April 22 - 26, 2024
Seattle, Washington
May 7 - 9, 2024 (Virtual)

Event Supporters

2024 MRS Spring Meeting
EN11.08.04

Synthesis of Complex Pnictide Semiconductors

When and Where

Apr 25, 2024
5:00pm - 7:00pm
Flex Hall C, Level 2, Summit

Presenter(s)

Co-Author(s)

Kirill Kovnir1

Iowa State University1

Abstract

Kirill Kovnir1

Iowa State University1
Synthesis of complex inorganic materials is often a bottleneck of the materials by design concept. For complex pnictides, thermodynamic and kinetic limitations of conventional synthetic approaches areas are complicated with phase segregation of volatile components, such as P and As, together with extreme reactivity of alkali and alkaline-earth metals towards container materials. Such limitations often resulted in inability to synthesize predicted materials in ternary and quaternary systems with drastically different reactivities of the constituent elements. Several strategies to advance synthesis and produce challenging phases will be discussed, such as averaging precursor reactivity by atomic mixing of refractory components; and prebuilding chemical bonds in the precursor. In-situ studies are crucial for the development of effective synthesis, especially when backed-up with ex-situ synthetic explorations and DSC results.

Keywords

As | chemical reaction | P

Symposium Organizers

Andrea Crovetto, Technical University of Denmark
Annie Greenaway, National Renewable Energy Laboratory
Xiaojing Hao, Univ of New South Wales
Vladan Stevanovic, Colorado School of Mines

Session Chairs

Andrea Crovetto
Xiaojing Hao

In this Session