SnTe nanocrystals: A new example of narrow-gap semiconductor quantum dots

Maksym V. Kovalenko, Wolfgang Heiss, Elena V. Shevchenko, Jong Soo Lee, Harald Schwinghammer, A. Paul Alivisatos, Dmitri V. Talapin

Research output: Contribution to journalArticlepeer-review

168 Scopus citations

Abstract

A solution-phase synthesis of monodisperse SnTe nanocrystals via the reaction of bis[bis(trimethylsilyl)amino]tin(II) with trioctylphosphine telluride in oleylamine is demonstrated. The obtained SnTe nanocrystals are single-crystalline particles with a cubic rock-salt crystal structure. The size of the SnTe nanocrystals can be precisely tuned in the range of 4.5-15 nm by tailoring the reaction temperature and stabilizer concentration. These SnTe nanocrystals exhibit size-tunable band gap energies of 0.38-0.8 eV. The narrow size-distributions allow assembling SnTe nanocrystals into 3-dimensional superlattices.

Original languageEnglish
Pages (from-to)11354-11355
Number of pages2
JournalJournal of the American Chemical Society
Volume129
Issue number37
DOIs
StatePublished - 19 Sep 2007

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