| abstract |
The conventional blue fluorescent material has low energy efficiency and low color purity, is difficult to use in light source applications and display applications, requires a large amount of expensive rare earth salts, and is not economically suitable. To solve problems such as being. A blue phosphor characterized in that praseodymium and alkaline earth metal are doped in a group II-VI compound semiconductor, and praseodymium and alkaline earth metal are simultaneously doped by firing in a group II-VI compound semiconductor. A method for producing a blue phosphor. [Selection figure] None |