zhpsЖурнал прикладной спектроскопииZhurnal Prikladnoii Spektroskopii0514-7506B. I. Stepanov Institute of Physics of the National Academy of Scienceszhps-1231Research ArticleАННОТАЦИИ АНГЛОЯЗЫЧНЫХ СТАТЕЙABSTRACTS ENGLISH-LANGUAGE ARTICLESВлияние фторида свинца на спектроскопические свойства стекол на основе бората, легированного ионами Dy3+Effect of Lead Fluoride on the Spectroscopic Properties of Dy3+-Doped Borate-Based GlassesSrivastavaP.SrivastavaP.

Гьянпур, Бхадохи

Gyanpur, Bhadohi

prriyaprakash@gmail.comПравительственный колледжK. N. Govt. P. G. College202304022023901117117Copyright © Srivastava P., 20232023Srivastava P.Srivastava P.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://zhps.ejournal.by/jour/article/view/1231

Изучено влияние добавления PbF2 на спектроскопические свойства некоторых стекол на боратной основе, легированных диспрозием. Содержание PbF2 в стекле варьировалось от 0 до 50 мол.%. Аморфная природа стекла подтверждена с помощью рентгеновской дифракции. Параметры интенсивности Ωλ (λ = 1, 2, 3) оценены по спектрам поглощения в УФ-видимой и ближней инфракрасной областях спектра с использованием теории Джадда–Офельта. Рассчитаны радиационные параметры и проанализировано их изменение при разных концентрациях фторида свинца. Зарегистрированы спектры флуоресценции стекол и обнаружено возрастание выхода флуоресценции по мере роста содержания PbF2 от 0 до 40 мол.%, затем его снижение. Зарегистрированные ИК-спектры поглощения стекол интерпретированы с точки зрения изменения структуры стекол. Проведено сравнение времени жизни уровня 4F9/2 иона диспрозия, измеренного по профилю распада, с рассчитанным временем жизни. 

The effect of adding PbF2 to the spectroscopic properties of dysprosium-doped borate-based glasses is studied. The content of PbF2 in the glass is varied from 0 to 50 mol%. X-ray diffraction confirms the amorphous nature of the glass. The Judd–Ofelt theory is applied to evaluate the intensity parameters Ωλ (λ = 1, 2, 3) from the UV-Vis-NIR absorption spectra of glasses. Various radiative parameters are calculated, and the variation of these parameters with different concentrations of lead fluoride is discussed. The fluorescence spectra of glasses are recorded, and it is observed that the fluorescence yield increases as the PbF2 content rises from 0 to 40 mol% but decreases thereafter. The IR absorption spectra of these glasses are also recorded and interpreted in terms of changes in the structure of the glasses. The decay lifetime of the 4F9/2 level of the dysprosium ion is measured from the decay profile and compared with the calculated lifetime. 

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