Trap centers in molybdates

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• 作者：D.A. Spassky ; V. Nagirnyi ; V.V. Mikhailin ; A.E. Savon ; A.N. Belsky ; V.V. Laguta ; M. Buryi ; E.N. Galashov ; V.N. Shlegel ; I.S. Voronina ; B.I. Zadneprovski
• 关键词：Molybdate single crystals ; Thermostimulated luminescence ; Scintillating bolometers ; Self-trapping of charge carriers
• 刊名：Optical Materials
• 出版年：2013
• 出版时间：October, 2013
• 年：2013
• 卷：35
• 期：12
• 页码：2465-2472
• 全文大小：1976 K

文摘

Charge carrier trapping centers have been studied in molybdates CaMoO₄, SrMoO₄ and PbMoO₄ with the scheelite crystal structure as well as in ZnMoO₄, which crystallize in a-ZnMoO₄ structural type. The trap parameters such as activation energies and frequency factors have been determined. It is shown for the first time that both electrons and holes are trapped by the elements of regular crystal structure in ZnMoO₄. The effect of the charge carrier trapping on luminescence properties is demonstrated. Potential influence of the traps on the scintillation process is discussed.