High electroluminescence of the ZnS:Mn nanoparticle/cyanoethyl-resin polymer/single-walled carbon nanotube composite using the tandem structure

Kim, Jin‐Young; Park, Shang Hyeun; Jeong, Tae Moon; Bae, Min Jong; Kim, Yong Churl; Han, In Taek; Yu, SeGi

doi:10.1039/c2jm33131d

Cited by 16 publications

(12 citation statements)

References 28 publications

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“…Polymer‐based dielectric films have been considered for use in electroluminescent devices, gate dielectrics, electrical energy storage, and touch panel devices due to their high flexibility, low temperature processing conditions, and simple fabrication process . However, these polymer films generally have low dielectric constants, and thus yield low performance in electronic devices.…”

Section: Introductionmentioning

confidence: 99%

“…Carbon‐based nanostructures, e.g., carbon nanotubes (CNTs) and graphene, have attracted much attention for electrical device applications, such as transparent conductive films, field‐effect transistors, field emitters, electroluminescent devices, and supercapacitors, owing to their electrical and mechanical properties . Recently, these nanostructures have been considered for high‐k dielectric composite film applications.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Dielectric Performance in Polymer Composite Films with Carbon Nanotube‐Reduced Graphene Oxide Hybrid Filler

Kim

Suk

et al. 2014

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The electrical conductivity and the specific surface area of conductive fillers in conductor-insulator composite films can drastically improve the dielectric performance of those films through changing their polarization density by interfacial polarization. We have made a polymer composite film with a hybrid conductive filler material made of carbon nanotubes grown onto reduced graphene oxide platelets (rG-O/CNT). We report the effect of the rG-O/CNT hybrid filler on the dielectric performance of the composite film. The composite film had a dielectric constant of 32 with a dielectric loss of 0.051 at 0.062 wt% rG-O/CNT filler and 100 Hz, while the neat polymer film gave a dielectric constant of 15 with a dielectric loss of 0.036. This is attributed to the increased electrical conductivity and specific surface area of the rG-O/CNT hybrid filler, which results in an increase in interfacial polarization density between the hybrid filler and the polymer.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhanced Dielectric Performance in Polymer Composite Films with Carbon Nanotube‐Reduced Graphene Oxide Hybrid Filler

Kim

Suk

et al. 2014

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118

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“…The EL properties of devices were measured by applying a sinusoidal AC voltage (peak to peak value). The details of the measurement for the EL device can be found in the previous work [3,5,6]. …”

Section: Methodsmentioning

confidence: 99%

“…dielectric film [3,7,8]. In order to prevent the catastrophic dielectric breakdown for the EL device, a dielectric layer is needed.…”

Section: Introductionmentioning

confidence: 99%

Effect of halohydrocarbon solvents on the dielectric performance of a polymer film and its application to inorganic electroluminescent devices

Kim

2015

Materials Chemistry and Physics

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“…Introduction: Recently, polymer-based dielectric films have attracted interest for potential uses in polymer electronics and displays owing to their simple fabrication process, high flexibility and so on [1][2][3]. However, polymer dielectric films usually have low dielectric constants compared with inorganic dielectric films.…”

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confidence: 99%

Effect of chlorine‐containing polymer additive on dielectric performance of polymer dielectric films

Kim

Park

2014

Electron. lett.

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A polymer dielectric film with chlorine (Cl)-containing polymer additives was fabricated to investigate the effect of additives on dielectric performance. Polychlorostyrene or polyvinyl chloride (PVC) was used as a polymer additive in the polymer film. At 0.1 V and 10 Hz, the polymer dielectric film with PVC had a dielectric constant of 23.6 with a dielectric loss of 0.04. This film exhibited a 73% increase in dielectric constant compared with the film without additives. The increment in the dielectric constant was attributed to the high polarisability of Cl atoms.Introduction: Recently, polymer-based dielectric films have attracted interest for potential uses in polymer electronics and displays owing to their simple fabrication process, high flexibility and so on [1-3]. However, polymer dielectric films usually have low dielectric constants compared with inorganic dielectric films. To overcome this, conductive and/or ceramic fillers have been incorporated in the polymer film, due to the interfacial polarisation between the fillers and the polymer matrix [2]. Chlorine (Cl), an element in column VII of the periodic table, was also used for this purpose due to its high electronegativity -the polar and polarisable carbon-chlorine (C-Cl) bonds in partial chlorination of reduced graphene oxide platelets can enhance the dielectric constant in the composite film [4]. In addition, Cl atoms and/or Cl-containing functional groups in inorganic materials, such as barium titanate powder, can increase the dielectric constant [5]. The appropriate amount of the Cl-containing polymer additive in a polymer dielectric film would be one of the key strategies to increase the dielectric constant.In this Letter, we present the effect of the Cl-containing polymer additive on dielectric performance in a polymer dielectric film. Cyanoethyl pullulan (CEP) as a high dielectric host material and polyvinyl chloride (PVC) (or polychlorostyrene (PCS)) as an additive polymer were used. The CEP polymer film with a PVC additive had a dielectric constant of 23.6 with a dielectric loss of 0.04 at 10 Hz, whereas that without additives had a dielectric constant of 13.6 with a dielectric loss of 0.03. Adding PVC in the polymer film resulted in a 73% increase in dielectric constant. This increment in the dielectric constant could be attributed to the polarisability of Cl atoms.

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High electroluminescence of the ZnS:Mn nanoparticle/cyanoethyl-resin polymer/single-walled carbon nanotube composite using the tandem structure

Cited by 16 publications

References 28 publications

Enhanced Dielectric Performance in Polymer Composite Films with Carbon Nanotube‐Reduced Graphene Oxide Hybrid Filler

Enhanced Dielectric Performance in Polymer Composite Films with Carbon Nanotube‐Reduced Graphene Oxide Hybrid Filler

Effect of halohydrocarbon solvents on the dielectric performance of a polymer film and its application to inorganic electroluminescent devices

Effect of chlorine‐containing polymer additive on dielectric performance of polymer dielectric films

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