In2S3

indium(III) sulfide · indium sesquisulfide

Indium(III) sulfide is a stable semiconducting compound widely utilized in the development of high-efficiency thin-film solar cells and optoelectronic components.

InS
Crystal structure of In2S3
Ground-state structure · Materials Project
Overview

About indium(III) sulfide

Indium(III) sulfide is a thermodynamically stable compound that functions as a semiconductor. Its structural versatility is evidenced by the extensive number of reported phases across various databases, making it a highly scrutinized material in solid-state chemistry.

This material is primarily valued for its role in energy conversion technologies. Its electronic character allows it to serve as a critical component in thin-film solar cells, where it is often utilized as a buffer layer to improve device performance and stability.

At a glance

Key Properties

Cross-validated computational properties for indium(III) sulfide, aggregated across 5 databases.

Band Gap

0.28–1.60 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
3 DFT sources

Structures

25
5 databases, 7 space groups
Validation

Cross-Source DFT Agreement

How well independent DFT databases agree on the thermodynamics of In2S3. Tight agreement means computed properties can be trusted without re-running calculations.

Agreement Score

1.00 / 1.00
Trust tier: medium

Hull Spread

0.000 eV
EAH spread across sources

Sources Compared

2
jarvis, materials_project

Space Group Consensus

All match
Uses

Applications

Where indium(III) sulfide is used.

thin-film photovoltaicsbuffer layers in solar cellsoptoelectronic devicesphotodetectors
Intellectual Property

Patent Landscape

1 patent reference In2S3 or close compositional variants.

PatentTitleAssigneeGranted
8053029Method for fabricating CuInS2 thin film by metal organic chemical vapor deposition, CuInS2 thin film fabricate
Reference

Frequently Asked Questions

Common questions about indium(III) sulfide, answered from cross-validated data.

What is In2S3?

Indium(III) sulfide is a stable semiconducting compound widely utilized in the development of high-efficiency thin-film solar cells and optoelectronic components.

More questions
What is In2S3 used for?
indium(III) sulfide (In2S3) is used in thin-film photovoltaics, buffer layers in solar cells, optoelectronic devices, and photodetectors.
What is the band gap of In2S3?
indium(III) sulfide (In2S3) has a DFT-computed band gap of 0.28–1.60 eV across 25 reported structures.
Is In2S3 a metal, semiconductor, or insulator?
With a band gap up to 1.60 eV it is a semiconductor.
Is In2S3 thermodynamically stable?
Yes — indium(III) sulfide (In2S3) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of In2S3 are known?
25 structures of In2S3 are reported across 5 databases, spanning 7 distinct space groups.
What elements does In2S3 contain?
indium(III) sulfide (In2S3) contains In and S (2 elements).
Where does the data for In2S3 come from?
In2S3 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a prominent binary chalcogenide, indium(III) sulfide stands out for its robust thermodynamic stability and well-characterized structural landscape, positioning it as a foundational material for research into indium-based semiconductor systems.

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

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