SiTaTc2

SiTaTc2 is a semiconducting ternary compound containing silicon, tantalum, and technetium that is currently identified as a metastable phase.

SiTaTc
Crystal structure of SiTaTc2
Ground-state structure · Materials Project
Overview

About SiTaTc2

SiTaTc2 is a complex ternary compound composed of silicon, tantalum, and technetium. As a semiconducting material, it represents an intriguing intersection of transition metal chemistry and semiconductor physics, offering a unique electronic environment defined by its specific elemental constituents.

While the compound has been documented across multiple structural databases, current thermodynamic analysis suggests it resides above the stability hull. This indicates that the material may be metastable or difficult to synthesize under standard conditions, marking it as a subject of interest for advanced computational materials discovery.

At a glance

Key Properties

Cross-validated computational properties for SiTaTc2, aggregated across 3 databases.

Band Gap

0.15 eV
Range across DFT structures

Energy Above Hull

4.101 eV/atom
Best (lowest) across sources

Stability

Above hull
2 DFT sources

Structures

5
3 databases, 1 space group
Reference

Frequently Asked Questions

Common questions about SiTaTc2, answered from cross-validated data.

What is SiTaTc2?

SiTaTc2 is a semiconducting ternary compound containing silicon, tantalum, and technetium that is currently identified as a metastable phase.

More questions
What is the band gap of SiTaTc2?
SiTaTc2 has a DFT-computed band gap of 0.15 eV across 5 reported structures.
Is SiTaTc2 a metal, semiconductor, or insulator?
With a band gap up to 0.15 eV it is a semiconductor.
Is SiTaTc2 thermodynamically stable?
SiTaTc2 has a lowest energy above hull of 4.101 eV/atom (above hull).
How many polymorphs of SiTaTc2 are known?
5 structures of SiTaTc2 are reported across 3 databases, spanning 1 distinct space group.
What elements does SiTaTc2 contain?
SiTaTc2 contains Si, Ta, and Tc (3 elements).
Where does the data for SiTaTc2 come from?
SiTaTc2 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a unique ternary phase, SiTaTc2 occupies a specialized niche within materials science. Unlike more common binary semiconductors, its inclusion of technetium—a rare, radioactive transition metal—distinguishes its chemical behavior and structural complexity from conventional electronic materials.

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

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