Yttrium disilicate crystallites embedded porous sol-gel thin films for self-cleaning displays

Fernandez, Toney Teddy; Jose, Gin; Ward, Michael B.; Arunkumar, K.; Unnikrishnan, N.V.

doi:10.1063/1.3077291

Cited by 8 publications

(3 citation statements)

References 24 publications

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“…With the increase in thickness, the intensity in emission peak get decreases from 9x10 6 (t=195 nm) to 5x10 6 (t= 825 nm) at a wave length of 415 nm while there is a blue shift observes. This type of emission may be due to the presence of oxygen related defects, non bridged oxygen hole centers and organic bonds in form of -O-C-O 23 .…”

Section: Photoluminescence Studiesmentioning

confidence: 99%

Effect of Thickness on Structural and Optical Properties of Tetra‐tert‐ butyl‐2, 3‐naphthalocyanine Thin Films

Dhanya

Menon

2011

Journal of Chemistry

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Amorphous tetra-tert-butyl-2, 3-naphthalocyanine thin films have been deposited using physical vapor deposition technique under a varied thickness by adjusting the coating time. By analyzing the x-ray diffraction, the structure of as deposited films is found to be non-crystalline. Different optical properties of these thin films have been investigated by means of optical absorption and reflection spectra. Various optical constants like band gap energy, Egthe width of band tails of localized states into the gap, EUand steepness parameter, β gets calculated and the variation of different optical parameters like refractive index, extinction coefficient, dielectric constants, optical conductivity and surface and volume energy losses with photon energy are estimated.

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Section: Photoluminescence Studiesmentioning

confidence: 99%

Effect of Thickness on Structural and Optical Properties of Tetra‐tert‐ butyl‐2, 3‐naphthalocyanine Thin Films

Dhanya

Menon

2011

Journal of Chemistry

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“…[74] Besides regular structures, more random frameworks can be generated with etching/oxidation, layer-bylayer, interfacial polymerization and sol-gel methods. [75][76][77][78][79][80][81][82][83][84][85][86] However, sometimes surface morphology change needs to be avoided when generating SLPL interfaces, hence changing the surface chemical state is an alternative choice, such as UV illumination and plasma treatment. [35,39,[87][88][89][90][91][92][93] Chemical vapor deposition can obtain SLPL interfaces by depositing a thin layer with chemical reactions.…”

Section: Introduction Of the Fabrication Methods To Generate Slpl Intmentioning

confidence: 99%

Superlyophilic Interfaces and Their Applications

et al. 2017

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Superlyophilic interfaces denote interfaces displaying strong affinity to diverse liquids, including superhydrophilic, superoleophilic, and superamphiphilic interfaces. When coming in contact with these interfaces, water or oil droplets tend to spread completely with contact angles close to 0°, presenting versatile applications including self‐cleaning, antifogging, controllable liquid transport, liquid separation, and so forth. Inspired by nature, scientists have developed various kinds of artificial superlyophilic (SLPL) interfaces in the past decades. In terms of dimensional characteristics, the artificial SLPL interfaces can be divided into four categories: i) 0D particles, whose dispersibility or catalytic performance can be notably enhanced by superlyophilicity; ii) 1D micro‐/nanofibers or nanotubes/channels, which can efficiently transfer liquids with SLPL interfaces; iii) 2D flat SLPL interfaces, on which different functional molecules can be deposited uniformly, forming ultrathin and smooth films; and iv) 3D structures, which can be obtained by either constructing 0D, 1D, or 2D SLPL materials separately or directly fabricating random SLPL frameworks, and can always be used as functional coatings or bulk materials. Here, natural and artificial SLPL interfaces are briefly introduced, followed by a short discussion of the limit between lyophilicity and lyophobicity, and then a snapshot of methods to generate SLPL interfaces is given. Specific focus is placed on recent achievements of constructing SLPL interfaces from zero to three dimensions. Following that, broad applications of SLPL interfaces in commercial areas will be introduced. Finally, a short summary and outlook for future challenges in this field is presented.

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“…The porosity of the coatings enlarges the effective surface area of the coatings and enhances the photocatalytic efficiency of the TiO 2 thin films. Coating process capable of providing large-area Sol-gel processes with additives in the coating solutions have been reported to be successful for obtaining porous TiO 2 thin films with enhanced photo-catalytic efficiencies [1][2][3][4]. These additives play the principal role in the microstructure of the self-assembled porous TiO 2 coatings.…”

Section: Introductionmentioning

confidence: 99%

Self Assembly of Honeycomb TiO<sub>2</sub> Coatings by Tea-Leaf Extracts as the Dispersoids

Kamei¹

2011

WJCMP

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Photo catalytic TiO 2 coatings with well defined honeycomb structure were successfully self-assembled on glass substrates by a simple "dip and burn sol-gel method". The crux of this new method is that the starting material for the sol-gel coating (the water solution of ammonium titanium citrate) was "doped" with "tea-leaf extracts". Tea-leaf extracts were completely dissolved in the water solution of ammonium titanium citrate and nucleate uniformly during the drying procedure of the coating precursor formation. This uniformly dispersed nucleation of the "tea-leaf extracts (tannin, catechin, etc.)" were extracted during calcinations and leaving honeycomb-cell like nano-structure in the TiO 2 coatings. Self-assembled cells were uniformly distributed in the TiO 2 coatings and the diameter of the cells was in the range of 200 -1000 nm. Fine honeycomb structures were clearly observed with microscopic observations.

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Yttrium disilicate crystallites embedded porous sol-gel thin films for self-cleaning displays

Abstract: Articles you may be interested inEffect of annealing temperature on the photocatalytic activity of sol-gel derived Ti O 2 thin films

Cited by 8 publications

References 24 publications

Effect of Thickness on Structural and Optical Properties of Tetra‐tert‐ butyl‐2, 3‐naphthalocyanine Thin Films

Effect of Thickness on Structural and Optical Properties of Tetra‐tert‐ butyl‐2, 3‐naphthalocyanine Thin Films

Superlyophilic Interfaces and Their Applications

Self Assembly of Honeycomb TiO<sub>2</sub> Coatings by Tea-Leaf Extracts as the Dispersoids

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Yttrium disilicate crystallites embedded porous sol-gel thin films for self-cleaning displays

Abstract: Articles you may be interested inEffect of annealing temperature on the photocatalytic activity of sol-gel derived Ti O 2 thin films

Cited by 8 publications

References 24 publications

Effect of Thickness on Structural and Optical Properties of Tetra‐tert‐ butyl‐2, 3‐naphthalocyanine Thin Films

Effect of Thickness on Structural and Optical Properties of Tetra‐tert‐ butyl‐2, 3‐naphthalocyanine Thin Films

Superlyophilic Interfaces and Their Applications

Self Assembly of Honeycomb TiO&lt;sub&gt;2&lt;/sub&gt; Coatings by Tea-Leaf Extracts as the Dispersoids

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Product

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About

Self Assembly of Honeycomb TiO<sub>2</sub> Coatings by Tea-Leaf Extracts as the Dispersoids