Oxysulfide elastic mechanoluminescence material and preparation method thereof
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A technology of elastic stress and luminescent materials, which is applied in the direction of luminescent materials, chemical instruments and methods, etc., which can solve the problems of less types of elastic stress luminescent materials, high luminous intensity of elastic stress luminescent materials, and difficulty in meeting application requirements, etc. The conditions are easy to control , low equipment requirements and low cost
Inactive Publication Date: 2019-12-31
XIAMEN UNIV
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Problems solved by technology
At present, the research on elastic stress luminescent materials mainly has the following problems: (1) There are few types of elastic stress luminescent materials with recoverability; (2) The known elastic stress luminescent materials have a large luminous intensity, which is difficult to achieve (3) The mechanism of stress luminescent materials is not yet clear, and the development and design of stress luminescent materials is relatively difficult
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Embodiment 1～3
[0028] Select strontium carbonate, zinc sulfide and transition metal carbonates or rare earth ion oxides as raw materials, weigh the raw materials according to the molar ratio of each element (as shown in Table 1), put the above raw materials into an agate mortar and grind, mix well Finally, take an appropriate amount of sample and put it into the corundum crucible, then put the crucible into the corundum boat, push the corundum boat into the tube furnace, raise the temperature to 1000°C for 24 hours under the protective atmosphere of pure argon, and keep the temperature with the furnace. Allow to cool naturally. Grind the cooled sample for 10-30 minutes to obtain an oxygen-sulfur compound-based stress-luminescent powder.
[0029] The sample proportioning of table 1 embodiment 1~3
[0030]
[0031] figure 1 Prepare the X-ray diffraction figure of sample for embodiment 1~3, spectral line adopts Bruker d8-advance bruker X-ray diffractometer to measure, test voltage 40kv, te...
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Abstract
Belonging to the field of inorganic luminescent materials, the invention discloses an oxysulfide elastic mechanoluminescence material and a preparation method thereof. The chemical expression generalformula of the oxysulfide elastic mechanoluminescence material is Sr1-xZn2-yS2O:Ax,By, wherein x is greater than or equal to 0 and less than or equal to 1, y is greater than or equal to 0 and less than or equal to 2, x and y represent molar percentage content, and x and y are not zero at the same time; A is at least one of the rare earth ions Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and thelike; and B is at least one of transition metal ions Mn and Cu. The preparation method includes: weighing the raw materials according to the stoichiometric ratio of the metal elements, performing grinding in an agate bowl, mixing the substances uniformly, putting the mixed powder into an alumina crucible, performing heating to 800-1200DEG C in a protective atmosphere or in vacuum, conducting heatpreservation for 10-48h, and conducting furnace cooling naturally to room temperature; and grinding the cooled powder to obtain the oxysulfide elastic mechanoluminescence material.
Description
technical field [0001] The invention belongs to the field of inorganic luminescent materials, and in particular relates to an oxygen sulfide elastic stress luminescent material and a preparation method thereof. Background technique [0002] Mechanoluminescence (ML for short) materials refer to solid materials that emit light under the action of various mechanical forces (such as extrusion, friction, impact, stretching, and twisting). According to the degree of deformation of the material and whether it can be recovered, stress luminescent materials are divided into destructive fracture stress luminescent materials and non-destructive deformation stress luminescent materials, and non-destructive deformation stress luminescent materials can be divided into elastic stress luminescent materials and plastic stress luminescent materials. . Among them, elastic stress luminescence has the advantages of repeatability, luminous intensity proportional to stress, and high sensitivity. ...
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