najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2022-13-4-464-467najo-257Research ArticleСтатьиSol-gel spin coating of dielectric reflector for energy harvesting and heat shielding applicationsDubeyR. S.noemail@neicon.ruVenkateshYepurivenkatesh.yepuri555@gmail.comSwarnandhra College of Engineering and TechnologyRussian Federation202206062025134464467Copyright © Dubey R.S., Venkatesh Y., 20252025Dubey R.S., Venkatesh Y.Dubey R.S., Venkatesh Y.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/257

There are seasonal changes in the environment temperature which leads to additional usage of various devices like air-conditioners in the summer season and space heaters in the winter season. The usage of this equipment incurs increased consumption of electricity that can result in increased usage costs. High usage of air conditioners also releases large amounts of fluorocarbons that can contribute to global warming. Hence, to minimize the usage of air-conditioners and to protect from the seasonal temperature changes it is necessary to mold the light, which can be done by dielectric optical coatings. These coatings are derived from the thin films of varying refractive index that can be fabricated by many bottom-up techniques available in nanotechnology. Herein, we report one of the bottom-up technique i.e., sol-gel spin coating technique for the fabrication of a dielectric reflector that can serve as a window for the seasonal temperature changes by filtering the ultraviolet and near-infrared spectra. The fabricated reflector was investigated with FE-SEM for thickness and layer identification and UV-VIS-NIR spectroscopy analysis for the reflectance analysis.

Ultraviolet and infrared radiationsol-gel spin coatingdielectric reflectorsmart windowReferencesHathaway J.A., Sliney D.H. Visible light and infrared radiation. In: Physical and Biological Hazards of the Workplace, Wiley online library, 2016, 203 p.Hathaway J.A., Sliney D.H. Visible light and infrared radiation. In: Physical and Biological Hazards of the Workplace, Wiley online library, 2016, 203 p.Hoel D.G., Berwick M., de Gruijl F.R., Holick M.F. The risks and benefits of sun exposure 2016. Dermatoendocrinology, 2016, 8 (1), e1248325.Hoel D.G., Berwick M., de Gruijl F.R., Holick M.F. The risks and benefits of sun exposure 2016. Dermatoendocrinology, 2016, 8 (1), e1248325.Fleury N., Geldenhuys S., Gorman S. Sun Exposure and Its Effects on Human Health: Mechanisms through Which Sun Exposure Could Reduce the Risk of Developing Obesity and Cardiometabolic Dysfunction.Int. J. of Env. Research, 2016, 13 (10), P. 1-18.Fleury N., Geldenhuys S., Gorman S. Sun Exposure and Its Effects on Human Health: Mechanisms through Which Sun Exposure Could Reduce the Risk of Developing Obesity and Cardiometabolic Dysfunction.Int. J. of Env. Research, 2016, 13 (10), P. 1-18.Calm J.M. Emissions and environmental impacts from air-conditioning and refrigeration systems.Int. J. of Refrigeration, 2002, 25 (3), P. 293-305.Calm J.M. Emissions and environmental impacts from air-conditioning and refrigeration systems.Int. J. of Refrigeration, 2002, 25 (3), P. 293-305.Hamzeh Jamali. Investigation and review of mirrors reflectance in parabolic trough solar collectors (PTSCs). Energy Reports, 2019, 5, P. 145-158.Hamzeh Jamali. Investigation and review of mirrors reflectance in parabolic trough solar collectors (PTSCs). Energy Reports, 2019, 5, P. 145-158.Sparks M. Flannery M. Simplified description of multilayer dielectric reflectors. J. of the Optical Society of America, 1979, 69 (7), P. 993-1006.Sparks M. Flannery M. Simplified description of multilayer dielectric reflectors. J. of the Optical Society of America, 1979, 69 (7), P. 993-1006.Kochergin V. Omnidirectional Dielectric Reflectors. In: Omnidirectional optical Filters, Springer Science & Business Media, Berlin, 2003, P. 105- 123.Kochergin V. Omnidirectional Dielectric Reflectors. In: Omnidirectional optical Filters, Springer Science & Business Media, Berlin, 2003, P. 105- 123.Yue Y., Gong J.P. Tunable one-dimensional photonic crystals from soft materials. J. of Photochemistry Photobiology C: Photochemistry Reviews, 2015, 23, P. 45-67.Yue Y., Gong J.P. Tunable one-dimensional photonic crystals from soft materials. J. of Photochemistry Photobiology C: Photochemistry Reviews, 2015, 23, P. 45-67.Nistico R., Scalarone D., Magnacca G. Sol-gel chemistry, templating and spin-coating deposition: A combined approach to control in a simple way the porosity of inorganic thin films/coatings. Microporous Mesoporous Materials, 2017, 248, P. 18-29.Nistico R., Scalarone D., Magnacca G. Sol-gel chemistry, templating and spin-coating deposition: A combined approach to control in a simple way the porosity of inorganic thin films/coatings. Microporous Mesoporous Materials, 2017, 248, P. 18-29.Yepuri V., Dubey R.S., Kumar B. Rapid and economic fabrication approach of dielectric reflectors for energy harvesting applications. Scientific Reports, 2020, 10, 15930.Yepuri V., Dubey R.S., Kumar B. Rapid and economic fabrication approach of dielectric reflectors for energy harvesting applications. Scientific Reports, 2020, 10, 15930.Hu X., Zhang X., Chen X., Luo M. Solution Route to Large Area All-TiO2 One-Dimensional Photonic Crystals with High Reflectivity and Different Structural Colors. Nanotechnology, 2019, 31, P. 1-9.Hu X., Zhang X., Chen X., Luo M. Solution Route to Large Area All-TiO2 One-Dimensional Photonic Crystals with High Reflectivity and Different Structural Colors. Nanotechnology, 2019, 31, P. 1-9.Ma W., Kou Y., Zhao P., Zhang S. Bioinspired Structural Color Patterns Derived from 1D Photonic Crystals with High Saturation and Brightness for Double Anti-Counterfeiting Decoration. ACS Applied Polymer Materials, 2020, 2, P. 1-9.Ma W., Kou Y., Zhao P., Zhang S. Bioinspired Structural Color Patterns Derived from 1D Photonic Crystals with High Saturation and Brightness for Double Anti-Counterfeiting Decoration. ACS Applied Polymer Materials, 2020, 2, P. 1-9.Yepuri V., Dubey R.S., Kumar B. A Low-Cost Fabrication Approach of UV, VIS and NIR Dielectric Reflectors. Advances in Materials Research. Springer Proceedings in Materials, 2021, 5, P. 355-362.Yepuri V., Dubey R.S., Kumar B. A Low-Cost Fabrication Approach of UV, VIS and NIR Dielectric Reflectors. Advances in Materials Research. Springer Proceedings in Materials, 2021, 5, P. 355-362.Romanova V.A., Matyushkin L.B. Sol-gel fabrication of one-dimensional photonic crystals. 2017 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus), 2017, 16839343.Romanova V.A., Matyushkin L.B. Sol-gel fabrication of one-dimensional photonic crystals. 2017 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus), 2017, 16839343.Taherniya A., Raoufi D. Thickness dependence of structural, optical and morphological properties of sol-gel derived TiO2 thin film. Materials Research Express, 2018, 6, P. 1-20.Taherniya A., Raoufi D. Thickness dependence of structural, optical and morphological properties of sol-gel derived TiO2 thin film. Materials Research Express, 2018, 6, P. 1-20.Bensouyad H., Sedrati H., et al. Structural, thermal and optical characterization of TiO2:ZrO2 thin films prepared by sol-gel method. Thin Solid Films, 2010, 519, P. 96-100.Bensouyad H., Sedrati H., et al. Structural, thermal and optical characterization of TiO2:ZrO2 thin films prepared by sol-gel method. Thin Solid Films, 2010, 519, P. 96-100.Nadeem M.Y., Ahmed W. Optical properties of ZnS thin films. Turkish J. of Physics, 2000, 24 (5), P. 651-659.Nadeem M.Y., Ahmed W. Optical properties of ZnS thin films. Turkish J. of Physics, 2000, 24 (5), P. 651-659.

The authors declare that there are no conflicts of interest present.