Growth of small GeO 2 single crystals on a polyvinyl chloride substrate at room temperature using oversaturate aqueous solution

Kiyoshi Kobayashi, Tohru Suzuki

Research output: Contribution to journalArticle


Small GeO 2 single crystal was successfully grown on a polyvinyl chloride (PVC) substrate at room temperature in oversaturate aqueous solution. The oversaturated solution could be prepared at strong acid condition (pH~0) using distilled water, germanium oxide, dilute ammonia, and nitric acid. About 7 m size of the GeO 2 single crystals with quartz-type structure was obtained by only keeping the PVC plate in the solution for about 10 days when appropriate concentration of the solution was used. The obtained GeO 2 single crystals were confirmed to be constructed by {101} and {011} surfaces based on powder X-ray diffraction pattern and particle morphology observed by scanning electron microscope.

Original languageEnglish
Pages (from-to)203-206
Number of pages4
JournalIEEJ Transactions on Electronics, Information and Systems
Issue number3
Publication statusPublished - 2019 Jan 1
Externally publishedYes



  • GeO2
  • Oversaturated aqueous solution
  • Small single crystal

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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