Effect of precursor types on the characteristics of the Pb-based glass powders prepared by spray pyrolysis

You Na Ko, Hye Young Koo, Jung Hyun Kim, Jang Heui Yi, Yun Chan Kang

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Lead (Pb)-based glass powders with a spherical shape and submicron size were directly prepared by spray pyrolysis using spray solutions with various types of Pb and silicon (Si) components. The glass powders formed by the spray solution with Pb chloride and tetraethyl orthosilicate (TEOS) precursors had a broad X-ray diffraction (XRD) peak at around 28° with small crystalline peaks. The powders had an impurity peak caused by chlorine in the EDX spectrum. However, the glass powder formed from the spray solutions that contained Pb nitrate and Pb acetate precursors had an amorphous phase, irrespective of the type of Si precursor. The dielectric layers formed from the glass powders obtained from the spray solutions with Pb nitrate and Pb acetate had a dense structure and high transmittance above 85%, irrespective of the type of Si precursor components. In contrast, the dielectric layer formed from the glass powders prepared from the spray solution with Pb chloride and TEOS had large voids in the layer and had low transmittance below 50% under the visible range.

Original languageEnglish
Pages (from-to)395-399
Number of pages5
JournalCeramics International
Volume36
Issue number1
DOIs
Publication statusPublished - 2010 Jan

Keywords

  • A. Powders: chemical preparation
  • A. Powders: gas phase reaction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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