Si-ncs at . Si concentration is fixed at . P and B concentrations are changed from and from , respectively. ESR spectra of sputter-deposited and B doped are also shown as references on the upper part of (b). For better comparison, the spectra are scaled by the indicated multiplication factors.
ESR spectra of P and B codoped Si-ncs at . Si and P concentrations are fixed at around 40.5 and , respectively. B concentration is changed from . (b) ESR signal intensity and (c) width as a function of temperature. Dotted curves in (b) are guides for the eyes.
(a) ESR signal intensity , (b) width , and (c) PL intensity as a function of B concentration. Inset is a PL spectrum for the sample with the B concentration of .
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