Synthesis of vulcanite (CuTe) and metastable Cu1.5Te nanocrystals using a dialkyl ditelluride precursor

Evan H. Robinson, Kaelyn M. Dwyer, Alexandra C. Koziel, Ahmed Y. Nuriye, Janet E. MacDonald

Research output: Contribution to journalArticlepeer-review

Abstract

This study demonstrates that a dialkyl ditelluride reagent can produce metastable and difficult-to-achieve metal telluride phases in nanocrystal syntheses. Using didodecyl ditelluride and without the need for phosphine precursors, nanocubes of the pseudo-cubic phase (Cu1.5Te) were synthesized at the moderate temperature of 135 °C. At the higher temperature of 155 °C, 2-D nanosheets of vulcanite (CuTe) resulted, a nanomaterial in a phase that has not been previously achieved through thermal decomposition methods. Materials were characterized with TEM, powder XRD and UV-Vis-NIR absorbance spectroscopy.

Original languageEnglish (US)
Pages (from-to)23036-23041
Number of pages6
JournalNanoscale
Volume12
Issue number45
DOIs
StatePublished - Dec 7 2020

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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