High-Resolution Organic Light-Emitting Diodes Patterned via Contact Printing

Li, Jinhai; Xu, Liang; Tang, Ching Wan; Shestopalov, Alexander A.

doi:10.1021/acsami.6b05286

Cited by 51 publications

(50 citation statements)

References 32 publications

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“…PVDF as a hydrophobic and engineering thermoplastic has received great attention in the preparation of composite membranes owing to the fine performance on durability, stability, and chemical resistance . The property could be tuned and the wide use of the modified PVDF membranes was expected like other polymers with excellent machinability . In the field of PEMs, PVDF and its copolymers were considered to be the replacements for the expensive fluorinated membranes, and the relative researches have been performed in succession .…”

Section: Introductionmentioning

confidence: 99%

Investigation on carbon nanotube oxide for anhydrous proton exchange membranes application

Pan

Jia

Duan

et al. 2019

J of Applied Polymer Sci

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The widespread participation of polymers in the membrane preparation has been considering to be critical for the development of proton exchange membranes (PEMs). For the polymers without functional groups to conduct protons, the introduction of proton conduction carriers with the formation of composite membranes is an effective strategy to prepare PEMs with the outstanding proton conductivity. However, there remains a potential risk of the components leaking from composite membranes due to the lack of the interaction force. Here, the composite of carbon nanotube oxide (OCNT) assembling with cadmium telluride (CdTe) and 1‐butyl‐3‐methylimidazolium hexafluorophosphate (bmimPF6) was introduced into the system of phosphoric acid (PA) doping poly(vinylidene fluoride) (PVDF) with the formation of PVDF/OCNT‐CdTe‐bmimPF6/85%PA membranes. PA molecules are anchored by the inorganics of OCNT‐CdTe‐bmimPF6 and are stabilized in membranes. The high and stable proton conductivity values at the elevated temperature are obtained comparing the reported PVDF/bmimPF6/PA membranes. Specifically, the proton conductivity value reached 1.28 × 10−1 S/cm at 160 °C and the value is stable 1.70 × 10−2 S/cm at 120 °C lasting for 350 h. The fine stability in components could make the membranes extricate from the predicament of proton conductivity decline exceeding 120 °C under anhydrous conditions in PVDF/bmimPF6/PA membranes. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48833.

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Section: Introductionmentioning

confidence: 99%

Investigation on carbon nanotube oxide for anhydrous proton exchange membranes application

Pan

Jia

Duan

et al. 2019

J of Applied Polymer Sci

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“…The permeation flux and fouling characteristics of membranes can be strongly affected by hydrophilicity, which is generally expressed in terms of contact angle of a single drop on the membrane surface. The lower contact angle of a drop on the membrane surface shows the higher wettability of the surface . In order to characterize the hydrophilicity of the prepared electrospun membranes surface water contact angle measurement was performed.…”

Section: Resultsmentioning

confidence: 99%

“…The lower contact angle of a drop on the membrane surface shows the higher wettability of the surface. [39][40][41] In order to characterize the hydrophilicity of the prepared electrospun membranes surface water contact angle measurement was performed. A 4 mL deionized water droplet was dispensed on the three different points on the membrane surface and the images of droplets were captured after reaching the constant value.…”

Section: Hydrophilicitymentioning

confidence: 99%

Biofouling alleviation and flux enhancement of electrospun PAN microfiltration membranes by embedding of para‐aminobenzoate alumoxane nanoparticles

Moradi

Rajabi

Dabirian

et al. 2017

J of Applied Polymer Sci

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Membrane bioreactor (MBR) as a hybrid technology for wastewater treatment is becoming more popular for wastewater treatment. However, membrane fouling has hindered the widespread application of MBRs. Many efforts have been done for fouling mitigation. In this study, high flux and antifouling microfiltration membranes with unique surface structure, high surface porosity, and permeability were prepared by electrospinning technique. Initially, the optimum thickness of electrospun polyacrylonitrile (PAN) membranes was determined and then, electrospun PAN membrane at optimum thickness were prepared by embedding para‐aminobenzoate alumoxane (PABA) nanoparticles at different concentrations. The effect of PABA nanoparticles on membrane performance was investigated. To investigate the characterization of the prepared membranes Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, energy dispersive X‐ray spectroscopy, and water contact angle measurement were employed. The flux recovery ratio results revealed that the antifouling properties of the electrospun PAN membrane were enhanced by modification. The 3 wt % electrospun PABA embedded PAN had the best permeability, hydrophilicity, and antifouling properties among the fabricated membranes and showed remarkable reusability during filtration. The results obtained suggested that the high flux and antifouling electrospun PAN membranes embedded PABA nanoparticles could be used as MBR membranes. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45738.

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“…Using conventional color patterning methods such as FMM and inkjet printing, it is very difficult to fabricate such high pixel densities. Recently, several groups have reported fabrication methods capable of realizing a high-resolution OLED display, such as a contact printing technique [7] and electrohydrodynamic (EHD) jet printing [4]. However, the contact printing process can degrade the interfaces of sensitive organic materials, and the process time can be a problem for industrial applications of EHD jet printing.…”

Section: Introductionmentioning

confidence: 99%

P‐73: High‐Resolution Color Patterning of an OLED Device via Capillary‐Induced Ink Filling and a Sublimation Transfer Process

Cho

Jeong

Lee

et al. 2019

Symp Digest of Tech Papers

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We studied capillary‐induced ink transfer technology in order to achieve a breakthrough in relation to the fabrication of a high‐resolution color patterning for OLED display. In this approach, the selective surface treatment of a donor substrate, capillary‐induced ink filling, and a solidified ink sublimation transfer technique are important processes. We investigated the characteristics of ink as it was filled into microchannels and the sublimation transfer characteristics of EML films in accordance with the volume fraction of 1,2‐dichlorobenznene (oDCB) (oDCB/T) and the spin speeds. Through a selective surface treatment, red EML ink was successfully deposited into the microchannels using a conventional spin‐coating process. With the optimized ink filling properties and the sublimation transfer process, we fabricated phosphorescent OLED devices with striped EML patterns. Finally, we demonstrated that a red EML layer can be patterned with a width of 14 µm and pitch of 36.1 µm (700 ppi).

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High-Resolution Organic Light-Emitting Diodes Patterned via Contact Printing

Cited by 51 publications

References 32 publications

Investigation on carbon nanotube oxide for anhydrous proton exchange membranes application

Investigation on carbon nanotube oxide for anhydrous proton exchange membranes application

Biofouling alleviation and flux enhancement of electrospun PAN microfiltration membranes by embedding of para‐aminobenzoate alumoxane nanoparticles

P‐73: High‐Resolution Color Patterning of an OLED Device via Capillary‐Induced Ink Filling and a Sublimation Transfer Process

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