Synthesis of size- and structure-controlled Ge2Sb 2Te5 nanoparticles

Hoon Sang Choi*, Kwang Soo Seol, Kazuo Takeuchi, Junya Fujita, Yoshimichi Ohki

*この研究の対応する著者

研究成果査読

22 被引用数 (Scopus)

抄録

Pulsed laser ablation of Ge2Sb2Te5 target materials at approximately 400 Pa of ambient argon gas produces amorphous nanoparticles with a size distribution of from 4 to 30 nm. Thermal treatment of the nanoparticles in their aerosol states crystallizes the particles to both a hexagonal structure and a face-centered cubic structure at 300°C, while only a face-centered cubic structure results at 400°C. The crystallized nanoparticles were then size-classified by a differential mobility analyzer to produce size- and structure-controlled Ge2Sb2Te 5 nanoparticles. The particles are revealed to consist of germanium, antimony and tellurium by composition analysis using energy dispersive X-ray spectroscopy.

本文言語English
ページ(範囲)7720-7722
ページ数3
ジャーナルJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
44
10
DOI
出版ステータスPublished - 2005 10 11

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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