Suppression of superconductivity at the nanoscale in chemical solution derived YBa2Cu3O7−δthin films with defective Y2Ba4Cu8O16intergrowths

Li, Ziliang; Coll, Mariona; Mundet, Bernat; Palau, Anna; Puig, Teresa; Obradors, X.

doi:10.1039/d0na00456a

Cited by 7 publications

(5 citation statements)

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“…These defects have a positive contribution to increase the nanostrain, thus enhancing vortex pinning in a synergetic action with the nanoparticles themselves. 17,75 We conclude, therefore, that the developed IJP approach to YBCO thick films fulfills the strict homogeneity requirements to grow high-quality epitaxial thick films and so we envisage that this technique will be further pursued in the future considering its potential for large-scale preparation of CCs with high critical currents.…”

Section: ■ Results and Discussionmentioning

confidence: 88%

“…The random orientation of the nanoparticles induces a high concentration of YBa 2 Cu 4 O 8 intergrowths and some CuO 2 plane bending at the incoherent nanoparticle interface (Figure e–g). , While Figures e,f display a BZO nanoparticle having an orientation close to {100}BZO//[001]YBCO and {110}BZO//{100}YBCO, Figure g displays a randomly oriented BZO nanoparticle generating YBa 2 Cu 4 O 8 intergrowths at the interface. These defects have a positive contribution to increase the nanostrain, thus enhancing vortex pinning in a synergetic action with the nanoparticles themselves. , …”

Section: Resultsmentioning

confidence: 99%

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High Performance of Superconducting YBa₂Cu₃O₇ Thick Films Prepared by Single-Deposition Inkjet Printing

Villarejo

Pino

Pop

et al. 2021

ACS Appl. Electron. Mater.

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Inkjet printing (IJP) is a very appealing cost-effective deposition technique to achieve large-area solution-derived functional films. For many applications, it is very challenging to increase the film thickness in order to achieve competitive performance, for instance, high critical currents in superconducting films. In this paper, the preparation of superconducting YBa2Cu3O7 thick films (∼1.1 μm) using a single deposition is reported. Specific rules for ink design, deposition protocols, and pyrolysis processes are provided. The most important aspect is to formulate an ink with a solvent having a high boiling point that keeps the whole film wet during deposition to avoid liquid movement due to coffee-ring effects. An additional success has been to modify the ink with a photocurable polyacrylic ester varnish which after polymerization with a UV LED lamp helps keep homogeneous thickness. This varnish also helped avoid the generation of film instabilities (wrinkling or cracking) during pyrolysis. Homogeneous pyrolyzed thick films are transformed into epitaxial thick films with high critical currents. The IJP process is shown to be valid to prepare nanocomposite films using colloidal inks including pre-prepared BaZrO3 nanoparticles. The nanocomposite thick films display enhanced vortex pinning, thus keeping high critical currents under high magnetic fields.

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Section: ■ Results and Discussionmentioning

confidence: 88%

Section: Resultsmentioning

confidence: 99%

High Performance of Superconducting YBa₂Cu₃O₇ Thick Films Prepared by Single-Deposition Inkjet Printing

Villarejo

Pino

Pop

et al. 2021

ACS Appl. Electron. Mater.

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“…with an initial 1:2:3 Y:Ba:Cu ratio the final film was closer to a ratio 1:2:4 without any additional identifiable Cu provision. For that reason, a thorough atomic scale structural and functional investigation was undertaken, using STEM and XMCD in parallel with DFT calculations, which was then complemented by magnetometry measurements [218,233,234].…”

Section: Nanoscale Defects Generation: Structure and Propertiesmentioning

confidence: 99%

Progress in superconducting REBa₂Cu₃O₇ (RE = rare earth) coated conductors derived from fluorinated solutions

Obradors,

Puig,

Ricart

et al. 2024

Supercond. Sci. Technol.

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In this work, we review recent progress achieved in the use of Chemical Solution Deposition (CSD) based on fluorinated metalorganic precursors to grow superconducting REBCO films and CCs. We examine, first of all, the advances in optimizing the steps related to the solutions preparation, deposition and pyrolysis based on novel low-fluorine metalorganic solutions. We show that a new type of multifunctional colloidal solutions including preformed nanoparticles, can be used to introduce artificial pinning centers (APCs). We analyze how to disentangle the complex physico-chemical transformations occurring during the pyrolysis with the purpose of maximizing the film thicknesses. Understanding the nucleation and growth mechanisms is shown to be critical to achieve a fine tuning of the final microstructure, either using the spontaneous segregation or the colloidal solution approaches, and make industrially scalable this process. Advanced nanostructural studies have deeply modified our understanding of the defect structure and its genealogy. It is remarkable the key role played by the high concentration of randomly distributed and oriented BaMO3 (M=Zr, Hf) nanoparticles which enhance the concentration of APCs, such as stacking faults and the associated partial dislocations.Correlating the defect structure with the critical current density Jc(H,T,) allows to reach a tight control of the vortex pinning properties and to devise a general scheme of the vortex pinning landscape in the whole H – T phase diagram. We also refer to the outstanding recent achievements in enhancing the vortex pinning strength by shifting the carrier concentration in REBCO films towards the overdoped state, where the pinning energy is maximum and so, record values of critical current densities are achieved. This confirms the performance competitiveness of nanocomposite CCs prepared through the CSD route. We conclude with a short summary of the progress in scaling the CC manufacturing using fluorinated solutions.

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“…Ziliang Li et al [24] studied the superconducting properties and microstructure of chemical solution deposited (CSD) YBCO films by XRD measurements and magnetic susceptibility. With film thickness decreasing down to 5 nm, the effect of Y 2 Ba 4 Cu 8 O 16 intergrowth in films was revealed.…”

Section: Xrdmentioning

confidence: 99%

A Review on Strain Study of Cuprate Superconductors

Zhang

Zhao

et al. 2022

Nanomaterials

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Cuprate superconductors have attracted extensive attention due to their broad promising application prospects. Among the factors affecting superconductivity, the effect of strain cannot be ignored, which can significantly enhance or degrade superconductivity. In this review, we discuss and summarize the methods of applying strain to cuprate superconductors, strain measurement techniques, and the influence of strain on superconductivity. Among them, we pay special attention to the study of strain in high–temperature superconducting (HTS) films and coating. We expect this review can guide further research in the field of cuprate superconductors.

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Suppression of superconductivity at the nanoscale in chemical solution derived YBa₂Cu₃O_7−δthin films with defective Y₂Ba₄Cu₈O₁₆intergrowths

Abstract: The analysis of the microstructure and superconducting behavior of chemical solution deposited epitaxial YBa2Cu3O7−δ films, with thickness down to 5 nm, has been carried out to disclose the behavior of the most common intergrowth Y2Ba4Cu8O16.

Cited by 7 publications

References 70 publications

High Performance of Superconducting YBa₂Cu₃O₇ Thick Films Prepared by Single-Deposition Inkjet Printing

High Performance of Superconducting YBa₂Cu₃O₇ Thick Films Prepared by Single-Deposition Inkjet Printing

Progress in superconducting REBa₂Cu₃O₇ (RE = rare earth) coated conductors derived from fluorinated solutions

A Review on Strain Study of Cuprate Superconductors

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Suppression of superconductivity at the nanoscale in chemical solution derived YBa2Cu3O7−δthin films with defective Y2Ba4Cu8O16intergrowths

Abstract: The analysis of the microstructure and superconducting behavior of chemical solution deposited epitaxial YBa2Cu3O7−δ films, with thickness down to 5 nm, has been carried out to disclose the behavior of the most common intergrowth Y2Ba4Cu8O16.

Cited by 7 publications

References 70 publications

High Performance of Superconducting YBa2Cu3O7 Thick Films Prepared by Single-Deposition Inkjet Printing

High Performance of Superconducting YBa2Cu3O7 Thick Films Prepared by Single-Deposition Inkjet Printing

Progress in superconducting REBa2Cu3O7 (RE = rare earth) coated conductors derived from fluorinated solutions

A Review on Strain Study of Cuprate Superconductors

Contact Info

Product

Resources

About

Suppression of superconductivity at the nanoscale in chemical solution derived YBa₂Cu₃O_7−δthin films with defective Y₂Ba₄Cu₈O₁₆intergrowths

High Performance of Superconducting YBa₂Cu₃O₇ Thick Films Prepared by Single-Deposition Inkjet Printing

High Performance of Superconducting YBa₂Cu₃O₇ Thick Films Prepared by Single-Deposition Inkjet Printing

Progress in superconducting REBa₂Cu₃O₇ (RE = rare earth) coated conductors derived from fluorinated solutions