Synthesis technology of composites based on polymers and perovskite nanocrystals for application as radiation converter of a spark sensor

Pleshanov I.M., Marasanov D.V., Zelenkov L.E., Belorus A.O.

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Плешанов И.М., Марасанов Д.В., Зеленков Л.Е., Белорус А.О. Технология создания композитов на основе полимеров и нанокристаллов перовскитов для применений в качестве преобразователей излучения датчика искры // Оптический журнал. 2023. Т. 90. № 8. С. 111–119. http://doi.org/10.17586/1023-5086-2023-90-08-111-119

For citation (Journal of Optical Technology):

Ilya M. Pleshanov, Dmitriy V. Marasanov, Lev E. Zelenkov, and Anton O. Belorus, "Synthesis technology of composites based on polymers and perovskite nanocrystals for application as a radiation converter of a spark sensor," Journal of Optical Technology. 90(8), 486-490 (2023). https://doi.org/10.1364/JOT.90.000486

Abstract:

Subject of study. The paper presents a technology for obtaining nanocomposite polymer structures (films) and their application in luminescent spark sensors with a spectral radiation converter. CsPbBr₃ inorganic perovskite nanocrystals introduced by encapsulation into the polymer structure of polydimethylsiloxane act as a converter of the spark radiation into the visible region of the spectrum. The aim of this work is to develop a technology for obtaining the composite structures based on polydimethylsiloxane polymer and CsPbBr₃ perovskite nanocrystals to protect perovskite nanocrystals from degradation and to show the fundamental possibility of using the composite materials as radiation converters of the fiber-optic spark sensor. Method. The method of encapsulating nanocrystals in a polymer structure was used as a technique for creating the polydimethylsiloxane-CsPbBr₃ composite structure. The efficiency of the optical system was calculated using numerical simulation. Main results. The luminescence, absorption and quantum yield spectra of inorganic perovskites and composite structures based on inorganic CsPbBr₃ and polydimethylsiloxane perovskitesare analyzed. The degradation properties of the composite structure were studied for 10 months. The full width at half maximum characteristics for the luminescence spectra of composite structures based on CsPbBr₃ and polydimethylsiloxane perovskite nanocrystals have been calculated. The modeling of optic sensor system has been carried out, the optical efficiency of using the composite structure has been calculated, and the fundamental possibility of using it for application as radiation converters of optical spark sensors has been shown. Practical significance. The studied composite materials based on CsPbBr₃ and polydimethylsiloxane perovskite nanocrystals obtained by means of the developed technology can be used as radiation converters in position-sensitive fiber-optic spark sensors, as well as in various other optical and optoelectronic devices.

Keywords:

polymers, composite material, polydimethylsiloxane, perovskite nanocrystals, luminescence, spark, fiber-optic sensors, radiation converters

OCIS codes: 060.2380, 230.0230, 160.2540.

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