Multiple wurtzite twinning in CdTe nanocrystals induced by methylphosphonic acid (Articolo in rivista)

Type
Label
  • Multiple wurtzite twinning in CdTe nanocrystals induced by methylphosphonic acid (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/ja054893c (literal)
Alternative label
  • Carbone, L; Kudera, S; Carlino, E; Parak, WJ; Giannini, C; Cingolani, R; Manna, L (2006)
    Multiple wurtzite twinning in CdTe nanocrystals induced by methylphosphonic acid
    in Journal of the American Chemical Society (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Carbone, L; Kudera, S; Carlino, E; Parak, WJ; Giannini, C; Cingolani, R; Manna, L (literal)
Pagina inizio
  • 748 (literal)
Pagina fine
  • 755 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 128 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 3 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Ist Nazl Fis Nucl, CNR, Natl Nanotechnol Lab, I-73100 Lecce, Italy; Univ Munich, Ctr Nanosci, D-8000 Munich, Germany; CNR, INFM, TASC, Nat Lab, I-34012 Trieste, Italy; CNR, Ist Cristallog, I-70126 Bari, Italy (literal)
Titolo
  • Multiple wurtzite twinning in CdTe nanocrystals induced by methylphosphonic acid (literal)
Abstract
  • Branching in semiconductor nanocrystals, which leads to tetrapods and to more complex architectures, is the subject of intensive investigation. Here we support the model according to which branching in CdTe nanocrystals is driven by the formation of multiple wurtzite twins. This is in contrast to previous models for this material. We found that twinning, as well as anisotropic growth, can be triggered by the presence of suitable molecules, such as for instance methylphosphonic acid. In the case of CdTe nanocrystals, we designed a robust growth scheme in which the variation of a single parameter (the concentration of methylphosphonic acid in solution) leads to the controlled formation of nanocrystals with shapes ranging from spheres to anisotropic structures with varying level of branching, as both twinning and anisotropic growth are progressively favored. We believe that these concepts can be extended to other nanocrystal systems. (literal)
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