FLUORESCENT MATERIAL AND MANUFACTURING METHOD OF THE SAME, FLUORESCENT MATERIAL-CONTAINING COMPOSITION AND LIGHT-EMITTING DEVICE USING FLUORESCENT MATERIAL, AND IMAGE DISPLAY DEVICE AND ILLUMINATING DEVICE USING LIGHT-EMITTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a red fluorescent material having a narrow half-value width at light emission peak and excellent light emission characteristics, and a manufacturing method of the material, a fluorescent material-containing composition and a light-emitting device using the fluorescent material, and an image display device and an illuminating device using the light-emitting device.SOLUTION: A fluorescent material contains a crystal phase having a chemical composition expressed by the following formula [1], percentage of Mn to the total molar number of Mand Mn is 0.1 mole % or more and 40 mole % or less, and a specific surface area is 1.3 m/g or less. MMF: R ...[1] (in the formula [1], Mcontains one type or more elements selected from the group consisting of K and Na, Mdenotes a metal element containing Si, and R denotes an activating element containing at least Mn.)