Concentration and Cyrstalline Phase Effects on the Spectroscopic Properties of Sol‐Gel Synthesized Er³+:Y²Si²O7 Nanopowders

Nanosized yttrium disilicate powders activated with trivalent erbiumions were produced by sol‐gel known as wet chemical process. the structure andmorphology of the synthesized powders were characterized by using x‐raydiffraction spectroscopy (xrd), transmission electron microscopy (tem) andphotoluminescence spectroscopy. the xrd analysis revealed that the formation oftriclinic α‐y²si²o7 and monoclinic ß‐y²si²o7 polymorphs were obtained at 1050^ and 1450^, respectively. the photoluminescence properties were alsoinvestigated in terms of sintering temperature and doping effect on different polymorphs.