Loading patent…
AssigneesHiroshima University, Kuraray Co., Ltd.
InventorsKikuo Okuyama, Ferry Iskandar, Yutaka Kaihatsu, Jun Takai, Hideharu Iwasaki
Estimating the term…
The present invention provides an Al—C—O based phosphor using neither heavy metal nor rare metal and composed of elements with high environmental compatibility and excellent economic efficiency, wherein the wavelength of the peak intensity of the emission spectrum can be changed without changing the basic composition. An aluminum oxide phosphor which comprises aluminum (Al), carbon (C), and oxygen (O) respectively in an amount of 30 mol %<Al<60 mol %, 0 mol %<C<10 mol %, 30 mol %<O<70 mol % is provided. The above problem is solved in the production of an Al—C—O phosphor comprising aluminum (Al), carbon (C), and oxygen (O) by heating and firing a mixture comprising an aluminum-containing compound and a coordinatable oxygen-containing compound.
An ultraviolet excitation type aluminum oxide phosphor consisting essentially of aluminum (Al), carbon (C), and oxygen (O), wherein aluminum (Al), carbon (C), oxygen (O) are respectively contained in an amount of:
An ultraviolet excitation type aluminum oxide phosphor consisting essentially of aluminum (Al), carbon (C), and oxygen (O), wherein aluminum (Al), carbon (C), oxygen (O) are respectively contained in an amount of:
Dependencies are inferred from the claim text.