A cellular phosphor material based on Sr_0.97Al₂O₄:Eu_0.03 was manufactured via vacuum assisted infiltration of wood tissue (Pinus sylvestris) with a precursor nitrate solution. The major crystalline phase was monoclinic SrAl₂O₄, detected by X-ray diffraction (XRD). Due to the uniform arrangement of rectangular shaped tracheidal cells of the pine wood specimens, the nitrate solution penetrated homogeneously into the porous structure. The microstructure of the biotemplated Sr_0.97Al₂O₄:Eu_0.03 phosphor was examined by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Energy-dispersive X-ray analysis (EDX) proved the homogeneous conversion of the wood cell wall into Sr_0.97Al₂O₄:Eu_0.03 struts. The optical properties of the resulting phosphor material were determined by photoluminescence spectroscopy (PL) at room temperature and cathodoluminescence spectroscopy (CL) in the SEM. The biotemplated Sr_0.97Al₂O₄:Eu_0.03 showed a characteristic green emission at 530 nm (2.34 eV). Shaping biomorphous SrAl₂O_4:Eu²⁺ phosphor with a microstructure pseudomorphous to the bioorganic template anatomy offers novel approach for designing highly oriented phosphor materials to be used in two dimensional detector arrays.

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