Influence of spin coating rate on the thickness, surface modification and optical properties of water dispersed PPy composite thin films

Jayamurugan, P.; Ponnuswamy, V.; Rao, Yammani Venkat Subba; Ashokan, S.; Meenakshisundar, S.

doi:10.1016/j.mssp.2015.05.014

Cited by 13 publications

(5 citation statements)

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“…Based on surface observations, the methyl methacrylate layer is finer than the polystyrene layer. The difference in evenness between the two surfaces shows that a solution of methyl methacrylate has a higher homogeneous level compared to polystyrene solutions [6,27]. The flatness difference between the two layers is caused by the polystyrene solution used in this study is in the form of powder which has been dissolved with toluene as described in the research method, while methyl methacrylate from the beginning has been in the form of a solution with an assay of 99% and a density of 0.942-0.944 at a temperature of 20 o C / 4 o C, not a powder like polystyrene.…”

Section: Resultsmentioning

confidence: 99%

“…It was mixed with a magnetic stirrer for 5-6 hours until the solution became homogeneous. The ITO glass coated by MMA and polystyrene 3% with a spin speed of 1000, 1500, 2000, and 2500 rpm for 60 seconds [27][28][29]. ITO glass has two surfaces: conductor surface and non-conductor surface, therefore before the surface layer is checked first using an ohmmeter to determine the properties of both surfaces.…”

Section: Methodsmentioning

confidence: 99%

“…The results of observation by optical microscope the thickness of the layer in a pixel unit, so to get in units of micrometer then the value of the thickness is multiplied by the value of 1 pixel in units micrometer. The transmission and absorption values were obtained by measuring using the UV-Vis spectrometer (Genesys 10S UV-Vis) at wavelength (300-700) nm [27]. The cross-sectional view of the polystyrene and methyl methacrylate surfaces on ITO glass can be determined by testing using Scanning Electron Microscope (SEM)(FEI Inspect S50).…”

Section: Methodsmentioning

confidence: 99%

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Fabrication of Non Reflecting Film Based on Polystyrene and Methyl Methacrylate Using Spin Coating to Increase a Light Transmission on Ito Glass

et al. 2020

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Thin films are developed for multi-purposes, such as optical waveguides, corrosion resistant coating, car tinting, and glass coatings. Each thin film is created and designed with a specific purpose and function. The purpose of this research was to fabrication anti-reflective films on glass Indium Tin Oxide (ITO) usually used as an electrode in Dye-sensitized Solar Cell (DSSC). In this research, the material used involved solution 100.12 g/mol Methyl Methacrylate (MMA) and 3% Polystyrene(PS) with a spin coating method. In this study, polystyrene and methyl methacrylate solution dripped on ITO glass was then rotated at 1000, 1500, 2000 and 2500 rpm. This study shows that polystyrene and methyl methacrylate materials can be used as an anti-reflection coating on the ITO substrate by a spin coating method. The methyl methacrylate material is good for anti-reflection coating at 400-475 nm wavelength region, while the polystyrene material is good for 475-700 nm wavelength. The addition of a 3% polystyrene coating on ITO glass can increase light transmission at a wavelength of 475-700 nm by 1.14% when compared to ITO glass without a polystyrene coating. The highest light transmission of 90.11% occurs at a wavelength of 420 nm when the ITO glass is coated with methyl methacrylate.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Fabrication of Non Reflecting Film Based on Polystyrene and Methyl Methacrylate Using Spin Coating to Increase a Light Transmission on Ito Glass

et al. 2020

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“…There are two important factors that need to be considered while spinning the thin film coated substrate which are spin speed and spin time [26]. Optimized spin speed had been found to be at 3000 rpm, while the suitable time required for spinning TiO 2 pH sensing membrane is yet to be known.…”

Section: Spin Timementioning

confidence: 99%

Spin Speed and Duration Dependence of TiO₂Thin Films pH Sensing Behavior

et al. 2016

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Titanium dioxide (TiO2) thin films were applied as the sensing membrane of an extended-gate field-effect transistor (EGFET) pH sensor. TiO2thin films were deposited by spin coating method and the influences of the spin speed and spin duration on the pH sensing behavior of TiO2thin films were investigated. The spin coated TiO2thin films were connected to commercial metal-oxide-semiconductor field-effect transistor (MOSFET) to form the extended gates and the MOSFET was integrated in a readout interfacing circuit to complete the EGFET pH sensor system. For the spin speed parameter investigation, the highest sensitivity was obtained for the sample spun at 3000 rpm at a fixed spinning time of 60 s, which was 60.3 mV/pH. The sensitivity was further improved to achieve 68 mV/pH with good linearity of 0.9943 when the spin time was 75 s at the speed of 3000 rpm.

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“…Thus, currently growing interest has concentrated on preparation of conducting polymer thin films with controlled microstructures using different thin film deposition techniques. In this direction, researchers have employed various deposition methods to prepare conducting polymer thin films in view of spectrum of applications …”

Section: Introductionmentioning

confidence: 99%

Microstructural, wetting, and dielectric properties of plasma polymerized polypyrrole thin films

Koduru

Marino

Janardhanam

et al. 2016

J of Applied Polymer Sci

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Polypyrrole (PPy) thin films were synthesized by plasma polymerization technique and investigated the influence of discharge power on microstructural, optical, surface wettability, and dielectric properties of grown films. As deposited PPy films were characterized by X-ray diffraction (XRD), Fourier transform Infrared spectroscopy (FTIR), Atomic force microscopy, UV-VIS spectroscopy and dielectric spectroscopy. The broad XRD peak present at 2u 5 23.58 revealed the amorphous nature of grown PPy films. The FTIR spectra displayed characteristic peaks in the wavenumbers regions 3300-3400 cm 21 and 1635-1700 cm 21 and respective peaks intensities decreased slightly as a function of discharge powers. Significant modifications in surface morphology of the films were observed as a function of discharge powers and PPy films synthesized at higher discharge power of 50 W demonstrated characteristic surface morphology composed of characteristic vertical cone shaped clusters provided with rms roughness of 3.42 nm. The UV-VIS absorption spectra evidenced that the optical density values varied as a function of discharge power. The evaluated band gap energies decreased with an increase of discharge power and found to be 2.53 eV for PPy films prepared at higher discharge power of 50 W. The surface wettability studies evidenced that as prepared PPy films were found to be hydrophilic in nature. The dielectric measurements were carried out for "ITO/polymer/ITO" structures in the frequency range 10 mHz to 100 kHz. As evidenced from dielectric spectroscopic measurements, PPy films synthesized at 50 W were demonstrated conductivity value of 6.0 3 10 212 S/m.

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Influence of spin coating rate on the thickness, surface modification and optical properties of water dispersed PPy composite thin films

Cited by 13 publications

References 30 publications

Fabrication of Non Reflecting Film Based on Polystyrene and Methyl Methacrylate Using Spin Coating to Increase a Light Transmission on Ito Glass

Fabrication of Non Reflecting Film Based on Polystyrene and Methyl Methacrylate Using Spin Coating to Increase a Light Transmission on Ito Glass

Spin Speed and Duration Dependence of TiO₂Thin Films pH Sensing Behavior

Microstructural, wetting, and dielectric properties of plasma polymerized polypyrrole thin films

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Influence of spin coating rate on the thickness, surface modification and optical properties of water dispersed PPy composite thin films

Cited by 13 publications

References 30 publications

Fabrication of Non Reflecting Film Based on Polystyrene and Methyl Methacrylate Using Spin Coating to Increase a Light Transmission on Ito Glass

Fabrication of Non Reflecting Film Based on Polystyrene and Methyl Methacrylate Using Spin Coating to Increase a Light Transmission on Ito Glass

Spin Speed and Duration Dependence of TiO2Thin Films pH Sensing Behavior

Microstructural, wetting, and dielectric properties of plasma polymerized polypyrrole thin films

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Spin Speed and Duration Dependence of TiO₂Thin Films pH Sensing Behavior