A Chemical, High-Temperature Way to AgTe via Quasi-Topotactic Reaction of Stuetzite-type AgTe: Structural and Thermoelectric Properties.

Semiconducting silver tellurides gained reasonable interest in the past years due to its thermoelectric, magneto-caloric, and nonlinear optic properties. Nanostructuring has been frequently used to address quantum-confinement effects of minerals and synthetic compounds in the Ag-Te system. Here, we report on the structural, thermal, and thermoelectric properties of stuetzite-like AgTe (or AgTe) and AgTe.

Synthesis, Characterization, and Device Application of Antimony-Substituted Violet Phosphorus: A Layered Material.

Two-dimensional (2D) nanoflakes have emerged as a class of materials that may impact electronic technologies in the near future. A challenging but rewarding work is to experimentally identify 2D materials and explore their properties. Here, we report the synthesis of a layered material, PSb, with a systematic study on characterizations and device applications.

Inorganic Clathrates: A Polyhedron with 22 Vertices and up to Ninefold Coordinated Phosphorus Atoms.

Attractive phosphorus: Phosphorus atoms coordinated to up to nine neighbors can be found in the host structure of the clathrate Ba M P , which results in a new 22-vertex polyhedron (yellow). The physical properties can be tuned by adjusting the amount of phosphorus incorporated in the host framework of this new cage compound.

Polymorphism in Zintl Phases ACd4Pn3: Modulated Structures of NaCd4Pn3 with Pn = P, As.

NaCd4P3 and NaCd4As3 were synthesized via short-way transport using the corresponding elements and CdI2 as mineralizer. At room temperature, the two β-polymorphs adopt the RbCd4As3 structure type which has been recently reported for alkali metal (A)-d(10) transition metal (T)-pnictides (Pn). The title compounds crystallize rhombohedrally in space group R3̅m at room temperature and show reversible phase transitions to incommensurately modulated α-polymorphs at lower temperatures.