Size dependence of the solid-solid phase transition in CdSe nanocrystals

  • Sarah H. Tolbert
  • A. Paul Alivisatos


High pressure optical absorption spectra are presented for CdSe nanocrystals as a function of size. The spectra show a transition to a high pressure Rock Salt type phase at pressure greatly elevated from the bulk. The size dependence of the transition pressure can be explained in part by an increased surface tension in the Rock Salt phase relative to the low pressure tetrahedral phase.


68.35.Md 36.40.+d 64.60.-i 62.50.+p 


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Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • Sarah H. Tolbert
    • 1
  • A. Paul Alivisatos
    • 1
  1. 1.Department of ChemistryUniversity of California at BerkeleyBerkeley

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