Mitsui Minings & Melting Co., Ltd.

Ikuhiro Ozawa

Jun-ichi Itoh

Takayoshi Mori

Yoshinori Shimizu

Riko Sato

Yasuhiro Shibata

Yasuo Komoda

Jun-Ichi Itoh

A fine metal linear body is provided in which the sintering temperature is lower than that in conventional examples. The fine metal linear body has a length of 0.5 to 200 μm and a thickness of 30 nm to 10 μm. When a length of a crystal of a metal constituting the fine metal linear body, in a direction in which the fine metal linear body extends, is taken as X, and a length thereof in a direction orthogonal to the direction is taken as Y, an X/Y value, which is a ratio of the X to the Y, is 4 or less, in three boundary regions when dividing the length of the fine metal linear body into four equal parts along the extending direction.

Fine metal linear body

Provided is a new phosphor which can be excited by visible light in a wide band to emit a broad fluorescence spectrum, and also to emit near-infrared light with high intensity. Proposed is a phosphor, which is an oxide comprising Ca, Cu, and Si, wherein the containing molar ratios of the elements are 0.15&#x2264;Ca/Si&#x3c;0.25 and 0.13&#x2264;Cu/Si&#x3c;0.25.

Phosphor

Provided is a phosphor, which is excited by a wide band of visible light, capable of emitting near-infrared light of high intensity. The phosphor comprises a crystal phase represented by a formula (1): MCuSiO(where M comprises one or more of Ba, Sr and Ca), and a crystal phase represented by a formula (2): MCuSiO(where M comprises one or more of Ba, Sr and Ca), wherein a ratio &#x3b2; of a diffraction peak intensity of MCuSiOwith respect to a diffraction peak intensity of MCuSiOin an X-ray diffraction (XRD) pattern obtained by powder XRD measurement using CuK&#x3b1; rays is 0&#x3c;&#x3b2;&#x2264;0.50.

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Ageo, Japan

Ikuhiro Ozawa