Phosphor, manufacturing method thereof and light emitting device using the same
AssigneeSharp Kabushiki Kaisha
InventorHajime Saito
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Abstract
The present invention provides a nano particle phosphor with superior luminous characteristic formed using nitride semiconductor material, a method of manufacturing the phosphor with high production yield, and a light emitting device using the phosphor. The phosphor is formed of a columnar crystal having a diameter of at most 3 nm, a light emitting region and a light absorbing region are defined in the columnar crystal, and the light emitting region and the light absorbing region are adjacent to each other along a longitudinal direction of the columnar crystal.
Claims13
A phosphor formed of a columnar crystal having a diameter of at most 3 nm, wherein a light emitting region and a light absorbing region are defined in the columnar crystal, and said light emitting region and the light absorbing region are adjacent to each other along a longitudinal direction of said columnar crystal.
A method of manufacturing a phosphor, comprising the steps of:
- forming a dielectric thin film on a substrate;
- growing a phosphor of columnar crystal on the dielectric thin film;
- and removing said phosphor of columnar crystal from said substrate by etching.
Dependencies are inferred from the claim text.