NMR study of InP quantum dots: Surface structure and size effects
Journal Article
·
· Journal of Chemical Physics
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
We report the results of {sup 31}P NMR measurements on trioctylphosphine oxide (TOPO) passivated InP quantum dots. The spectra show distinct surface-capping sites, implying a manifold of crystal{endash}ligand bonding configurations. Two In {sup 31}P surface components are resolved and related to different electronic surroundings. With decreasing particle size the In {sup 31}P core resonance reveals an increasing upfield chemical shift related to the overall size dependence of the InP electronic structure. {copyright} {ital 1999 American Institute of Physics.}
- OSTI ID:
- 348145
- Journal Information:
- Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 18 Vol. 110; ISSN JCPSA6; ISSN 0021-9606
- Country of Publication:
- United States
- Language:
- English
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