Synthesis and thermoluminescence properties of CdB4O7:Tb3+ and CdB4O7:Mn2+


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Abstract

Polycrystalline samples of undoped, terbium-doped (CdB4O7:Tb3+), and manganese-doped (CdB4O7:Mn2+) cadmium tetraborate have been prepared by solid-state reactions at 850°C. Using differential scanning calorimetry and X-ray diffraction, we have determined the melting point of CdB4O7 (tm = 976°C) and shown that this compound melts incongruently. The observed monotonic decrease in the orthorhombic cell parameters of the doped materials indicates the formation of substitutional solid solutions (sp. gr. Pbca). The thermoluminescence intensity of the doped materials has been shown to depend on the nature and concentration of the activators and the irradiation time.

About the authors

T. N. Khamaganova

Baikal Institute of Nature Management, Siberian Branch

Author for correspondence.
Email: khamaganova@binm.bscnet.ru
Russian Federation, ul. Sakh’yanovoi 6, Buryat Republic, Ulan-Ude, 670047

T. G. Khumaeva

Geological Institute, Siberian Branch

Email: khamaganova@binm.bscnet.ru
Russian Federation, ul. Sakh’yanovoi 6a, Buryat Republic, Ulan-Ude, 670047

A. K. Subanakov

Baikal Institute of Nature Management, Siberian Branch

Email: khamaganova@binm.bscnet.ru
Russian Federation, ul. Sakh’yanovoi 6, Buryat Republic, Ulan-Ude, 670047

A. V. Perevalov

Geological Institute, Siberian Branch

Email: khamaganova@binm.bscnet.ru
Russian Federation, ul. Sakh’yanovoi 6a, Buryat Republic, Ulan-Ude, 670047

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