Si2Sn2

Si2Sn2 is a semiconducting silicon-tin compound studied for its potential application in high-capacity battery anode technologies.

Crystal structure of Si2Sn2
Ground-state structure · Materials Project
Overview

About Si2Sn2

Si2Sn2 is a semiconducting binary compound composed of silicon and tin. As a member of the silicon anode material class, it is investigated for its potential to facilitate lithium-ion transport and storage in next-generation energy systems.

This material is characterized by its position above the thermodynamic hull, indicating it is likely metastable. Despite its structural complexity, it remains a subject of interest in materials informatics, with numerous reported structures across multiple databases highlighting its diverse potential configurations.

At a glance

Key Properties

Cross-validated computational properties for Si2Sn2, aggregated across 4 databases.

Band Gap

0.43 eV
Range across DFT structures

Energy Above Hull

0.192 eV/atom
Best (lowest) across sources

Stability

Above hull
3 DFT sources

Structures

35
4 databases, 13 space groups
Uses

Applications

Where Si2Sn2 is used.

Lithium-ion battery anode researchEnergy storage materials development
Reference

Frequently Asked Questions

Common questions about Si2Sn2, answered from cross-validated data.

What is Si2Sn2?

Si2Sn2 is a semiconducting silicon-tin compound studied for its potential application in high-capacity battery anode technologies.

More questions
What is Si2Sn2 used for?
Si2Sn2 is used in lithium-ion battery anode research and energy storage materials development.
What is the band gap of Si2Sn2?
Si2Sn2 has a DFT-computed band gap of 0.43 eV across 35 reported structures.
Is Si2Sn2 a metal, semiconductor, or insulator?
With a band gap up to 0.43 eV it is a semiconductor.
Is Si2Sn2 thermodynamically stable?
Si2Sn2 has a lowest energy above hull of 0.192 eV/atom (above hull).
How many polymorphs of Si2Sn2 are known?
35 structures of Si2Sn2 are reported across 4 databases, spanning 13 distinct space groups.
What elements does Si2Sn2 contain?
Si2Sn2 contains Si and Sn (2 elements).
Where does the data for Si2Sn2 come from?
Si2Sn2 data is cross-referenced from latticegraph.
Comparison

How It Compares

Within the silicon anode materials class.

Unlike the highly stable and widely utilized Si or the robust intermetallic Mg2Si, Si2Sn2 exists in a more precarious thermodynamic state. While materials like MoSi2 and BaSi2 are well-established for their structural integrity and specific electronic properties, Si2Sn2 represents a more experimental frontier within the silicon anode class, requiring careful synthesis to manage its inherent instability.

Explore

Related Compounds

Other Silicon Anode Materials in the database.

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

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