n = 0,1,2 . . . ) for which SHG from the underlying substrate-oxide interface vanishes (open squares, Fig. la). The latter, on the other hand, dominates in P-inlP-out configuration (open cirdes, Fig. la). This allows the Si NC and Si substrate spectra to be distinguished and compared. The results show the normalized NC spectrum (filled circles, Fig. la) has a prominent peak at 2 hv = 3.26 el! nearly independent of NC diameter for 5 < d < I2 nm (Fig. Ib), whereas the sub-QMJ 3:45 p m 5 3 0 pm
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.