Optically transparent superhydrophobic silica-based films

Shang, H.M.; Wang, Ying; Limmer, Steven J.; Chou, Tammy P.; Takahashi, Katsunori; Cao, Guozhong

doi:10.1016/j.tsf.2004.06.087

Cited by 390 publications

(225 citation statements)

References 26 publications

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“…An essential factor for the film quality is the film thickness, which is determined by the hydrolysis and condensation behavior characteristics of the precursors and depends on their concentration in the starting solution [8][9][10][11][12], the pH of the sol [13][14][15], the aging time [8,[12][13][14], the withdrawal speed [16,17], the number of immersions, and the ratio of water and precursor [8,13,14,16]. By careful control of hydrolysis and condensation reactions of selected precursors, various surface roughnesses and morphologies can be been achieved [18].…”

Section: Advantages Of Dip-coating Techniquementioning

confidence: 99%

“…Information about the surface morphology including surface area and roughness is provided by an atomic force microscopy, AFM [18][19][20]. The united power of the SEM, TEM, and AFM methods contributes to the examination of the surface morphology of thin films prepared by the sol-gel technique using different types of precursors and different parameters of the dipcoating deposition procedure [19].…”

Section: Advantages Of Dip-coating Techniquementioning

confidence: 99%

See 1 more Smart Citation

Thin Films for Immobilization of Complexes with Optical Properties

Zaharieva¹,

Milanova²

2017

Modern Technologies for Creating the Thin-Film Systems and Coatings

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Thin film deposition techniques, such as dip coating, spin coating, and spray pyrolysis, are applied for the production of SiO 2 -, poly-(methylmethacrylate) (PMMA)-, and SiO 2 -/polyester-based "hybrid" matrices. The factors influencing the film properties are briefly discussed. The morphology of the films presented is studied by different microscopy techniques such as atomic force microscopy, electron (scanning and transmission) microscopy, and fluorescence microscopy. The composites based on SiO 2 -, PMMA-, and SiO 2 /polyster "hybrid" matrices possess the optical properties of the immobilized complexes of Ru(II) and Eu(III) with different organic ligands. The preparation of the PMMA matrix by the monomer methylmethacrylate polymerization (instead of using of PMMA solution) caused partial destruction of the less stable complexes and thereby a decrease in the fluorescence intensity.

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Section: Advantages Of Dip-coating Techniquementioning

confidence: 99%

Section: Advantages Of Dip-coating Techniquementioning

confidence: 99%

Thin Films for Immobilization of Complexes with Optical Properties

Zaharieva¹,

Milanova²

2017

Modern Technologies for Creating the Thin-Film Systems and Coatings

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show abstract

“…In order for the surface to be transparent, roughness details should be smaller than the wavelength of the visible light (approx. 400-700 nm; Shang et al (2005) did not blend low-surface energy materials in the sols, but described a procedure to make transparent superhydrophobic surfaces by modifying silica-based gel films with a fluorinated silane. The superhydrophobic surfaces with high reflectivity might provide a promising self-cleaning approach in a wide variety of optical applications ranging from traffic to solar energy industries.…”

Section: New Applications: Optical Surfaces Energy and Underwater Sementioning

confidence: 99%

Multiscale effects and capillary interactions in functional biomimetic surfaces for energy conversion and green engineering

Nosonovsky

Bhushan

2009

Phil. Trans. R. Soc. A.

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Biological surfaces (plant leaves, lizard and insect attachment pads, fish scales, etc.) have remarkable properties due to their hierarchical structure. This structure is a consequence of the hierarchical organization of biological tissues. The hierarchical organization of the surfaces allows plants and creatures to adapt to energy dissipation and transition mechanisms with various characteristic scale lengths. At the same time, an addition of a micro-/nanoscale hierarchical level, for example of surface roughness, can change qualitatively the properties of a system and introduce multiple equilibriums, instability and dissipation. Thus, small roughness has a large effect. In particular, a small change of surface roughness can lead to a large change in the capillary force. The capillary effects are crucial for small-scale applications. Multiscale organization of the biomimetic surfaces and their adaptation to capillary effects make them suitable for applications using new principles of energy transition (e.g. capillary engines) and environment-friendly technologies (e.g. self-cleaning oleophobic surfaces).

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“…Different approaches have been reported to bring and bind the nanoparticles onto the surfaces to make them rough. For instance, silica particles have been coated on latex by sol-gel processing [162] or on glass by dip-coating [163]. Another example is TiC>2 nanoparticles by spray coating on cement [164] or glass [165].…”

Section: Nanoparticle-based Coatingsmentioning

confidence: 99%

Nanostructured metal surfaces and their passivation for superhydrophobic and anti-icing applications =

Safaee¹

2008

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Optically transparent superhydrophobic silica-based films

Cited by 390 publications

References 26 publications

Thin Films for Immobilization of Complexes with Optical Properties

Thin Films for Immobilization of Complexes with Optical Properties

Multiscale effects and capillary interactions in functional biomimetic surfaces for energy conversion and green engineering

Nanostructured metal surfaces and their passivation for superhydrophobic and anti-icing applications =

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