Preparation and application of polystyrene-grafted alumina core-shell nanoparticles for dielectric surface passivation in solution-processed polymer thin film transistors

Kim, Kimyung; Park, Min Soo; Na, Yaena; Choi, Jongwan; Jenekhe, Samson A.; Kim, Felix Sunjoo

doi:10.1016/j.orgel.2018.11.028

Cited by 15 publications

(10 citation statements)

References 37 publications

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“…The dielectric constant of the doped film proportionally increased with the filler loading of Al NPs, as shown in Figure 3b, resulting in a significant increase of the dielectric constant to 12.0 for the Al NP filler loading of 50%. This dielectric constant of 12.0 is significantly higher than that of 7.79 for the Al 2 O 3 -doped PS films reported previously [54]. More importantly, the dielectric constants of the doped films were almost frequency independent, which should be attributed to the weak interfacial polarization between the PS films and the doped Al NPs.…”

Section: Resultsmentioning

confidence: 54%

Polymer Grafted Aluminum Nanoparticles for Percolative Composite Films with Enhanced Compatibility

et al. 2019

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Aluminum nanoparticles hold promise for highly energetic materials and sustainable surface plasmonic materials. Most of the commercial Al nanoparticles are prepared via a high-throughput electrical explosion of wires method (up to 200 g h−1). However, the use of Al nanoparticles produced by an electrical explosion of wires is limited by their micrometer-sized aggregations and poor stability. Here, we use polystyrene with –COOH end-group to graft onto isolated Al nanoparticles and dramatically enhance their colloidal stability in various organic solvents. We further demonstrate that the polystyrene grafted Al nanoparticles can be doped into polystyrene films with high compatibility, leading to enhanced dielectric properties, such as higher dielectric constant, lower dielectric loss, and stronger breakdown strength. Moreover, the composite film can improve the moisture resistance of embedded Al nanoparticles.

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Section: Resultsmentioning

confidence: 54%

Polymer Grafted Aluminum Nanoparticles for Percolative Composite Films with Enhanced Compatibility

et al. 2019

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“…The nanocomposite film was found to be an efficient surface passivator for the oxide dielectric layer in organic field-effect transistors (OFETs). The field-effect mobility (1.4 × 10 –3 cm 2 /V·s) and threshold voltage (4.4 V) of OFETs with PS-Al 2 O 3 nanoparticles were found to be significantly better than that of nanocomposite with bare Al 2 O 3 nanoparticles (field-effect mobility = 1.7 × 10 –4 cm 2 /V·s threshold voltage = 6.7 V) [ 132 ].…”

Section: Grafting To Methods To Prepare Polymer Grafted Nanoparticlesmentioning

confidence: 99%

Recent Advances in the Synthesis of Polymer-Grafted Low-K and High-K Nanoparticles for Dielectric and Electronic Applications

et al. 2021

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The synthesis of polymer-grafted nanoparticles (PGNPs) or hairy nanoparticles (HNPs) by tethering of polymer chains to the surface of nanoparticles is an important technique to obtain nanostructured hybrid materials that have been widely used in the formulation of advanced polymer nanocomposites. Ceramic-based polymer nanocomposites integrate key attributes of polymer and ceramic nanomaterial to improve the dielectric properties such as breakdown strength, energy density and dielectric loss. This review describes the ”grafting from” and ”grafting to” approaches commonly adopted to graft polymer chains on NPs pertaining to nano-dielectrics. The article also covers various surface initiated controlled radical polymerization techniques, along with templated approaches for grafting of polymer chains onto SiO2, TiO2, BaTiO3, and Al2O3 nanomaterials. As a look towards applications, an outlook on high-performance polymer nanocomposite capacitors for the design of high energy density pulsed power thin-film capacitors is also presented.

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“…Traditionally, silicon oxide has been used as a gate insulator mainly because of availability and convenience. Alternative insulators include inorganic oxides with high dielectric constants, − cross-linked polymers, , self-assembled nanomaterials, and organic/inorganic hybrid layers. ,, Recently, electrolytes have attracted attention owing to their ultrahigh capacitance for reducing the voltage and its electrochemical characteristics for realizing iontronic devices. ,, Functionalities such as stretchability and self-healing capability can be introduced using elastomers as gate insulators …”

Section: Development Of Materialsmentioning

confidence: 99%

Materials Chemistry, Device Engineering, and Promising Applications of Polymer Transistors

Kim

2021

Chem. Mater.

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Organic transistors are a key building block in current organic and printable electronics. This Perspective overviews the development, applications, and opportunities of the organic transistor to provide a quick guide map and insight into the materials chemistry and engineering of organic transistors. We begin by addressing the basics of organic semiconductors, followed by the development of materials for organic transistors. The main topic of interest in materials development is semiconducting materials for the active channel in transistors. We also briefly cover electrodes and insulators. We then highlight the major issues and development noted in organic transistors when increasing the charge-carrier mobility, introducing additional functionalities, developing n-type materials, engineering processing methods, applying ionic systems, and seeking novel opportunities in devices. We also discuss the recent advances made by materials chemists and engineers in developing better-performing materials and novel electronic devices. Organic transistors are of significant interest from scientific and practical standpoints. Various applications of organic transistors can be developed on the basis of the combinations of molecular tunability, low-temperature processability, and mechanical deformability of materials.

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Preparation and application of polystyrene-grafted alumina core-shell nanoparticles for dielectric surface passivation in solution-processed polymer thin film transistors

Cited by 15 publications

References 37 publications

Polymer Grafted Aluminum Nanoparticles for Percolative Composite Films with Enhanced Compatibility

Polymer Grafted Aluminum Nanoparticles for Percolative Composite Films with Enhanced Compatibility

Recent Advances in the Synthesis of Polymer-Grafted Low-K and High-K Nanoparticles for Dielectric and Electronic Applications

Materials Chemistry, Device Engineering, and Promising Applications of Polymer Transistors

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