Simple and scalable growth of AgCl nanorods by plasma-assisted strain relaxation on flexible polymer substrates

Park, Jae Yong; Lee, Illhwan; Ham, Juyoung; Gim, Seungo; Lee, Jong‐Lam

doi:10.1038/ncomms15650

Cited by 26 publications

(23 citation statements)

References 54 publications

(59 reference statements)

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“…The flat GaN exhibited T total = 68%. When d NR < 120 nm, T total was calculated to be higher than 77%, which is higher transmittance compared to planar GaN surface because nanorods provide smooth refractive index transition from GaN to air 19,20 . Meanwhile, the T total decrease when d NR > 120 nm.…”

Section: Resultsmentioning

confidence: 96%

Subwavelength-scale nanorods implemented hexagonal pyramids structure as efficient light-extraction in Light-emitting diodes

Park

Kim

Yoo

et al. 2020

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Subwavelength-scale nanorods were implemented on the hexagonal pyramid of photochemically etched light-emitting diodes (LEDs) to improve light extraction efficiency (LEE). Sequential processes of Ag deposition and inductively coupled plasma etching successfully produce nanorods on both locally unetched flat surface and sidewall of hexagonal pyramids. The subwavelength-scale structures on flat surface offer gradually changed refractive index, and the structures on side wall of hexagonal pyramid reduce backward reflection, thereby enhancing further enhancement of the light extraction efficiency. Consequently, the nanorods implemented LED shows a remarkable enhancement in the light output power by 14% compared with that of the photochemically etched LEDs which is known to exhibit the highest light output power. Theoretical calculations using a rigorous coupled wave analysis method reveal that the subwavelength-scale nanorods are very effective in the elimination of TIR as well as backward reflections, thereby further enhancing LEE of the LEDs.

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Section: Resultsmentioning

confidence: 96%

Subwavelength-scale nanorods implemented hexagonal pyramids structure as efficient light-extraction in Light-emitting diodes

Park

Kim

Yoo

et al. 2020

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“…In some specific cases (such as for AgCl_KCl_NØ and AgCl_HCl_SDS), additional overlapping diffraction peaks appeared at 2θ ≈ 27.6 • , 32.5 • , and 45.9 • (which mainly overlapped with the reflections of AgCl mentioned above). The explanation of these signals may be found in the synthesis procedure/crystallization conditions: Other researchers also observed this phenomenon, but no further discussion of the signals' origin was found [33][34][35]. Besides the reflections of AgCl mentioned above, other weak reflections (2θ ≈ 24.9 • , 29.0 • , and 41.4 • , 38.2 • ; Supplementary Table S1, Figure 1b,c) were observed, which could be attributed to the presence of AgClO 4 , AgClO 3 , and Ag, although their quantity was very low.…”

Section: Characterization Of Agcl Microcrystalsmentioning

confidence: 98%

Solvothermal Crystallization of Ag/AgxO-AgCl Composites: Effect of Different Chloride Sources/Shape-Tailoring Agents

et al. 2021

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In the present work, AgCl microcrystals were obtained by solvothermal crystallization to investigate the effect of H+, Na+, K+, and different shape-tailoring agents (non-ionic: polyvinylpyrrolidone vs. anionic: sodium dodecyl sulfate) on the textural and photocatalytic properties of the samples. The crystallization process resulted in secondary products, such as AgxO or Ag, AgClO3, AgClO4, which were further transformed during the photocatalytic tests. The most efficient photocatalyst (assessed for methyl orange degradation) was synthesized using HCl, as a chloride source and polyvinylpyrrolidone, as a shape-tailoring agent. Therefore, the ability of polyvinylpyrrolidone to enhance the photocatalytic activity was also investigated, and it was found that the addition of 0.6 g polyvinylpyrrolidone resulted in the most efficient photocatalyst. Moreover, AgxO, being a charge separator, could play a critical role in the photocatalytic process, while reversibly transforming to Ag back and forth.

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“…Copyright 2015, Wiley‐VCH. Image for “nanorod” in (b): Reproduced under the terms of the CC‐BY Creative Commons Attribution 4.0 International license ( http://creativecommons.org/licenses/by/4.0/) . Copyright 2017 The Authors, published by Springer Nature.…”

Section: Progresses Of Highly Efficient Flexible Displaysmentioning

confidence: 99%

Emerging Self‐Emissive Technologies for Flexible Displays

2019

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in the connection between software and hardware and function as the direct information transfer windows, have improved substantially since their invention. [4] Actually, as one representative technology, flexible active-matrix organic light-emitting diodes (flex-AMOLEDs) have been made a huge success in commercialization due to the popularization of high-resolution TVs, smartphones, and solid state illuminations. As shown by IHS Markit, the shipments of flex-AMOLED displays are expected to surge to as many as 335.7 million units by 2020 as the demand for such panels continues a strong growth, which accounts for as high as 52.0% of total AMOLED panel shipments and this value reached 38.9% in 2018. [5] The promising prospect faced by flexible displays in the market serves as a testament to their great potential in the future.From a technical perspective, for ideal flexible displays, a number of parameters ought to be satisfied at the same time, including self-emissive characters, excellent mechanical flexibility, low powerconsumption, long-term stability, compatibility with solution processing as well as low cost for mass production, as shown in Figure 1. At present, depending on the emitting-active materials, which define the emission qualities and characteristics of the devices, the self-emissive flexible displays can be categorized into flexible organic light-emitting diodes (flex-OLEDs), flexible quantum dot light-emitting diodes (flex-QLEDs) and flexible perovskite light-emitting diodes (flex-PeLEDs). Derived from the loose van der Waals bonds between organic molecules, excellent mechanical flexibilities have been regarded as one of the intrinsic properties required for organic materials. Thus, in 1992, the first full flexible self-emissive device was created by fabricating a polymer OLED on a poly(ethylene terephthalate) (PET) substrate, which opened up a brand-new era for future displays. [6] From that point on, thanks to the emergence of the phosphorescent emitters and the recently reported thermally activated delayed fluorescence (TADF) emitters as well as the fast-paced advancement of device structure design and manufacturing techniques, both the theoretical and experimental maximum efficiencies of flex-OLEDs have improved considerably, which finally contributes to the success in commercialization of this technology. [7,8] Regarding flex-QLEDs, despite their superiority in high efficiency, low cost, solution-process compatibility and high color-purity, the progress of such devices is significantly slower as compared Featuring a combination of ultrathin and lightweight properties, excellent mechanical flexibility, low power-consumption, and widely tunable saturated emission, flexible displays have opened up a new possibility for optoelectronics. The demands for flexible displays are growing on a continual basis due not only to their successful commercialization but, more importantly, their endless possibilities for wearable integrated systems. Up to now, self-emissive technologies for displays, flexible ac...

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Simple and scalable growth of AgCl nanorods by plasma-assisted strain relaxation on flexible polymer substrates

Cited by 26 publications

References 54 publications

Subwavelength-scale nanorods implemented hexagonal pyramids structure as efficient light-extraction in Light-emitting diodes

Subwavelength-scale nanorods implemented hexagonal pyramids structure as efficient light-extraction in Light-emitting diodes

Solvothermal Crystallization of Ag/AgxO-AgCl Composites: Effect of Different Chloride Sources/Shape-Tailoring Agents

Emerging Self‐Emissive Technologies for Flexible Displays

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