| 摘要 |
The present invention provides zinc oxide particles having a large specific surface area, and a zinc oxide composite material, and processes for producing these, and the invention is zinc oxide particles formed by crystal growth into a multi-needle shape and having a larger specific surface area than hexagonal columnar particles; to a zinc oxide composite material comprising the zinc-containing thin film and the zinc oxide particles; to processes for producing the zinc oxide particles and the composite material, and an advantage of the present invention is that a larger specific surface area can be obtained than with hexagonal columnar particles, and a particle film of a specified thickness with fewer grain boundaries can be formed, thereby achieving less reduction in dielectric constant due to grain boundaries.
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