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Low‐Temperature Preparation of Ba 5 Nb 4 O 15 Ceramics Through a Sol–Gel Process
Author(s) -
Hsiao YuJen,
Chang YenHwei,
Chang YeeShin,
Fang TeHua
Publication year - 2007
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2007.01729.x
Subject(s) - nanorod , materials science , transmission electron microscopy , scanning electron microscope , absorption spectroscopy , miniaturization , absorption (acoustics) , spectroscopy , ceramic , sol gel , analytical chemistry (journal) , nanotechnology , optics , chemistry , physics , chromatography , quantum mechanics , composite material
Hexagonal Ba 5 Nb 4 O 15 nanorods and microdisks were synthesized by a sol–gel process at temperatures of 700°–900°C. The samples were characterized by X‐ray diffraction, scanning electron microscopy, high‐resolution transmission electron microscopy, and UV–visible absorption spectroscopy. The visible light absorption edges of the Ba 5 Nb 4 O 15 nanorods and microdisks corresponded to the band gap energies of 3.63 and 3.70 eV, respectively. This shows that the nanorod and microdisk‐type structures are promising candidates for application in the miniaturization of microwave components.