Preparation of superhydrophilic silicate coating by sol–gel for double-wavelength broadband antireflective coatings
Source abstract
Abstract
In the process of realizing double-wavelength broadband antireflection (AR) coatings, it is very important to control the refractive index in a wide range, but at present, many methods of adjusting the refractive index are too complex or expensive. Here, a simple and inexpensive sol–gel route is proposed to prepare the superhydrophilic silica (SiO2) thin films having ultra-low refractive indices by the SiO2 particles surface corrosion with hydrofluoric acid (HF) in sol; this treatment effectively reduces the refractive index of the coating from 1.22 to 1.11. The formation mechanism of the coatings with ultra-low refractive index was discussed in detail. The corrosion of HF on the particles surface significantly improves the hydrophilicity of the coating, and reduces the water contact angle of the coating from 27° to 2°. The bottom layer is prepared by mixing the acid–base complex silica sol. When the refractive indices of the bottom and top layers were set as 1.29 and 1.13, the double-layer double-wavelength AR coating with excellent optical properties has the transmittance of 99.95% and 100.00% at 532 and 1064 nm, respectively.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Surface Modification and Superhydrophobicity · Advanced Fiber Optic Sensors · Optical Coatings and Gratings
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (40)
Show source-provided references
1. Shao L, Liu H, Zeng W, Zhou C, Li D, Wang L, Lan Y, Xu F, Liu G (2019) Immobilized and photocatalytic performances of PDMS-SiO2-chitosan@ TiO2 composites on pumice under simulated sunlight irradiation. Appl Surf Sci 478:1017–102610.1016/j.apsusc.2019.02.060 ↗
2. 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 two-step catalysis. ACS Appl Mater interfaces 6(14):11470–1147510.1021/am501972y ↗
3. Togasawa R, Tenjimbayashi M, Matsubayashi T, Moriya T, Manabe K, Shiratori S (2018) A fluorine-free slippery surface with hot water repellency and improved stability against boiling. ACS Appl Mater interfaces 10(4):4198–420510.1021/acsami.7b15689 ↗
4. Sta I, Jlassi M, Hajji M, Boujmil MF, Jerbi R, Kandyla M, Kompitsas M, Ezzaouia H (2014) Structural and optical properties of TiO2 thin films prepared by spin coating. J Sol-Gel Sci Technol 72(2):421–42710.1007/s10971-014-3452-z ↗
5. Han Z, Feng X, Guo Z, Niu S, Ren L (2018) Flourishing bioinspired antifogging materials with superwettability: progresses and challenges. Adv Mater 30(13):170465210.1002/adma.201704652 ↗
6. Yuan Y, Lu X, Yan G, Hong R (2017) Sol-gel preparation of antireflective coatings with abrasion resistance by base/acid double catalysis and surface treatment. Sol Energy 155:1366–137210.1016/j.solener.2017.08.003 ↗
7. Lin W, Sun Y, Zheng J, Zheng Y, Yan L, Jiang B, Yang W, Chen H, Zhang X (2018) Surface modification of sol-gel silica antireflective coatings by F-PMHS: a simple method for improvement of amphiphobicity. Coatings 8(2):5710.3390/coatings8020057 ↗
8. Thomas IM (ed.) (1997) Two-layer broadband antireflective coating prepared from methyl silicone and porous silica. Sol-Gel Optics IV. International Society for Optics and Photonics, Livermore, CA, pp. 215–22010.1117/12.284123 ↗
9. Zhang XA, Chen I-T, Chang C-H (2019) Recent progress in near-field nanolithography using light interactions with colloidal particles: from nanospheres to three-dimensional nanostructures. Nanotechnology 30(35):35200210.1088/1361-6528/ab2282 ↗
10. Zou X, Tao C, Yang K, Yang F, Lv H, Yan L, Yan H, Li Y, Xie Y, Yuan X (2018) Rational design and fabrication of highly transparent, flexible, and thermally stable superhydrophobic coatings from raspberry-like hollow silica nanoparticles. Appl Surf Sci 440:700–71110.1016/j.apsusc.2018.01.159 ↗
11. Askar K, Gu Z, Leverant CJ, Wang J, Kim C, Jiang B, Jiang P (2018) Self-assembled nanoparticle antireflection coatings on geometrically complex optical surfaces. Opt Lett 43(21):5238–524110.1364/OL.43.005238 ↗
12. Reid B, Taylor A, Chen Y, Schmidt-Hansberg B, Guldin S (2018) Robust operation of mesoporous antireflective coatings under variable ambient conditions. ACS Appl Mater interfaces 10(12):10315–1032110.1021/acsami.7b18299 ↗
13. Chi F, Yan L, Lv H, Jiang B (2011) Novel pathways for the preparation of silica antireflective films: Improvement in mechanical property. Mater Lett 65(7):1095–109710.1016/j.matlet.2011.01.025 ↗
14. Ikari K, Suzuki K, Imai H (2006) Structural control of mesoporous silica nanoparticles in a binary surfactant system. Langmuir 22(2):802–80610.1021/la0525527 ↗
15. Xia B, Zhang Q, Yao S, Zhang Y, Xiao B, Jiang B (2014) Sol–gel silica antireflective coating with enhanced abrasion-resistance using polypropylene glycol as porogen. J sol-gel Sci Technol 71(2):291–29610.1007/s10971-014-3362-0 ↗
16. Du Y, Luna LE, Tan WS, Rubner MF, Cohen RE (2010) Hollow silica nanoparticles in UV− visible antireflection coatings for poly (methyl methacrylate) substrates. ACS nano 4(7):4308–431610.1021/nn101033y ↗
17. Floch HG, Belleville PF, Pegon PM, Dijonneau CS, Guerain JR (1995) In: Sol gel optical thin films for an advanced megajoule-class Nd: glass-laser ICF driver. 27th Annual Boulder Damage Symposium: Laser-Induced Damage in Optical Materials. International Society for Optics and Photonics, Boulder, Colorado, USA, pp. 521–537
18. 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 ↗
19. Sun J, Cui X, Zhang C, Zhang C, Ding R, Xu Y (2015) A broadband antireflective coating based on a double-layer system containing mesoporous silica and nanoporous silica. J Mater Chem C 3(27):7187–719410.1039/C5TC00986C ↗
20. Zou L, Li X, Zhang Q, Shen J (2014) An abrasion-resistant and broadband antireflective silica coating by block copolymer assisted sol-gel method. Langmuir 30(34):10481–1048610.1021/la502397e ↗
21. Stöber W, Fink A, Bohn E (1968) Controlled growth of monodisperse silica spheres in the micron size range. J Colloid Interface Sci 26(1):62–6910.1016/0021-9797(68)90272-5 ↗
22. Li Y, Lv H, Ye L, Yan L, Zhang Y, Xia B, Yan H, Jiang B (2015) Preparation of porous silica films in a binary template system for double-layer broadband antireflective coatings. RSC Adv 5(26):20365–2037010.1039/C4RA17141A ↗
23. Zalavadia AA (2018) Broadly tunable surface plasmon-coupled wavelength filter for visible and near infrared hyperspectral imaging. Cleveland State University, Columbus, Ohio
24. Sun Y, Hu X, Zhang H, Lai F, Zheng Y, Yan L, Ye L, Yang W, Chen H, Zhang X (2016) SiO 2–ORMOSIL double-layered broadband antireflective coating for high-power laser system. J Sol-Gel Sci Technol 79(3):558–56310.1007/s10971-016-4042-z ↗
25. Prevo BG, Hwang Y, Velev OD (2005) Convective assembly of antireflective silica coatings with controlled thickness and refractive index. Chem Mater 17(14):3642–365110.1021/cm050416h ↗
26. Van Blaaderen A, Kentgens A (1992) Particle morphology and chemical microstructure of colloidal silica spheres made from alkoxysilanes. J Non-Crystalline Solids 149(3):161–17810.1016/0022-3093(92)90064-Q ↗
27. Win KY, Feng S-S (2005) Effects of particle size and surface coating on cellular uptake of polymeric nanoparticles for oral delivery of anticancer drugs. Biomaterials 26(15):2713–272210.1016/j.biomaterials.2004.07.050 ↗
28. Raetzke S, Kindersberger J (2006) The effect of interphase structures in nanodielectrics. IEEJ Trans Fundamentals Mater 126(11):1044–104910.1541/ieejfms.126.1044 ↗
29. Zhang X-X, Cai S, You D, Yan L-H, Lv H-B, Yuan X-D, 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 ↗
30. Hattori H (2001) Anti‐reflection surface with particle coating deposited by electrostatic attraction. Adv Mater 13(1):51–5410.1002/1521-4095(200101)13:1<51::AID-ADMA51>3.0.CO;2-F ↗
31. 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 ↗
32. Ulmeanu M, Serghei A, Mihailescu I, Budau P, Enachescu M (2000) C–Ni amorphous multilayers studied by atomic force microscopy. Appl Surf Sci 165(2–3):109–11510.1016/S0169-4332(00)00362-7 ↗
33. Li Y, Xia B, Jiang B (2018) Thermal-induced durable superhydrophilicity of TiO 2 films with ultra-smooth surfaces. J Sol-Gel Sci Technol 87(1):50–5810.1007/s10971-018-4684-0 ↗
34. Li X, Wang Y, Wang R, Wang S, Zang D, Geng X (2018) A dip‐decoating process for producing transparent bi‐superhydrophobic and wrinkled water surfaces. Adv Mater Interfaces 5(15):180035610.1002/admi.201800356 ↗
35. Du X, He J (2011) Facile fabrication of hollow mesoporous silica nanospheres for superhydrophilic and visible/near-IR antireflection coatings. Chemistry 17(29):8165–817410.1002/chem.201003272 ↗
36. Son J, Kundu S, Verma LK, Sakhuja M, Danner AJ, Bhatia CS, Yang H (2012) A practical superhydrophilic self cleaning and antireflective surface for outdoor photovoltaic applications. Sol Energy Mater Sol Cells 98:46–5110.1016/j.solmat.2011.10.011 ↗
37. Parkin IP, Palgrave RG (2005) Self-cleaning coatings. J Mater Chem 15(17):1689–1695
38. Nishimoto S, Bhushan B (2013) Bioinspired self-cleaning surfaces with superhydrophobicity, superoleophobicity, and superhydrophilicity. RSC Adv 3(3):671–69010.1039/C2RA21260A ↗
39. Das S, Kumar S, Samal SK, Mohanty S, Nayak SK (2018) A review on superhydrophobic polymer nanocoatings: recent development and applications. Ind Eng Chem Res 57(8):2727–274510.1021/acs.iecr.7b04887 ↗
40. Ye L, Zhang Y, Song C, Li Y, Jiang B (2017) A simple sol-gel method to prepare superhydrophilic silica coatings. Mater Lett 188:316–31810.1016/j.matlet.2016.09.043 ↗