Preparation, Characterization, and Luminescence Properties of Orthorhombic Sodium Sulphate

<table>Photoluminescence spectra of Na<sub>2</sub>SO<sub>4</sub> calcined at 400°C (<svg height="16.450001" id="M65" style="vertical-align:-3.39069pt" version="1.1" viewbox="0 0 90.762497 16.450001" width="90.762497" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>).</table>

Physics Research International

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Figure 9

Figure 9: Preparation, Characterization, and Luminescence Properties of Orthorhombic Sodium Sulphate 