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

Autor: Xavier Obradors, Susagna Ricart, Teresa Puig Molina, Xavier Granados, Bernat Mundet, Ferran Valles, Pere Roura, Natalia Chamorro, Bohores Villarejo, Jordi Farjas, Flavio Pino, Ramón Yáñez, Cornelia Pop, Anna Palau
Přispěvatelé: European Commission, Ministerio de Economía y Competitividad (España), European Cooperation in Science and Technology, Generalitat de Catalunya, Ministerio de Economía y Competitividad (Espanya)
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: © Acs Applied Electronic Materials, 2021, vol. 3, núm. 9, p. 3948-3961
Articles publicats (D-F)
Villarejo, Bohores Pino, Flavio Pop, Cornelia Ricart, Susagna Vallés, Ferran Mundet, Bernat Palau, Anna Roura Grabulosa, Pere Farjas Silva, Jordi Chamorro, Natalia Yáñez López, Ramón Granados, Xavier Puig Molina, Teresa Obradors, Xavier 2021 High Performance of Superconducting YBa2Cu3O7 Thick Films Prepared by Single-Deposition Inkjet Printing Acs Applied Electronic Materials 3 9 3948 3961
DUGiDocs – Universitat de Girona
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Digital.CSIC. Repositorio Institucional del CSIC
Popis: 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.
The authors acknowledge the EUROTAPES project (EU-FP7 NMP-LA-2012-280432), COACHSUPENERGY (MAT2014- 51778-C2-1-R and MAT2014-51778-C2-2-R), SUMATE (RTI2018-095853-BC21 and RTI2018-095853-B-C22) cofinanced by the European Regional Development Fund and SUPERINKS (RTC-2015-3840-S) from MINECO (cofinanced by the European Regional Development Fund), 2017-SGR 753 from Generalitat de Catalunya, and COST Action NANOCOHYBRI (CA16218). ICMAB authors acknowledge the Center of Excellence awards Severo Ochoa SEV2015-0496 and CEX2019-000917-S. The authors acknowledge the Scientific Services at ICMAB, ICN2 Electron Microscopy Division, and LMA-INA from Aragon. They also acknowledge KAO Chimigraf for providing varnishes and Bruker HTS for providing metallic substrates.
Databáze: OpenAIRE