As a kind of energy storage materials, the long afterglow luminescent material is used in many application fields. In this paper, the pore-forming agent of ammonium bicarbonate is added in the raw material, and the simple high temperature solid state method is adopted to prepare the long persistence luminescent materials with different pore structures. All the long afterglow materials are the series of Sr₂MgSi₂O₇: Eu²⁺, Dy³⁺, where the photoluminescence spectrum is the characteristic curve of the Eu²⁺ with the emission peak located around 465 nm. The pore diameter increases with the increase of the amount of pore-forming agent, which reaches the maximum with the size of 10–200 μm when the mass content of ammonium bicarbonate is 50%, accompanied by the result that the afterglow performance is improved by more than 72%. All the hole wall is composed of grains. The epoxy resin was used as the filling agent, provided light channels in the porous long persistence luminescent materials, and the afterglow performance could be improved by more than 40%. The initial intensity increases from 3.56 cd/m² (without pore-forming agent) to 9.51 cd/m². It provides an effective way for the application of long afterglow luminescence materials.

长余辉发光材料作为一种储能材料，已在许多应用领域中得到应用。本文在原料中加入碳酸氢铵成孔剂，采用简单的高温固态法制备出具有不同孔隙结构的长余辉发光材料。所有长余辉材料均为Sr ₂ MgSi ₂ O ₇：Eu ₂ ⁺，Dy ^3+系列，其中光致发光光谱为Eu ²⁺的特征曲线。发射峰位于465 nm附近。孔径随着成孔剂数量的增加而增加，当碳酸氢铵的质量含量为50％时，孔径在10-200μm时达到最大值，结果是通过改善成孔性能超过72％。所有的孔壁都是由谷物组成的。环氧树脂用作填充剂，在多孔长余辉发光材料中提供光通道，余辉性能可提高40％以上。初始强度从3.56 cd / m ²（无成孔剂）增加到9.51 cd / m ²。它为长余辉发光材料的应用提供了一种有效的方法。