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Information × Registration Number 0223U005792, (0123U103326) , R & D reports Title Laser Ceramics for Detector of Harmful Substances popup.stage_title Лазерна кераміка для детекторів шкідливих речовин Head Rahulia Andrii V., д.т.н. Registration Date 31-12-2023 Organization Frantsevich Institute for Problems of Materials Science National Academy of Science of Ukraine popup.description1 Development of a technique for the synthesis of nanomaterials based on an ordered phase of the perovskite type LaLuO3:Ln3+ popup.description2  The objects of the study were oxides: La2O3, Lu2O3, Er2O3, Yb2O3 with a content of the main component of 99.99%. The purpose of the work is to develop a technique for the synthesis of nanomaterials based on an ordered phase of the perovskite type LaLuO3:Ln3+. As a result of the work, a technique for the synthesis of nanopowders based on an ordered phase with a LaLuO3:Ln3+ perovskite type structure was developed. Using electron microscopy (TEM), it was established that single-crystal nanopowders with a grain size in the range of  3090 nm were obtained. It was established that when the alloying impurity Yb3+ is changed to Er3+, a change in the morphology of the powder is observed. As a result of the sintering of the synthesized nanopowder, ceramic samples were obtained, characterized by a density of 96.1 and 97.1% for the compositions LaLuO3 and LaLuO3:Yb3+(1%), respectively. It was established that the obtained materials are characterized by maximum transmittance (in the IR region) of ~45% in the wavelength interval 6.5–7.5 μm and ~66% in the wavelength interval 6.8–7.8 μm for the compositions LaLuO3 and LaLuO3 :Yb3+(1%), respectively. As a result of the action of a magnetic field of 9.7 Ts, a textured material is formed. The formation of the texture is manifested only after the sintering of the sample exposed to the magnetic field. According to the data of luminescence studies, it was established that in the sample of composition LaLuO3:Yb3+(1%) at a temperature of 295 K, intense luminescence with a maximum of about 2.75 eV (450.7 nm) is observed. Product Description popup.authors Chudinovych Olha V. Ragulya Andrii V. Yurchenko Yurii V. Zamula Maryna V. Shуrokov Oleksandr V. Kolesnichenko Valerii H. Korniienko Oksana A. popup.nrat_date 2023-12-31 Close