BaSr2I6

BaSr2I6 is a wide-gap insulating halide compound that is theoretically stable and of interest for potential use in high-performance optoelectronic applications.

BaISr
Crystal structure of BaSr2I6
Ground-state structure · Materials Project
Overview

About BaSr2I6

BaSr2I6 is a complex halide material characterized by its wide-gap insulating electronic structure. As a multi-cation iodide, it represents a specialized class of inorganic compounds that are increasingly explored for their potential in radiation detection and scintillation technologies.

Due to its near-hull thermodynamic stability, this material is considered a viable candidate for experimental synthesis. The significant number of reported structural variations suggests a flexible lattice architecture that can be tuned for specific physical properties.

At a glance

Key Properties

Cross-validated computational properties for BaSr2I6, aggregated across 3 databases.

Band Gap

3.28–4.09 eV
Range across DFT structures

Energy Above Hull

0.010 eV/atom
Best (lowest) across sources

Stability

Near hull (likely stable)
2 DFT sources

Structures

33
3 databases, 8 space groups
Uses

Applications

Where BaSr2I6 is used.

Radiation detectionScintillation materialsOptoelectronic research
Reference

Frequently Asked Questions

Common questions about BaSr2I6, answered from cross-validated data.

What is BaSr2I6?

BaSr2I6 is a wide-gap insulating halide compound that is theoretically stable and of interest for potential use in high-performance optoelectronic applications.

More questions
What is BaSr2I6 used for?
BaSr2I6 is used in radiation detection, scintillation materials, and optoelectronic research.
What is the band gap of BaSr2I6?
BaSr2I6 has a DFT-computed band gap of 3.28–4.09 eV across 33 reported structures.
Is BaSr2I6 a metal, semiconductor, or insulator?
With a wide band gap up to 4.09 eV it is an insulator / wide-band-gap material.
Is BaSr2I6 thermodynamically stable?
BaSr2I6 has a lowest energy above hull of 0.010 eV/atom (near hull (likely stable)).
How many polymorphs of BaSr2I6 are known?
33 structures of BaSr2I6 are reported across 3 databases, spanning 8 distinct space groups.
What elements does BaSr2I6 contain?
BaSr2I6 contains Ba, I, and Sr (3 elements).
Where does the data for BaSr2I6 come from?
BaSr2I6 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a unique halide system, BaSr2I6 occupies a distinct niche within the broader landscape of alkaline-earth metal iodides. While it lacks direct structural siblings in this specific dataset, it serves as a representative example of how mixed-cation halide frameworks can achieve the structural stability required for advanced material development.

Data sources & attribution
  • latticegraph — Lattice Graph Materials Intelligence Platform

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