| 摘要 |
PROBLEM TO BE SOLVED: To provide a light emission quantum efficiency measuring device which easily and certainly makes isotropic the light emission of an emitter sample showing strong light emission anisotropy, and accurately measures the light emission quantum efficiency of the emitter sample. SOLUTION: This light emission quantum efficiency measuring device has: an excitation light introduction window 2 in the orthogonal direction on the plane including the center of an integrating sphere 1; and a detection probe end 3 connected to a spectrometer. The emitter sample 5 is arranged inside the integrating sphere 1 and on the line perpendicular to this plane from the center, and a baffle plate 7 is placed in a position viewing the emitter sample 5 from the detection probe end 3. COPYRIGHT: (C)2009,JPO&INPIT
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