Martin Silhavik

Institute of Physics ASCR | FZU · Department of Thin Films and Nanostructures

The ability to protect materials from fire is vital to many industrial applications and life safety systems. Although various chemical treatments and protective coatings have proven effective as flame retardants, they provide only temporary prevention, as they do not change the inherent flammability of a given material. In this study, we demonstrat...

Elasticity in materials is a phenomenon that provides a basis for widespread practical applications in engineering, medicine, and electronics. Most of the conventional materials can withstand only small deformations within the elastic limit, typically below 5% of their original size. Here, we report a graphene aerogel made of covalently cross-linke...

A movable electrical contact between two materials is one of the most fundamental, simple, and common components in electronics that is used for binary control of a conducting path in an electrical circuit. Here, variable contact resistance between a highly elastic graphene aerogel and a rigid metal electrode is used for the analysis of non-binary...

Aqueous Zn-based batteries are promising candidates for grid energy storage due to their low cost, intrinsic safety, and environmental friendliness. Nevertheless, they suffer from limited energy density due to the utilization of low-voltage cathodes and electrolytes. Graphite could be a viable high-voltage cathode material owing to its high redox p...

Anion intercalated graphite has achieved tremendous attention for the application as cathode materials in dual-ion batteries due to their high working potentials, reversibility, and low cost. However, the process of anion intercalation into graphite requires high oxidative stability of the electrolytes and high reaction potentials above 1.4 V vs. A...

The present invention relates to a non-flow electrochemical energy-storing device capable of periodical charging and re-charging. In a first aspect of the present invention, a system of a non-flow electrochemical energy-storing device comprises an anode, a cathode, and an electrolyte, wherein the electrolyte is an aqueous solution of metal perchlor...

Electrochemical energy storage systems (EESS) with high energy density, safety, low cost, and low carbon footprint have become indispensable in the modern era of ubiquitous electronics, electric vehicles, and grid storage. Current EESS lack of these characteristics due to the utilization of critical materials which are precious, flammable and diffi...

We report the results of a microscopic study of the nucleation and early growth stages of metal-catalyzed silicon nanowires in plasma-enhanced chemical vapor deposition. The nucleation of silicon nanowires is investigated as a function of different deposition conditions and metal catalysts (Sn, In and Au) using correlation of atomic force microscop...

Foreign atoms incorporated into the crystal structure of a semiconductor have profound effects on the electronic structure and charge transport in the material, particularly in nanoscale systems. Here, we demonstrate that catalyst-induced doping of silicon nanowires (SiNWs) can be used as an effective way for controlling dopant density and electric...