Flexible organic light-emitting diodes on a polyestersulfone (PES) substrate using Al-doped ZnO anode grown by dual-plasma-enhanced metalorganic deposition system

Lei, Po-Hsun; Hsu, Ching-Tien; Fan, Yu-Siang

doi:10.1016/j.orgel.2012.10.030

Cited by 41 publications

(11 citation statements)

References 38 publications

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“…Traditional materials such as ultrathin glass or metal foils present an obvious weakness of brittleness or opacity in practical applications . Plastic films such as poly(ethylene terephthalate), polycarbonate, poly(ethylene‐2,6‐naphthalate) and polyester sulfone are expected to be alternative substrates owing to their excellent optical transmittance and flexibility. However, for most of these plastic films, their glass transition temperatures are rather low, generally in the range 80–150 °C.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of highly transparent and heat‐resistant polyimides containing bulky pendant moieties

Zheng

et al. 2019

Polymer International

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A new diamine with bulky pendant biphenyl and ortho-position dimethyl structures, 4,4 ′ -((1,1 ′ -biphenyl)-4-ylmethylene)bis(2,6dimethylaniline), was synthesized via a one-pot reaction of 4-biphenyl carboxaldehyde and 2,6-dimethylaniline. The diamine was employed to polymerize with several dianhydrides via one-step condensation under high-temperature conditions. The light yellow or colorless polyimide (PI) films obtained were found to have cut-off wavelengths in the range 286-358 nm and transmittance over 80% in the visible region (400-780 nm). Meanwhile, these PIs possessed excellent solubility in common organic solvents, even in low-boiling-point solvents such as chloroform (CHCl 3 ), dichloromethane (CH 2 Cl 2 ) and tetrahydrofuran. The glass transition temperatures (T g ) of the PIs were determined to exceed 343 ∘ C, even to 456 ∘ C. All PI films were flexible with a tensile strength of 78-119 MPa, a Young's modulus of 2.0-2.5 GPa and elongation at break of 4.0%-8.2%. Therefore, these colorless PIs can be used as candidate materials for flexible display substrates.

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Section: Introductionmentioning

confidence: 99%

Synthesis of highly transparent and heat‐resistant polyimides containing bulky pendant moieties

Zheng

et al. 2019

Polymer International

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“…Nowadays, several alternative transparent electrodes have been reported, such as carbon nanotubes [5,6], grapheme [7,8], doped ZnO conducting films [9,10], conducting polymes [11,12], metal materials [13,14], etc. Currently, Ag nanomaterial is regarded as one of the most appealing transparent electrodes due to its excellent conductivity.…”

Section: Introductionmentioning

confidence: 99%

High Stable, Transparent and Conductive ZnO/Ag/ZnO Nanofilm Electrodes on Rigid/Flexible Substrates

Zhang¹,

Zhao²,

Jia³

et al. 2016

Energies

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Here, highly transparent, conductive, and stable ZnO/Ag/ZnO electrodes on transparent rigid glass and flexible substrates were prepared by facile, room-temperature magnetron sputtering, in which the continuous Ag layers were obtained by means of oxidization-induced effect under an Ar atmosphere with tiny amounts of O 2 . The results showed an appropriate amount of O 2 was beneficial to form continuous Ag films because of the adsorption of oxygen between the ZnO and Ag layers. When the concentration of O 2 in the Ar atmosphere was 2.0%-3.0%, ZnO (40 nm)/Ag (10 nm)/ZnO (40 nm) films on rigid glass showed visible-range transmittance of 94.8% and sheet resistance of 8.58 Ω¨sq´1, while the corresponding data on flexible PET substrates were 95.9% and 8.11 Ω¨sq´1, respectively. In addition, the outstanding electrodes remained stable for more than six months under air conditioned conditions. The electrodes are fully functional as universal rigid/flexible electrodes for high-performance electronic applications.

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“…The chamber pressure and deposition temperature maintain 2.25 × 10 −4 Pa and 245 • C during the deposition process. To form a stable and uniform plasma in the chamber during GZO thin film deposition, the optimal chamber pressure was 2.25 × 10 -4 Pa in our previous study [40]. Additionally, to obtain an optimal deposition temperature of MIPEMOCVD-grown GZO, the FWHM of (002) peak of XRD spectra, resistivity, and transmittance at 405 nm for MIPEMOCVD-grown GZO thin films grown at different deposition temperatures were shown in Table 2.…”

Section: Methodsmentioning

confidence: 99%

Using Modified-Intake Plasma-Enhanced Metal–Organic Chemical Vapor Deposition System to Grow Gallium Doped Zinc Oxide

et al. 2021

Self Cite

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We have used a modified-intake plasma-enhanced metal–organic chemical vapor deposition (MIPEMOCVD) system to fabricate gallium-doped zinc oxide (GZO) thin films with varied Ga content. The MIPEMOCVD system contains a modified intake system of a mixed tank and a spraying terminal to deliver the metal–organic (MO) precursors and a radio-frequency (RF) system parallel to the substrate normal, which can achieve a uniform distribution of organic precursors in the reaction chamber and reduce the bombardment damage. We examined the substitute and interstitial mechanisms of Ga atoms in zinc oxide (ZnO) matrix in MIPEMOCVD-grown GZO thin films through crystalline analyses and Hall measurements. The optimal Ga content of MIPEMOCVD-grown GZO thin film is 3.01 at%, which shows the highest conductivity and transmittance. Finally, the optimal MIPEMOCVD-grown GZO thin film was applied to n-ZnO/p-GaN LED as a window layer. As compared with the indium–tin–oxide (ITO) window layer, the n-ZnO/p-GaN LED with the MIPEMOCVD-grown GZO window layer of the rougher surface and higher transmittance at near UV range exhibits an enhanced light output power owing to the improved light extraction efficiency (LEE).

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Flexible organic light-emitting diodes on a polyestersulfone (PES) substrate using Al-doped ZnO anode grown by dual-plasma-enhanced metalorganic deposition system

Cited by 41 publications

References 38 publications

Synthesis of highly transparent and heat‐resistant polyimides containing bulky pendant moieties

Synthesis of highly transparent and heat‐resistant polyimides containing bulky pendant moieties

High Stable, Transparent and Conductive ZnO/Ag/ZnO Nanofilm Electrodes on Rigid/Flexible Substrates

Using Modified-Intake Plasma-Enhanced Metal–Organic Chemical Vapor Deposition System to Grow Gallium Doped Zinc Oxide

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