Novel Antireflection Coatings Obtained by Low-Temperature Annealing in the Presence of Tetrabutylammonium Bromide and Gold Nanoparticles

Lokteva, Alena A.; Kotelnikova, Anastasiia A.; Kovylin, Roman S.; Konev, Alexey N.; Piskunov, Alexandr V.

doi:10.3390/ma15217658

Open AccessArticle

Novel Antireflection Coatings Obtained by Low-Temperature Annealing in the Presence of Tetrabutylammonium Bromide and Gold Nanoparticles

by

Alena A. Lokteva

^*,

Anastasiia A. Kotelnikova

,

Roman S. Kovylin

,

Alexey N. Konev

and

Alexandr V. Piskunov

^*

G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 603950 Nizhny Novgorod, Russia

^*

Authors to whom correspondence should be addressed.

Materials 2022, 15(21), 7658; https://doi.org/10.3390/ma15217658

Submission received: 29 September 2022 / Revised: 21 October 2022 / Accepted: 28 October 2022 / Published: 31 October 2022

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Abstract

In this work, nanoporous antireflective coatings on silicate glass were obtained from silicon dioxide sol compositions by the sol-gel method in the presence of quaternary ammonium salt (tetrabutylammonium bromide) at different annealing temperatures (200–250 °C). Varying the salt concentration from 3 to 5 wt.%, we achieved the transmittance of the coatings of about 97% at 250 °C in comparison with 91% for clean glass in the wavelength range from 400 to 1100 nm. The addition of gold nanoparticles to the composition containing 5 wt.% tetrabutylammonium bromide allowed us to decrease the annealing temperature to 200 °C, preserving the transmittance at the level of 96.5%. For this case, the optimal concentration of gold nanoparticles is determined (2.6 × 10⁻⁹ mol/mL). According to the SEM analysis, the obtained antireflective coatings contain pores with a minimum area size up to 4 nm².

Keywords: sol compositions; antireflection coatings; tetrabutylammonium bromide; gold nanoparticles; optical properties

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MDPI and ACS Style

Lokteva, A.A.; Kotelnikova, A.A.; Kovylin, R.S.; Konev, A.N.; Piskunov, A.V. Novel Antireflection Coatings Obtained by Low-Temperature Annealing in the Presence of Tetrabutylammonium Bromide and Gold Nanoparticles. Materials 2022, 15, 7658. https://doi.org/10.3390/ma15217658

AMA Style

Lokteva AA, Kotelnikova AA, Kovylin RS, Konev AN, Piskunov AV. Novel Antireflection Coatings Obtained by Low-Temperature Annealing in the Presence of Tetrabutylammonium Bromide and Gold Nanoparticles. Materials. 2022; 15(21):7658. https://doi.org/10.3390/ma15217658

Chicago/Turabian Style

Lokteva, Alena A., Anastasiia A. Kotelnikova, Roman S. Kovylin, Alexey N. Konev, and Alexandr V. Piskunov. 2022. "Novel Antireflection Coatings Obtained by Low-Temperature Annealing in the Presence of Tetrabutylammonium Bromide and Gold Nanoparticles" Materials 15, no. 21: 7658. https://doi.org/10.3390/ma15217658

APA Style

Lokteva, A. A., Kotelnikova, A. A., Kovylin, R. S., Konev, A. N., & Piskunov, A. V. (2022). Novel Antireflection Coatings Obtained by Low-Temperature Annealing in the Presence of Tetrabutylammonium Bromide and Gold Nanoparticles. Materials, 15(21), 7658. https://doi.org/10.3390/ma15217658

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Novel Antireflection Coatings Obtained by Low-Temperature Annealing in the Presence of Tetrabutylammonium Bromide and Gold Nanoparticles

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