PHOSPHOR AND USE THEREOF - Mitsubishi Chemical Corporation

Title:

PHOSPHOR AND USE THEREOF

Document Type and Number:

WIPO Patent Application WO/2006/126567

Kind Code:

A1

Abstract:

Disclosed is an excellent orange or red phosphor which emits a high luminance light and does not decrease much in luminance when exposed to an excitation source. This phosphor contains a crystalline phase having a chemical composition represented by the following general formula [1]. (1 - a - b)(Ln'_pM^II'_1-pM^III'M^IV'N₃)·a(M^IV'_(3n+2)/4N_nO)·b(AM^IV'₂N₃) [1] In the formula, Ln' represents a metal element selected from lanthanoids, Mn and Ti; M^II' represents a divalent metal element other than the Ln' element; M^III' represents a trivalent metal element; M^IV' represents a tetravalent metal element; A represents a metal element selected from Li, Na and K; and 0 < p ≤ 0.2, 0 ≤ a, 0 ≤ b, a + b > 0, 0 ≤ n, and 0.002 ≤ (3n + 2)a/4 ≤ 0.9.

Inventors:

Hirosaki, Naoto c/o NATIONAL INSTITUTE FOR MATERIALS SCIENCE (2-1 Sengen 1-chome Tsukuba-sh, Ibaraki 47, 30500, JP)
Seto, Takatoshi c/o Mitsubishi Chemical Group Science and Technology Research Center (Inc. 1000, Kamoshida-cho, Aoba-ku, Yokohama-sh, Kanagawa 02, 22785, JP)
Kijima, Naoto c/o Mitsubishi Chemical Group Science and Technology Research Center (Inc. 1000, Kamoshida-cho, Aoba-ku, Yokohama-sh, Kanagawa 02, 22785, JP)

Application Number:

PCT/JP2006/310312

Publication Date:

November 30, 2006

Filing Date:

May 24, 2006

Export Citation:

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Assignee:

Mitsubishi Chemical Corporation (14-1, Shiba 4-chome Minato-k, Tokyo, 108-0014, JP)
Independent Administrative Institution NATIONAL INSTITUTE FOR MATERIALS SCIENCE (2-1 Sengen 1-chome, Tsukuba-shi Ibaraki, 47, 30500, JP)
Hirosaki, Naoto c/o NATIONAL INSTITUTE FOR MATERIALS SCIENCE (2-1 Sengen 1-chome Tsukuba-sh, Ibaraki 47, 30500, JP)
Seto, Takatoshi c/o Mitsubishi Chemical Group Science and Technology Research Center (Inc. 1000, Kamoshida-cho, Aoba-ku, Yokohama-sh, Kanagawa 02, 22785, JP)
Kijima, Naoto c/o Mitsubishi Chemical Group Science and Technology Research Center (Inc. 1000, Kamoshida-cho, Aoba-ku, Yokohama-sh, Kanagawa 02, 22785, JP)

International Classes:

C09K11/64; C09K3/00; C09K11/08; H01J5/08; H01S5/022; H01J1/63; H01J11/02; H01J29/20; H01J31/15; H01L33/50

Attorney, Agent or Firm:

Shigeno, Tsuyoshi (Nissin bldg, 9F 5-10, Shinjuku 2-chome, Shinjuku-k, Tokyo 22, 16000, JP)

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