InS

indium monosulfide · indium(II) sulfide

Indium monosulfide is a thermodynamically stable semiconducting compound composed of indium and sulfur.

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

About indium monosulfide

Indium monosulfide is a thermodynamically stable binary compound that occupies a position on the convex hull of the indium-sulfur system. Its nature as a semiconductor makes it an intriguing subject for research into electronic materials that require specific charge transport characteristics.

With a significant number of reported structures across various databases, this material is well-characterized in the scientific literature. Its stability and electronic behavior suggest it is a robust candidate for fundamental studies in solid-state physics and material engineering.

At a glance

Key Properties

Cross-validated computational properties for indium monosulfide, aggregated across 5 databases.

Band Gap

0.44–1.35 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
3 DFT sources

Structures

84
5 databases, 23 space groups
Validation

Cross-Source DFT Agreement

How well independent DFT databases agree on the thermodynamics of InS. Tight agreement means computed properties can be trusted without re-running calculations.

Agreement Score

1.00 / 1.00
Trust tier: high

Hull Spread

0.000 eV
EAH spread across sources

Sources Compared

3
jarvis, materials_project, nomad

Space Group Consensus

All match
Synthesis

Synthesis Routes

Literature-extracted synthesis procedures targeting InS.

Sol Gel
Procedure available · ceder_sol_gel
Sol Gel
Procedure available · ceder_sol_gel
Solid State
Procedure available · ceder_solid_state
Solid State
Procedure available · ceder_solid_state
Solid State
Procedure available · ceder_solid_state
Solid State
Procedure available · ceder_solid_state
Uses

Applications

Where indium monosulfide is used.

semiconductor researchoptoelectronic device developmentthin-film material studies
Reference

Frequently Asked Questions

Common questions about indium monosulfide, answered from cross-validated data.

What is InS?

Indium monosulfide is a thermodynamically stable semiconducting compound composed of indium and sulfur.

More questions
What is InS used for?
indium monosulfide (InS) is used in semiconductor research, optoelectronic device development, and thin-film material studies.
What is the band gap of InS?
indium monosulfide (InS) has a DFT-computed band gap of 0.44–1.35 eV across 84 reported structures.
Is InS a metal, semiconductor, or insulator?
With a band gap up to 1.35 eV it is a semiconductor.
Is InS thermodynamically stable?
Yes — indium monosulfide (InS) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of InS are known?
84 structures of InS are reported across 5 databases, spanning 23 distinct space groups.
How is InS synthesized?
Literature-reported routes for InS include sol gel, solid state (10 procedures documented).
What elements does InS contain?
indium monosulfide (InS) contains In and S (2 elements).
Where does the data for InS come from?
InS data is cross-referenced from latticegraph.
Comparison

How It Compares

As a stable binary semiconductor, indium monosulfide serves as a foundational reference point for understanding the behavior of indium-based chalcogenides. It represents a key phase in the indium-sulfur landscape, providing a baseline for comparing the structural and electronic evolution of more complex indium-sulfur compounds.

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

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