Kuraray Co., Ltd.

Hiroshima University

Akihiro Yabuki

Hideharu Iwasaki

Kikuo Okuyama

Jun Takai

Ferry Iskandar

Takashi Ogi

An M-C&#x2014;N&#x2014;O based phosphor including a group IIIB element (M), carbon (C), nitrogen (O), wherein an amount of the group IIIB element (M) contained is 1%&#x3c;(M)&#x3c;50% by mass, an amount of carbon (C) contained is 0.005%&#x3c;(C)&#x3c;10% by mass, an amount of nitrogen (N) contained is 1%&#x3c;(N)&#x3c;60% by mass, an amount of oxygen (O) contained is 1%&#x3c;(O)&#x3c;75% by mass, and (M)+(C)+(N)+(O)=100% by mass. Colors of the M-C&#x2014;N&#x2014;O based phosphor can be changed by adjusting a peak top of an emission spectrum. Highly environmentally-compatible polymer dispersions, inorganic EL devices, light emitting devices, fluorescent tubes, and the like are also provided, which use the M-C&#x2014;N&#x2014;O based phosphors.

Growing community of inventors

Higashihiroshima, Japan

Akihiro Yabuki