Effects of non-stoichiometry on the lattice constant of semiconductor nanocrystals: CdSe and GaAs.
We have examined the role of different terminating geometries in modifying the equilibrium lattice constant of semiconductor nanocrystals. In the case of binary semiconductors, the different criteria adopted for terminating the nanocluster lead to different surface stoichiometry. As a consequence similar sized nanocrystals are found to have different equilibrium lattice constants.
Cherian
Roby
R
Unit for Nanoscience and Technology and Advanced Materials Research Unit, S. N. Bose National Centre for Basic Sciences, JD Block, Sector Ill, Salt Lake, Kolkata 700098, India.
Mahadevan
Priya
P