Characterisation and luminescence studies of Tm and Na doped magnesium borate phosphors

Ekdal, E.; Guinea, Javier García; Karabulut, Y.; Canımoğlu, A.; Harmansah, Coskun; Jorge, Alberto; Karalı, T.; Can, N.

doi:10.1016/j.apradiso.2015.05.023

Cited by 18 publications

(1 citation statement)

References 21 publications

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“…Transition metal oxides such as iron, cobalt and manganese exhibit good solubility in a borate matrix [6][7][8]. Moreover, TMIs can exist in a number of valance states, which leads to semiconducting properties of obtained materials and related applications in solar energy converters and lasers [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Role of MnO in manganese–borate binary glass systems: a study on structure and thermal properties

et al. 2017

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Structural and thermal properties of xMnO−(100− x)B 2 O 3 (where x = 40, 50 and 60 mol%) glass samples have been investigated with the employment of various techniques. Fourier transform infrared spectroscopy results revealed the influence of MnO on glass matrix. Decrease of B-O bond-related band intensities has been observed. MnO addition was found to introduce broken [BO 2 O − ] n chains. Differential scanning calorimetry (DSC) measurements presented decreasing T g that indicates depolymerization of glass matrix in the considered compositional range. Moreover, thermal stability (TS) parameter has been evaluated using the DSC technique. It slightly decreased with MnO content. X-ray photoelectron spectroscopy results provided the evidence for Mn 2+ and Mn 3+ presence. Multiplet splitting, close to that of MnO, has been observed. It has been concluded that most of the manganese ions existed in the divalent state. Photoluminescence study revealed that manganese ions are tetragonally coordinated in a glassy matrix.

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