Electrodeposited quantum dots. 6. Epitaxial size control in Cd(Se,Te) nanocrystals on {111} gold

Yuval Golan, Anat Hatzor, John L. Hutchison, Israel Rubinstein, Gary Hodes

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Size control in epitaxial Cd(Se,Te) quantum dots (QDs) electrochemically deposited on {111} textured Au is achieved by mismatch tuning. The formation of QDs as a form of relaxation of heteroepitaxial strain energy is demonstrated. The increased lattice parameter resulting from incorporation of small amounts of Te in the CdSe lattice leads to reduced mismatch-induced strain energy and therefore larger QD size. While the QD interatomic spacings at the interface are shown to be unchanged due to the heteroepitaxy with the Au substrate, the perpendicular QD d-spacings (along the c-axis) strongly increase with increasing Te content due to strain relaxation.

Original languageEnglish
Pages (from-to)303-313
Number of pages11
JournalIsrael Journal of Chemistry
Volume37
Issue number2-3
DOIs
StatePublished - 1 Jan 1997
Externally publishedYes

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