NMR study of InP quantum dots: Surface structure and size effects

TitleNMR study of InP quantum dots: Surface structure and size effects
Publication TypeJournal Article
Year of Publication1999
AuthorsTomaselli M., Yarger J.L, Bruchez M., Havlin R.H, deGraw D., Pines A, Alivisatos A.P
JournalJournal of Chemical Physics
Volume110
Issue18
Pagination8861-8864
Date PublishedMay 8
ISBN Number0021-9606
Accession NumberWOS:000080073200002
Keywordsclusters
Abstract

We report the results of P-31 NMR measurements on trioctylphosphine oxide (TOPO) passivated InP quantum dots. The spectra show distinct surface-capping sites, implying a manifold of crystal-ligand bonding configurations. Two In P-31 surface components are resolved and related to different electronic surroundings. With decreasing particle size the In P-31 core resonance reveals an increasing upfield chemical shift related to the overall size dependence of the InP electronic structure. (C) 1999 American Institute of Physics. [S0021-9606(99)70718-X].

URL<Go to ISI>://WOS:000080073200002
DOI10.1063/1.478858
Short TitleNMR study of InP quantum dots: Surface structure and size effects
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