2016
DOI: 10.1007/s10971-016-4056-6
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Detailed analysis and formation mechanism of superhydrophobic antireflective coatings with adjustable refractive index from trimethylsilanized silica nanoparticles

Abstract: This paper dealt with the fabrication of sol-gelderived organically modified silica (ormosil) films on glasses from trimethylsilanized silica nanoparticles (SNPs) using hexamethylisilazane (HMDS) as the modification agent. The prepared sols were suitable for large-area processing with ease of coating and being directly applicable without requiring any pre-or post-treatment. By a dipcoating process, these HMDS-treated sols gave antireflective (AR) coatings exhibiting precisely tunable refractive indices ranging… Show more

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Cited by 22 publications
(3 citation statements)
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“…In another work, an acid-catalyzed sol-gel technique was optimized to fabricate SiO 2 , which was then deposited on glass for sintering in a conventional furnace at temperatures ranging from 350 to 550 • C for 1 h. The prepared ARCs exhibited broadband anti-reflection properties across the spectral response range of multijunction solar cells. By fine-tuning the process in the visible light range, the coating achieved 6% anti-reflection [24]. In addition, researchers are also interested in fabricating materials with hierarchical porosity, which can optimize the preparation processes of porous ARCs [25,26].…”
Section: Introductionmentioning
confidence: 99%
“…In another work, an acid-catalyzed sol-gel technique was optimized to fabricate SiO 2 , which was then deposited on glass for sintering in a conventional furnace at temperatures ranging from 350 to 550 • C for 1 h. The prepared ARCs exhibited broadband anti-reflection properties across the spectral response range of multijunction solar cells. By fine-tuning the process in the visible light range, the coating achieved 6% anti-reflection [24]. In addition, researchers are also interested in fabricating materials with hierarchical porosity, which can optimize the preparation processes of porous ARCs [25,26].…”
Section: Introductionmentioning
confidence: 99%
“…To overcome the performance degradation of the sol–gel silica coatings, varieties of amphiphobic groups such as organosilane, fluoroalkylsilane, and polymers have been introduced onto the SNP surface of the coatings to enable the coating to be contamination-resistant. Sun et al grafted fluoroalkylsilane on the surface of ordered cagelike mesoporous silica coatings (MSCs) so as to close the open pore entrance.…”
Section: Introductionmentioning
confidence: 99%
“…One is to improve the hydrophobic nature of silica thin films because it is closely linked to the durability of the AR coating [13]. There have been many attempts to prepare silica AR coatings with improved hydrophobicity by the introduction of organic molecules or polymers bearing hydrophobic groups into the coatings [14][15][16][17][18][19][20]. However, in order to achieve satisfiable environmental resistance, these methods need to add large amounts of polymer or hydrophobic silane precursors to give the AR coatings enough hydrophobic groups.…”
Section: Introductionmentioning
confidence: 99%