Fundamental understanding and modeling of spin coating process: A review

Sahu, Niranjan; Parija, B.; Panigrahi, S.

doi:10.1007/s12648-009-0009-z

Cited by 312 publications

(236 citation statements)

References 6 publications

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“…The approach to achieve homogeneity in the layer thickness and distribution required several optimisation cycles of SPEEK polymer dissolved and dropped on a silicon wafer. The viscosity and surface tension of dissolved SPEEK, could cause non-homogenous film distribution, therefore a plasma etching [59] procedure was carried out on the silicon wafers to improve affinity between the wafer and the substrate as SPEEK flow on a flat spinning substrate is one of the most important physical processes involved in SC [56] , [57]. The election of the solvent is fundamental for homogenous coating.…”

Section: Resultsmentioning

confidence: 99%

“…[5,48,54] Consequently, preparing SPEEK polymeric thin films (PTFs) by spin coating (SC) offers a novel type of polymeric support for IMS. SC is currently a predominant technique used to produce uniform thin films of organic materials with customized thicknesses of the order of micrometres and nanometres [55] , [56] , [57]. MNPs applications depend on their distribution, as well as the density of MNPs over the support.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Intermatrix Synthesis as a rapid, inexpensive and reproducible methodology for the in situ functionalization of nanostructured surfaces with quantum dots

Bastos-Arrieta

Muñoz

Stenbock-Fermor

et al. 2016

Applied Surface Science

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Multiwall Carbon Nanotubes (MWCNTs) and Nanodiamonds (NDs). The synthetic route takes advantage of the ion exchange functionality of the reactive surfaces for the loading of the QDs precursor and consequent QDs appearance by precipitation. The benefits of such modified nanomaterials were studied using CdS-QDs@MWCNTs hybrid-nanomaterials.CdS-QDs@MWCNTs has been used as conducting filler for the preparation of electrochemical nanocomposite sensors, which present electrocatalytic properties. Finally,

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Intermatrix Synthesis as a rapid, inexpensive and reproducible methodology for the in situ functionalization of nanostructured surfaces with quantum dots

Bastos-Arrieta

Muñoz

Stenbock-Fermor

et al. 2016

Applied Surface Science

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show abstract

“…Instead, the spinning process appears to be managing the time-evolution of the volume, composition and evaporation rate of the solution. [34] We plot in Figure 2a the evolution of the solution thickness calculated from the combined optical measurements throughout the 30 s duration of spin-coating, including the increase of spin-speed from 700 rpm at the 10 s mark. We observe a rapid decrease of the solution thickness from ca.…”

Section: In-situ Investigation Of the Spin-coating Processmentioning

confidence: 99%

Vertical Phase Separation in Small Molecule:Polymer Blend Organic Thin Film Transistors Can Be Dynamically Controlled

Wodo

Ren

Khan

et al. 2016

Adv Funct Materials

104

100

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Abstract:Blending of small-molecule organic semiconductors (OSCs) with amorphous polymers is known to yield high performance organic thin film transistors (OTFTs). Vertical stratification of the OSC and polymer binder into well-defined layers is crucial in such systems and their vertical order determines whether the coating is compatible with a top and/or a bottom gate OTFT configuration. Here, we investigate the formation of such blends prepared via spincoating in conditions which yield bilayer and trilayer stratifications, and use a combination of experimental and computational tools to study the competing effects of formulation thermodynamics and process kinetics in mediating the final vertical stratification. We show that trilayer stratification (OSC/polymer/OSC) is the thermodynamically favored configuration and that formation of the buried OSC layer can be kinetically inhibited in certain conditions of spincoating, resulting in a bilayer stack instead. Our analysis reveals that preferential loss of the Zhao et al., Adv. Func. Mater. 2016 2 OSC, combined with early aggregation of the polymer phase due to rapid drying, inhibit the formation of the buried OSC layer. We then moderate the fluid dynamics and drying kinetics during spin-coating to promote trilayer stratification with a high quality buried OSC layer which yields unusually high mobility >2 cm 2 V -1 s -1 in the bottom-gate top-contact configuration.

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“…Later, in 1978, Meyerhöfer reported that the dispersion caused by centrifugal force was mostly responsible for the thickness of the resultant film, nevertheless from a certain moment the film thickness was determined mainly by solvent evaporation 19 . The spin coating has some stages: the solution is deposited on the blade, the blade is accelerated until the stabilization of the adjusted rotation resulting in a uniform speed and finally, the solution ceases to be expelled by centrifugal force and the thickness control is accomplished only by solvent evaporation 20 . Figure 2 shows the complete spin coating process.…”

Section: Introductionmentioning

confidence: 99%

Low cost spinner developed for deposition of thin films used in OLED devices

Santos

Takahashi²,

Takimoto³

et al. 2018

RBAV

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This work aims the development of a compact spinner to be used inside the glove-box chamber to deposition of polymeric thin films used in the build of OLED devices. Initially, ten fans extracted of microcomputers were tested with commercial multi-voltage power supply. Four fans were selected based on the standard deviation of speed. A variable power supply was also built in order to get a more detailed response in terms of electrical current and speed in function of applied voltage. The fan that showed less variation of speed with applied voltage was selected for deposition tests using polymeric photoresist solution on the ITO (indium tin oxide) coated glass. This polymer was deposited by spin-coating at different speeds: 1000, 2000, 3000 and 4000 rpm and dried for the thicknesses measurement revealing good uniformity. Finally, three OLED devices were assembled with 2000 and 3000 rpm and the layers were dried under the same conditions. In the structure of the devices were used the materials deposited layer-by-layer: glass/ITO/PEDOT: PSS/Polyfluorene (PFpf)/Al. The OLED devices revealed blue light electroluminescence. The I-V curves showed better performance for OLED devices mounted at 2000 rpm with higher current density and similar appearance to the diode curve.

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Fundamental understanding and modeling of spin coating process: A review

Cited by 312 publications

References 6 publications

Intermatrix Synthesis as a rapid, inexpensive and reproducible methodology for the in situ functionalization of nanostructured surfaces with quantum dots

Intermatrix Synthesis as a rapid, inexpensive and reproducible methodology for the in situ functionalization of nanostructured surfaces with quantum dots

Vertical Phase Separation in Small Molecule:Polymer Blend Organic Thin Film Transistors Can Be Dynamically Controlled

Low cost spinner developed for deposition of thin films used in OLED devices

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