Phosphorescence excitation spectral measurement system and method for long-lasting phosphor material
A technology of long afterglow material and excitation spectrum, which is applied in the field of spectrum measurement to achieve the effect of reducing experimental measurement errors
Active Publication Date: 2018-05-08
BAISE UNIV +1
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So far, there is no report on the detection system and method of phosphorescence excitation spectrum
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[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0026] It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or there can also be an intervening component. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be intervening components at the same time. When a component is said to be "set on" another component, it may be set directly on the other component or t...
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The invention provides a phosphorescence excitation spectral measurement system and method for a long-lasting phosphor material. The phosphorescence excitation spectral measurement system comprises anexcitation light source 1, a first light condensing element 2, an electric light shutter 3, a grating spectral monochromator 4, a second light condensing element 5, an optical long-wave pass filter 6, a sample rack 7, a third light condensing element 8, an optical band-pass filter 9, a photoelectric detector 10, an electric signal amplifier 11, a data acquisition and storage unit 12, a system control unit 13 and a data analytic processing and storage unit 14. Such parameters as irradiation time, excitation wavelength and light intensity acquisition interval are set by a control unit. In the phosphorescence excitation spectral measurement method, phosphorescence decay curves under different excitation wavelengths are measured at first, and variation curves of the phosphorescence strength along with excitation wavelengths at different decay time, namely, phosphorescence excitation spectral curves, are obtained. The phosphorescence excitation spectral measurement system and method for the long-lasting phosphor material can provide more information than a fluorescence excitation spectrum and facilitates study on the luminous mechanism of the long-lasting phosphor material.
Description
technical field [0001] The invention relates to the technical field of spectrum measurement, in particular to a phosphorescence excitation spectrum measurement system and method for long afterglow materials. Background technique [0002] There are two types of luminescence of long-lasting luminescent materials. One is the light emitted by the material while being illuminated by the excitation light, which is called fluorescence; the other is the light emitted by the material after the excitation light stops being illuminated, which is called phosphorescence. At present, the fluorescence spectroscopy and phosphorescence spectroscopy analysis techniques of long-lasting materials mainly have the following forms: 1) While or after the excitation light of a single wavelength or continuous wavelength is irradiated on the sample, a CCD spectrometer with a spectroscopic grating is used to measure the fluorescence of the phosphor. Fluorescence spectrum or phosphorescence spectrum, a...
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IPC IPC(8): G01N21/64
CPCG01N21/64
Inventor 徐章程覃焕昌
Owner BAISE UNIV