FLUORESCENT SUBSTANCE, PROCESS FOR PRODUCING SAME, AND LUMINESCENT DEVICE USING SAME

WIPO Patent Application WO/2010/098141

A1

A fluorescent substance which has excellent temperature characteristics and can be excited by light in the region from near ultraviolet to short-wavelength visible light to emit light of a yellow to red color; a process for producing the fluorescent substance; and a luminescent device using the fluorescent substance. The fluorescent substance contains M, which is one or more Group-2 elements selected from Ca, Sr, and Ba, further contains aluminum, silicon, oxygen, and nitrogen, and has been activated with europium. The fluorescent substance, when examined with a CuKα line, has an X-ray diffraction pattern in which when the intensity of the diffraction peak appearing at a Bragg angle in the range of 17.9º to 18.5º is taken as 100%, the pattern has a diffraction peak having a relative intensity of 150% to 310% in a Bragg angle range of 24.5º to 25.1º and has a diffraction peak having a relative intensity of 320% to 550% in a Bragg angle range of 34.8º to 35.4º.

SHINOHARA, Takayuki (491-100 Oka, Kaminaka-cho, Anan-sh, Tokushima 01, 〒7748601, JP)
篠原雄之 (〒01 徳島県阿南市上中町岡４９１番地１００日亜化学工業株式会社内 Tokushima, 〒7748601, JP)

JP2010/001349

September 02, 2010

February 26, 2010

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NICHIA CORPORATION (491-100, Oka Kaminaka-cho, Anan-sh, Tokushima 01, 〒7748601, JP)
日亜化学工業株式会社 (〒01 徳島県阿南市上中町岡４９１番地１００ Tokushima, 〒7748601, JP)
SHINOHARA, Takayuki (491-100 Oka, Kaminaka-cho, Anan-sh, Tokushima 01, 〒7748601, JP)

C09K11/64; H01L33/50

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