9 papers
Tailoring Dielectric Relaxation and Charge Transport in Amorphous Ge-Te-Se Phase-Change Materials through Yttrium Incorporation
Surbhi Agarwal, Jiří Vacík, D. K. Dwivedi
The Te(1-x)(GeSe0.5)Yx (x = 0.05, 0.10, 0.15) alloys were prepared by a melt-quenching method and characterized using dielectric spectroscopy. The dielectric parameters and electri…
Synthesis and modification of thin NaSICON solid electrolytes using ion beams
Giovanni Ceccio, Jiri Vacik, Ivan Mastronardo +3
Solid electrolytes (SEs) for sodium-based superionic conductors (NaSICON) were first introduced in 1976 and quickly recognized for their excellent ionic conductivity. While conside…
Direct observation of reversible ionic polarization at a buried solid-state battery interface
Giovanni Ceccio, Romana Miksova, Jiri Vacik +5
Electric fields control ionic distributions at solid-solid interfaces. However, whether buried interfaces possess an intrinsic ionic reversibility has remained experimentally unres…
Multi-Method Li Plating Characterization of a Commercial 26 Ah Li-Ion Pouch-Cell
Christiane Rahe, Heinrich Ditler, Thorsten Tegetmeyer-Kleine +21
Lithium (Li) plating on graphite is a significant degradation mechanism in Li-ion batteries. While numerous experimental techniques have been used to study Li plating in laboratory…
Morphological Evolution of Nickel-Fullerene Thin Film Mixtures
Giovanni Ceccio, Kazumasa Takahashi, Romana Miksova +5
Hybrid systems consisting of metal-fullerene composites exhibit intriguing properties but often suffer from thermal instability. With proper control, such instability can be harnes…
Hybrid films of Co - C60 preparation and changes induced by external stimuli
Giovanni Ceccio, Jiri VAcik, Yuto Kondo +9
In this work, we report on the study on organic-metal hybrid systems, in particular Co-C60 fullerene thin films. This study mainly focused on the investigation of the morphological…
NASICON solid-electrolyte modification and analysis using ion and neutron beams
Giovanni Ceccio, Jiri Vacik, Mykhailo Drozdenko +7
Solid electrolytes (SEs) for sodium-based superionic conductors (NaSICON) are widely recognized for their excellent ionic conductivity and application in sodium based energy storag…
Effects of pulsed and continuous light and heavy ion irradiation on the morphology and electrical properties of Ag+C60 and Au+C60 composite thin films
Giovanni Ceccio, Kazumasa Takahashi, Yuto Kondo +5
Metal - organic nanocomposite thin films represent a versatile class of materials whose properties can be effectively tuned through external stimuli. In this study, Ag+C60 and Au+C…
Measuring the buried interphase between solid electrolytes and lithium metal using neutrons
Andrew S. Westover, Katie L. Browning, Antonino Cannavo +6
Interfaces are the key to next generation high energy batteries including solid state Li metal batteries. In solid state batteries, the buried nature of solid solid electrolyte ele…