Double-layer tri-wavelength hydrophobic antireflective coatings derived from methylated silica nanoparticles and hybrid silica nanoparticles
Source abstract
Abstract
In this paper, we reported the design and preparation of a double-layer antireflective (AR) coating, which possessed relatively high transmittance at 351, 527, and 1053 nm. The refractive indices and film thicknesses of the under layer and upper layer of the simulated AR coating were determined as 1.27, 95 nm and 1.18, 106 nm, respectively. The under layer of the double-layer coating dip-coated from a mixture of base-catalyzed and acid-catalyzed silica sols had a refractive index of 1.27. The upper layer fabricated by the deposition of methylated silica nanoparticles by simply adding methyltriethoxysilane into the base-catalyzed silica sols possessed a refractive index of 1.18. The hydrophobicity of coatings could be dramatically improved with the water contact angle increasing from 23.4° to 150.0°, and the refractive indices of the pure base-catalyzed silica coatings were easily decreased from 1.20 to 1.12 through the surface treatment of silica nanoparticles. Thus, we have successfully prepared a double-layer AR coating, which had a high transmittance of 99.8%, 96.1%, and 99.7% at 351, 527, and 1053 nm, respectively.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Optical Coatings and Gratings · Surface Modification and Superhydrophobicity · Advanced Fiber Optic Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (24)
Show source-provided references
1. Zhang XX, Cai S, You D, Yan LH, Lv HB, Yuan XD, Jiang B (2013) Template‐free sol-gel preparation of superhydrophobic ORMOSIL films for double-wavelength broadband antireflective coatings. Adv Funct Mater 23(35):4361–436510.1002/adfm.201203059 ↗
2. Bruynooghe S, Tonova D, Sundermann M, Koch T, Schulz U (2015) Antireflection coatings combining interference multilayers and a nanoporous MgF2 top layer prepared by glancing angle deposition. Surf Coat Technol 267:40–4410.1016/j.surfcoat.2014.09.063 ↗
3. Thomas IM (1986) High laser damage threshold porous silica antireflective coating. Appl Opt 25(9):1481–148310.1364/AO.25.001481 ↗
4. Yoldas BE, Partlow DP (1985) Formation of broad band antireflective coatings on fused silica for high power laser applications. Thin Solid Films 129(1):1–1410.1016/0040-6090(85)90089-6 ↗
5. Ding R, Cui X, Zhang C, Zhang C, Xu Y (2015) Tri-wavelength broadband antireflective coating built from refractive index controlled MgF2 films. J Mater Chem C 3(13):3219–322410.1039/C4TC02542C ↗
6. Ye L, Zhang X, Zhang Y, Li Y, Zheng W, Jiang B (2016) Three-layer tri-wavelength broadband antireflective coatings built from refractive indices controlled silica thin films. J Sol-Gel Sci Technol 80(1):1–910.1007/s10971-016-4051-y ↗
7. Xu Y, Zhang B, Fan WH, Wu D, Sun YH (2003) Sol-gel broadband anti-reflective single-layer silica films with high laser damage threshold. Thin Solid Films 440(1):180–18310.1016/S0040-6090(03)00828-9 ↗
8. Thomas IM (1992) Method for the preparation of porous silica antireflection coatings varying in refractive index from 1.22 to 1.44. Appl Opt 31(28):6145–614910.1364/AO.31.006145 ↗
9. Xiao B, Xia B, Lv H, Zhang X, Jiang B (2012) Sol-gel preparation of double-layer tri-wavelength antireflective coating. J Sol-gel Sci Technol 64(2):276–28110.1007/s10971-012-2766-y ↗
10. Tao C, Yan H, Yuan X, Yin Q, Zhu J, Ni W, Yan L, Zhang L (2016) Detailed analysis and formation mechanism of superhydrophobic antireflective coatings with adjustable refractive index from trimethylsilanized silica nanoparticles. J Sol-Gel Sci Technol 80(1):10–1810.1007/s10971-016-4056-6 ↗
11. Iler KR (1979) The chemistry of silica: solubility, polymerization, colloid and surface properties and biochemistry of silica, Wiley, Hoboken, New Jersey
12. Prakash SS, Brinker CJ, Hurd AJ, Rao SM (1995) Silica aerogel films prepared at ambient pressure by using surface derivatization to induce reversible drying shrinkage. Nature 374(6521):43910.1038/374439a0 ↗
13. Rao AP, Rao AV, Pajonk G (2007) Hydrophobic and physical properties of the ambient pressure dried silica aerogels with sodium silicate precursor using various surface modification agents. Appl Surf Sci 253(14):6032–604010.1016/j.apsusc.2006.12.117 ↗
14. Tao C, Yan H, Yuan X, Yin Q, Zhu J, Ni W, Yan L, Zhang L (2016) Hydrophobic antireflective coatings with ultralow refractive index synthesized by deposition of methylated hollow silica nanoparticles. Mater Lett 183:374–37710.1016/j.matlet.2016.07.042 ↗
15. Tao C, Yan H, Yuan X, Yin Q, Zhu J, Ni W, Yan L, Zhang L (2016) Sol-gel based antireflective coatings with superhydrophobicity and exceptionally low refractive indices built from trimethylsilanized hollow silica nanoparticles. Colloids Surf A Physicochem Eng Asp 509:307–31310.1016/j.colsurfa.2016.08.055 ↗
16. Tao C, Yan H, Yuan X, Yin Q, Zhu J, Ni W, Yan L, Zhang L (2016) Sol–gel preparation of moisture-resistant antireflective coatings from novel hollow silica nanoparticles. J Sol-Gel Sci Technol 80(2):1–1010.1007/s10971-016-4125-x ↗
17. Komori Y, Nakashima H, Hayashi S, Sugahara Y (2005) Silicon-29 cross-polarization/magic-angle-spinning NMR study of inorganic-organic hybrids: homogeneity of sol-gel derived hybrid gels. J Non-Cryst Solids 351(2):97–10310.1016/j.jnoncrysol.2004.10.005 ↗
18. Choi JY, Chong HK, Kim DK (1998) Formation and characterization of monodisperse, spherical organo-silica powders from organo-alkoxysilane-water system. J Am Ceram Soc 81(5):1184–118810.1111/j.1151-2916.1998.tb02466.x ↗
19. Arkhireeva A, Hay JN (2003) Synthesis of sub-200 nm silsesquioxane particles using a modified Stöber sol-gel route. J Mater Chem 13(12):3122–312710.1039/B306994J ↗
20. Diré S, Babonneau F, Sanchez C, Livage J (1992) Sol-gel synthesis of siloxane-oxide hybrid coatings [Si(CH3)2O·MOx: M = Si, Ti, Zr, Al] with luminescent properties. J Mater Chem 2(2):239–24410.1039/JM9920200239 ↗
21. Dirè S, Tagliazucca V, Callone E, Quaranta A (2011) Effect of functional groups on condensation and properties of sol-gel silica nanoparticles prepared by direct synthesis from organoalkoxysilanes. Mater Chem Phys 126(3):909–91710.1016/j.matchemphys.2010.12.015 ↗
22. Cai S, Zhang Y, Zhang H, Yan H, Lv H, Jiang B (2014) Sol-gel preparation of hydrophobic silica antireflective coatings with low refractive index by base/acid double-step catalysis. ACS Appl Mater Interfaces 6(14):1147010.1021/am501972y ↗
23. Thomas AIM, Burnham AK, Ertel JR, Frieders SC (1999) Method for reducing the effect of environmental contamination of sol-gel optical coatings. Proc SPIE Int Soc Opt Eng 3492:220–229
24. Zhang X, Zhuang M, Miao X, Su W, Lin M, Lin L, Ye L, Yan L, Yang W, Jiang B (2014) Environment-resistant fluoro-containing antireflective coatings for high-powered laser systems. RSC Adv 4(90):48872–4887510.1039/C4RA05449K ↗