Ba2Gd2 – xSmxGe4O13: Luminescence Properties, Prospects for Non-Contact Temperature Sensing Applications and Light-Emitting Diodes

Мұқаба

Дәйексөз келтіру

Толық мәтін

Ашық рұқсат Ашық рұқсат
Рұқсат жабық Рұқсат берілді
Рұқсат жабық Тек жазылушылар үшін

Аннотация

Tetragermanates Ba2Gd2 – xSmxGe4O13 (x = 0.025–0.8) have been synthesized by the solid-phase method. Solid solutions crystallize in the monoclinic crystal system (space group С2/с, Z = 4) and are members of a small family of inorganic compounds containing [Ge4O13]10– anions. The photoluminescence properties of germanates upon excitation by radiation with λex = 275 nm have been studied. The spectra of the compounds show a broad band with a maximum at 313 nm and a set of lines in the range of 525–730 nm, corresponding to intraconfigurational 4f–4f transitions in Gd3+ and Sm3+ ions. It has been found that germanate Ba2Gd1.95Sm0.05Ge4O13 has the maximum luminescence intensity. For this sample, the color characteristics and the temperature dependences of the intensity ratios of the main luminescence bands upon heating to 498 K have been studied. It has been concluded that Ba2Gd1.95Sm0.05Ge4O13 can be used as a material for non-contact temperature sensing and light emitting diodes.

Негізгі сөздер

Авторлар туралы

A. Chvanova

Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences

Email: chvanova10_99@mail.ru
620990, Yekaterinburg, Russia

O. Lipina

Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences

Email: chvanova10_99@mail.ru
620990, Yekaterinburg, Russia

A. Chufarov

Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences

Email: chvanova10_99@mail.ru
620990, Yekaterinburg, Russia

A. Tyutyunnik

Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences

Email: chvanova10_99@mail.ru
620990, Yekaterinburg, Russia

Ya. Baklanova

Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences

Email: chvanova10_99@mail.ru
620990, Yekaterinburg, Russia

L. Surat

Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences

Email: chvanova10_99@mail.ru
620990, Yekaterinburg, Russia

V. Zubkov

Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences

Хат алмасуға жауапты Автор.
Email: chvanova10_99@mail.ru
620990, Yekaterinburg, Russia

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© А.В. Чванова, О.А. Липина, А.Ю. Чуфаров, А.П. Тютюнник, Я.В. Бакланова, Л.Л. Сурат, В.Г. Зубков, 2023

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