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Silica sol-gel glasses doped with Eu3+ ions were obtained by different preparation techniques. The absorption, emission and excitation spectra of the obtained glasses were measured in the range of 77-300 K. The energy level diagrams of Eu3+ ions were derived. An intensity analysis of f-f transitions was performed. In particular, polymeric structure behaviour of europium compounds entrapped in silica gels glasses was temperature controlled during the preparation of glasses. Their optical properties were investigated.

Comparison of Optical Properties of Eu3+Ions in the Silica Gel Glasses Obtained by Different Preparation Techniques

Comparison of Optical Properties of Eu³⁺Ions in the Silica Gel Glasses Obtained by Different Preparation Techniques