Te-based chalcogenide materials for selector applications

Mass transport in chalcogenide electrolyte films – materials and applications

Certain metals can be added to thin films of chalcogenide glasses by photodissolution to create materials with unique morphology and properties. When Ag is combined in this fashion with Ge–Se or Ge–S glasses, the resulting ternary contains a dispersed nanocrystalline Ag2S(e) phase that has large quantities of mobile metal ions. The presence of these ions allows the ternaries to act as solid ele...

Computational Predictions for Single Chain Chalcogenide-Based One-Dimensional Materials

Exfoliation of multilayered materials has led to an abundance of new two-dimensional (2D) materials and to their fabrication by other means. These materials have shown exceptional promise for many applications. In a similar fashion, we can envision starting with crystalline polymeric (multichain) materials and exfoliate single-chain, one-dimensional (1D) materials that may also prove useful. We...

Chalcogenide Glass Materials for Integrated Infrared Photonics

Chalcogenide glasses (ChGs) are amorphous compounds containing the chalcogen elements (S, Se, Te) and exhibit wide infrared transparency windows. They are easy to synthesize in bulk and thin film forms and their compositional flexibility allows tuning of optical properties such as refractive index making them ideal for infrared photonics. We have studied the material attenuation in ChGs that ar...

Te-based chalcogenide films with high thermal stability for phase change memory

Atomistic Simulations of Flash Memory Materials Based on Chalcogenide Glasses

In the last decade, the market for non-volatile computer storage has experienced rapid growth. However, as the device size scales down, currently used NOR and NAND technology is facing limitations from tunnel oxide and electrostatic interactions between cells (Lacaita & Wouters, 2008). To solve the scaling problems, in the last fifteen years, a number of alternative Flash memory technologies ha...