Domestic Developments of IR Optical Materials Based on Solid Solutions of Silver Halogenides and Monovalent Thallium

Zhukova, Liya; Lvov, Alexander; Корсаков, А. С.; Salimgareev, Dmitrii; Korsakov, V. S.

doi:10.1134/s0030400x18120238

Cited by 30 publications

(6 citation statements)

References 12 publications

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“…Световоды, полученные на основе данных материалов, прозрачны в диапазоне длин волн от 3 до 26 µm [3,4], что соответствует по закону Планка температурам от 966 до 188 K. Таким образом, рассматриваемые оптические материалы могут найти широкое применение в различных областях науки и техники, в том числе в лазерной, эндоскопической и диагностической медицине, удаленном тепловом и спектральном контроле технологического оборудова-ния. Материалы системы AgBr−AgI обладают высокой фотостойкостью [5], которая позволяет использовать эти материалы без специальных защитных фильтров. Высокая устойчивость к радиационному облучению позволяет использовать эти кристаллические материалы и ИК световоды из них в условиях повышенного ионизирующего излучения до значений дозы 500 kGy, что открывает широкие возможности для внедрения таких оптических материалов в атомно-энергетические [6,7] и космические технологии [8].…”

Section: Introductionunclassified

Исследование вольт-амперных характеристик оптических материалов системы AgBr-AgI

Тураби¹,

Акифьева²,

Корсаков³

et al. 2022

Оптика И Спектроскопия

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IR light guides based on crystals and ceramics of the AgBr-AgI system are transparent in the mid-infrared range from 2 to 25 μm, which is in demand for thermal imaging, laser technology and spectroscopy. High photo- and radiation resistance makes these materials particularly attractive. For the design of optical equipment, information is needed on the electrical properties of the material, which are most fully characterized by the current-voltage characteristic (VAC). In this work, the dependence of VAC of the studied materials in the range of compositions from 5 to 80 mol. % AgI in the system AgBr-AgI on the composition of the material and temperature in the range of 298-453 K. It has been established that an increase in the iodine content for crystalline materials of AgBr-AgI systems leads to a decrease in electrical conductivity. The values of specific conductivity under equal conditions (the same temperature and the same applied voltage) for ceramics of the AgBr-AgI system are two to three orders of magnitude higher than for crystals. The values of specific conductivity for ceramics are at the level of conductivity of solid electrolytes. At the temperature of the β-AgI – α-AgI phase transition in ceramics of the AgBr-AgI systems, a jump in conductivity is observed, which is explained by the β-AgI – α-AgI phase transition.

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Section: Introductionunclassified

Исследование вольт-амперных характеристик оптических материалов системы AgBr-AgI

Тураби¹,

Акифьева²,

Корсаков³

et al. 2022

Оптика И Спектроскопия

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“…The light guides obtained on the basis of these materials are transparent in the wavelength band from 3 to 26 µm [3,4], which, according to Planck's law, corresponds to temperatures from 966 to 188 K. Thus, the considered optical materials can become widely used in various fields of science and technology, including laser, endoscopic and diagnostic medicine, remote thermal & spectral control of technological equipment. Materials of the AgBr−AgI system have a high photo [5], which makes it possible to use these materials without special protective filters. High stability at radiation exposure makes it possible to use these crystalline materials and IR waveguide from them under conditions of increased ionizing radiation up to doses of 500 kGy, which offers exciting possibilities for the introduction of such optical materials in nuclear energy technologies [6,7] and astronautic ones [8].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the system AgBr-AgI optical materials volt-ampere characteristics

Turabi

Акифьева

Корсаков

et al. 2022

Optics and Spectroscopy

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IR light guides based on crystals and ceramics of the AgBr-AgI system are transparent in the mid-infrared range from 2 to 25 μm, which is in demand for thermal imaging, laser technology and spectroscopy. High photo- and radiation resistance makes these materials particularly attractive. For the design of optical equipment, information is needed on the electrical properties of the material, which are most fully characterized by the current-voltage characteristic (VAC). In this work, the dependence of VAC of the studied materials in the range of compositions from 5 to 80 mol.% AgI in the system AgBr-AgI on the composition of the material and temperature in the range of 298-453 K. It has been established that an increase in the iodine content for crystalline materials of AgBr-AgI systems leads to a decrease in electrical conductivity. The values of specific conductivity under equal conditions (the same temperature and the same applied voltage) for ceramics of the AgBr-AgI system are two to three orders of magnitude higher than for crystals. The values of specific conductivity for ceramics are at the level of conductivity of solid electrolytes. At the temperature of the β-AgI-α-AgI phase transition in ceramics of the AgBr-AgI systems, a jump in conductivity is observed, which is explained by the β-AgI-α-AgI phase transition. Keywords: Solid solutions of the AgBr-AgI system, current-voltage characteristic, specific conductivity

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“…For two decades Ural Federal University has carried out research in the field of exploring and creating a new photonics' element base for optical and laser instrumentation, crystals [10,11,[25][26][27][28][29][30][31][32][33] . The key materials of our research are solid solutions of silver and monovalent thallium halides, such as AgCl-AgBr, AgBr-TlBr 0.46 I 0.54 , AgBr-TlI, AgCl-AgBr-TlBr 0.46 I 0.54 , AgCl-AgBr-TlI, AgCl-AgI, AgBr-AgI, and AgCl-AgBr-AgI.…”

Section: Introductionmentioning

confidence: 99%

“…These materials are transparent from visible to far IR, as well as in the terahertz (THz) range. Among other things, the materials have high ductility, which makes it possible to obtain windows and lenses from them by hot pressing, as well as by extrusion of fibers for the range of 2.0-25.0 μm [11,[27][28][29][30][34][35][36][37][38][39][40] .…”

Section: Introductionmentioning

confidence: 99%

Highly transparent ceramics for the spectral range from 1.0 to 60.0 µm based on solid solutions of the system AgBr–AgI–TlI–TlBr

et al. 2021

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The article is devoted to the technology for obtaining optical ceramics of AgBr−TlI and AgBr−TlBr 0.46 I 0.54 systems and manufacturing samples with different compositions. The new heterophase crystal ceramics are transparent without absorption windows in the spectral range from 1.0 to 60.0 μm. In the ceramics' transparency spectra based on the AgBr−TlI and AgBr−TlBr 0.46 I 0.54 systems fusibility diagrams, with an increase in the thallium halides mass fraction, as well as the replacement of the bromine ion with iodine, the maximum transparency shifts to a long infrared region.

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Domestic Developments of IR Optical Materials Based on Solid Solutions of Silver Halogenides and Monovalent Thallium

Cited by 30 publications

References 12 publications

Исследование вольт-амперных характеристик оптических материалов системы AgBr-AgI

Исследование вольт-амперных характеристик оптических материалов системы AgBr-AgI

Investigation of the system AgBr-AgI optical materials volt-ampere characteristics

Highly transparent ceramics for the spectral range from 1.0 to 60.0 µm based on solid solutions of the system AgBr–AgI–TlI–TlBr

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