8 Dokumente gefunden

Inducing Hard Carbon‐like Sodium Storage Behavior in Graphitizable Carbon via Post‐Synthetic Introduction of Closed Porosity

Hard carbon is commonly used as negative electrode in sodium‐ion‐batteries (SIBs). Another type of disordered carbon, soft carbon (SC, also known as graphitizable carbon), is considered as unsuitable for SIB applications, due to sodium storage at higher potentials and with lower capacities. However,…
Weinheim: Wiley-VCH, 2025-11-05

Polarity dependent predictable and random resistive switching in forming-free unipolar memristors

Polycrystalline, hexagonal HoMnO3 thin films sandwiched between an un-patterned Pt/Ti bottom electrode and a circularly patterned Al top electrode reveal forming-free, polarity dependent predictable and random, unipolar resistive switching with stable retention, and a resistance ratio between high resistance…
New York, NY: AIP Publishing, 2025-01-13

Deposition of CdSe Nanocrystals in Highly Porous SiO 2 Matrices : In Situ Growth vs. Infiltration Methods

aus: Materials
Embedding quantum dots into porous matrices is a very beneficial approach for generating hybrid nanostructures with unique properties. In this contribution we explore strategies to dope nanoporous SiO 2 thin films made by atomic layer deposition and selective wet chemical etching with precise control…
Basel: MDPI, 2024-09-05

Exploring the Reconfigurable Memory Effect in Electroforming-Free YMnO 3 -Based Resistive Switches : Towards a Tunable Frequency…

aus: Materials
Memristors, since their inception, have demonstrated remarkable characteristics, notably the exceptional reconfigurability of their memory. This study delves into electroforming-free YMnO 3 (YMO)-based resistive switches, emphasizing the reconfigurable memory effect in multiferroic YMO thin films with…
Basel: MDPI, 2024-06-05

Dispersion, ionic bonding and vibrational shifts in phospho-aluminosilicate glasses †

Understanding the relationships between structure and properties of aluminosilicate glasses is of interest in magmatic studies as well as for glass applications as mechanical or optical components. Glass properties may be tailored by the incorporation of additional elements, and here we studied the effect…
Cambridge: The Royal Society of Chemistry, 2024-04-17

Genome Mining in Glass Chemistry Using Linear Component Analysis of Ion Conductivity Data

Abstract Understanding the multivariate origin of physical properties is particularly complex for polyionic glasses. As a concept, the term genome has been used to describe the entirety of structure‐property relations in solid materials, based on functional genes acting as descriptors for a particular…
Weinheim: Wiley-VCH, 2023-07-27

Targeted Suppression of Peptide Degradation in Ag‐Based Surface‐Enhanced Raman Spectra by Depletion of Hot Carriers

Sample degradation, in particular of biomolecules, frequently occurs in surface‐enhanced Raman spectroscopy (SERS) utilizing supported silver SERS substrates. Currently, thermal and/or photocatalytic effects are considered to cause sample degradation. This paper establishes the efficient inhibition of…
Weinheim: Wiley-VCH, 2022-12-28

ZnO nanoflowers-based photoanodes : aqueous chemical synthesis, microstructure and optical properties

We have developed an efficient, low temperature, synthetic route for ZnO nanoflowers (NFs) as photoanode material. This alternative route yields small flowerlike nanostructures, built from densely self-assembled tip-ended rod structures. The obtained ZnO NFs possess a large bandgap of 3.27 - 3.39 eV,…
Berlin: de Gruyter, 2016-01-01