Novel rosette-shaped CdS microparticle with high surface area fabricated by lyotropic liquid crystal templating

Sung Jae Im, Weon Sik Chae, Sang Wook Lee, Yong Rok Kim

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Semiconductor CdS microparticle covered with wrinkle-like nanotexture was prepared under ambient condition by using the lyotropic liquid crystal mesophase as a structural template. The prepared CdS microparticle resembles a rosette shape with a diameter of 0.5-1.5 μm and the wrinkle-like nanotexture on its surface. This rosette-shaped CdS consists of small nanocrystals with a diameter of ∼4 nm, and the nanocrystal building block has the zinc-blende crystal structure. The characteristic band-to-band absorption and near band-edge emission are observed in this unique semiconductor particle. Nitrogen gas physisorption measurement reveals that the material has the high BET surface area of 38 m2 g-1 and nanoporous nature.

Original languageEnglish
Pages (from-to)899-904
Number of pages6
JournalMaterials Research Bulletin
Volume41
Issue number4
DOIs
Publication statusPublished - 2006 Apr 13

Fingerprint

Liquid Crystals
microparticles
Liquid crystals
Nanocrystals
liquid crystals
Semiconductor materials
rosette shapes
Physisorption
nanocrystals
Zinc
Absorption spectra
Nitrogen
Crystal structure
Gases
templates
zinc
absorption spectra
nitrogen
crystal structure
gases

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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abstract = "Semiconductor CdS microparticle covered with wrinkle-like nanotexture was prepared under ambient condition by using the lyotropic liquid crystal mesophase as a structural template. The prepared CdS microparticle resembles a rosette shape with a diameter of 0.5-1.5 μm and the wrinkle-like nanotexture on its surface. This rosette-shaped CdS consists of small nanocrystals with a diameter of ∼4 nm, and the nanocrystal building block has the zinc-blende crystal structure. The characteristic band-to-band absorption and near band-edge emission are observed in this unique semiconductor particle. Nitrogen gas physisorption measurement reveals that the material has the high BET surface area of 38 m2 g-1 and nanoporous nature.",
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Novel rosette-shaped CdS microparticle with high surface area fabricated by lyotropic liquid crystal templating. / Im, Sung Jae; Chae, Weon Sik; Lee, Sang Wook; Kim, Yong Rok.

In: Materials Research Bulletin, Vol. 41, No. 4, 13.04.2006, p. 899-904.

Research output: Contribution to journalArticle

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