Unravelling the amorphous structure and crystallization mechanism of GeTe phase change memory materials

S Wintersteller, O Yarema, D Kumaar… - Nature …, 2024 - nature.com
The reversible phase transitions in phase-change memory devices can switch on the order
of nanoseconds, suggesting a close structural resemblance between the amorphous and …

[HTML][HTML] Atmosphere engineering of metal-free Te/C3N4 pn heterojunction for nearly 100% photocatalytic converting CO2 to CO

H Liao, K Huang, W Hou, H Guo, C Lian… - Advanced Powder …, 2024 - Elsevier
Carbon nitride (CN)-based heterojunction photocatalysts hold promise for efficient carbon
dioxide (CO 2) reduction. However, suboptimal production yields and limited selectivity in …

On the application potential of chemically tailored metal oxide and higher chalcogenide nanoparticles for nanoscale resistive switching devices

A Frommelius, T Ohlerth, M Noyong… - physica status solidi …, 2023 - Wiley Online Library
Resistive switching (RS) for nonvolatile data storage is a highly relevant field of research. Up
to now, RS devices are fabricated via semiconductor processing technologies. This poses …

Phase-change memory from molecular tellurides

FM Schenk, T Zellweger, D Kumaar, D Bošković… - ACS …, 2023 - ACS Publications
Phase-change memory (PCM) is an emerging memory technology based on the resistance
contrast between the crystalline and amorphous states of a material. Further development …

Structural Ordering in Ultrasmall Multicomponent Chalcogenides: The Case of Quaternary Cu‐Zn‐In‐Se Nanocrystals

M Yarema, N Yazdani, O Yarema… - Advanced …, 2024 - Wiley Online Library
The compositional tunability of non‐isovalent multicomponent chalcogenide thin films and
the extent of atomic ordering of their crystal structure is key to the performance of many …

Phase-Controlled Synthesis and Phase-Change Properties of Colloidal Cu–Ge–Te Nanoparticles

D Kumaar, M Can, H Weigand, O Yarema… - Chemistry of …, 2024 - ACS Publications
Phase-change memory (PCM) technology has recently attracted a vivid interest for
neuromorphic applications, in-memory computing, and photonic integration due to the …

FeAu mixing for high-temperature control of light scattering at the nanometer scale

AV Nominé, EV Gunina, SV Bachinin, AI Solomonov… - Nanoscale, 2024 - pubs.rsc.org
Control of the optical properties of a nanoparticle (NP) through its structural changes
underlies optical data processing, dynamic coloring, and smart sensing at the nanometer …

Concepts behind the Redox Photocatalysis with Quantum Dots

M Navarro, J Costa, FLN Sousa - ChemCatChem, 2024 - Wiley Online Library
In this conceptual review, we present the optical and electronic characteristics of quantum
dots for the designing of organic synthesis experiments through the photocatalysis. We …

Inkjet‐Printed Phase Change Memory Devices

H He, D Kumaar, K Portner, T Zellweger… - Advanced Electronic …, 2024 - Wiley Online Library
Phase change memory (PCM) is among the most promising candidates for the next
generation of storage‐class and main memory systems in the computing era beyond …

[HTML][HTML] Ultrafast response of Ge2Sb2Te5 nanoparticles: The benefits of low energy amorphization switching with the same read/write speed of bulk memories

A Caretta, B Casarin, B Chen, BJ Kooi, M Malvestuto - APL Materials, 2023 - pubs.aip.org
We investigate the ultrafast response of crystalline Ge 2 Sb 2 Te 5 nanoparticles (NPs)
below the phase transformation threshold fluence. The observed rapid change of the optical …