Cr^3＋ doped magnesia aluminum spinel has potential applications in the fields of sensing, scintillator and laser. The structure, morphology, photoluminescence and diffuse reflection spectra of Mg(Al,Y)₂O₄:Cr^3＋ were examined as a function of toluene content during the Pechini-type hydrothermal process. Toluene solvent changed the microstructure of Mg(Al,Y)₂O₄:Cr^3＋ nanopowders, especially for the ratio of Al:Mg in the sample. Toluene also improved the agglomeration of nanopowders, and the luminescent intensity of the sample prepared with 60% and 75% toluene was enhanced by 16%.

中文翻译：

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甲苯含量对Pechini型水热法制备Mg（Al，Y）₂ O ₄：Cr ^3＋纳米粉的影响

Cr ³⁺掺杂的镁铝尖晶石在传感，闪烁体和激光领域具有潜在的应用。在Pechini型水热过程中，研究了Mg（Al，Y）₂ O ₄：Cr ^3＋的结构，形态，光致发光和漫反射光谱，这是甲苯含量的函数。甲苯溶剂改变了Mg（Al，Y）₂ O ₄：Cr ^3＋纳米粉的微观结构，特别是改变了样品中Al：Mg的比例。甲苯还改善了纳米粉的团聚，用60％和75％甲苯制备的样品的发光强度提高了16％。