High-quality Cu2 O crystals with various morphologies grown by thermal oxidation

S. Mani, J. I. Jang*, John B Ketterson, H. Y. Park

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

We present an improved preparation method for, and experimental results on, high-quality crystals of cuprous oxide (Cu2 O) grown by thermal oxidation. X-ray diffraction and low-temperature optical measurements at 2 K confirm excellent characteristics that are on par with natural-growth cuprite crystals. Synthetic Cu2 O crystals were prepared in different geometries including platelets, cylindrical wires, and spheroids. Interestingly, we observed that the oxidation of Cu wires at high temperatures leads to the formation of hollow tubules of Cu2 O. Such unconventional structures of Cu2 O could be utilized to confine excitonic matter, or serve as high-density exciton-polariton cavities.

Original languageEnglish (US)
Pages (from-to)3549-3552
Number of pages4
JournalJournal of Crystal Growth
Volume311
Issue number14
DOIs
StatePublished - Jul 1 2009

Keywords

  • A1. Crystal morphology
  • A2. Thermal oxidation
  • B1. Cu O
  • B2 Dipole-forbidden semiconductor

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Materials Chemistry
  • Inorganic Chemistry

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