Natalia Chamorro will defend her PhD Thesis on Thursday, 14 Jan 2021 at 11 am

Hybrid approach to obtain high-quality BaMO_₃ perovskite nanocrystals for YBa_₂Cu_₃O_7−δ superconducting nanocomposite

by Natalia Chamorro, Superconducting Materials and Large Scale Nanostructures (SUMAN) group, ICMAB, and Chemistry Department, UAB

Date: Thursday, 14 January 2021
Time: 11  am
Venue: Online session from the UAB Sala de Graus I, by Teams. Click here to join the Defense. 

Abstract: In this work, we present a general hybrid solvothermal methodology to synthesise perovskite BaMO₃ nanocrystals with tunable sizes and long-time stability. In contrast with commonly reported methodologies, the combination of aqueous sol-gel and solvothermal treatments not only allowed the successfully production of these particles but also a high tunable control of their size and homogeneity. By using this approximation, we evidence the role of water in the hydrolytic step as the key parameter to tune the size of the final nanocrystals.

In addition we also demonstration the nanocrystals effectiveness to enhance the superconducting properties once the nanocrystals are mixed into YBa₂Cu₃O₇ matrix. Given the novelty and potential relevance of our hybrid method in a deep range of nanoscaled systems.

Supervisors:

• Ramón Yáñez, UAB
• Susagna Ricart, SUMAN group, ICMAB

PhD Committee:

• President: Eduardo Solano, ALBA Synchrotron, Spain
• Secretary: Roser Pleixats, UAB, Spain
• Vocal: Amalia Mesaros, Universitatea Tehnica Cluj-Napoca, Romania

University: Universitat Autònoma de Barcelona (UAB)
PhD Programme: Materials Science