In2Se3

indium selenide · indium(III) selenide

In2Se3 is a stable semiconducting compound of indium and selenium widely researched for its diverse structural phases and potential in electronic device applications.

InSe
Crystal structure of In2Se3
Ground-state structure · Materials Project
Overview

About indium selenide

Indium selenide is a semiconducting material known for its robust thermodynamic stability. It exists in numerous structural configurations, reflecting a high degree of complexity that makes it a subject of significant interest in materials science research. Its ability to maintain stability across various phases allows for diverse experimental investigations into its physical properties.

This compound is primarily utilized in the development of next-generation optoelectronic devices and thin-film technologies. Because it sits on the convex hull, it serves as a reliable candidate for applications requiring consistent electronic performance and structural integrity under operational conditions.

At a glance

Key Properties

Cross-validated computational properties for indium selenide, aggregated across 6 databases.

Band Gap

0.10–0.99 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
4 DFT sources

Structures

32
6 databases, 9 space groups
Validation

Cross-Source DFT Agreement

How well independent DFT databases agree on the thermodynamics of In2Se3. 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

4
aflow, jarvis, materials_project, nomad

Space Group Consensus

All match
Uses

Applications

Where indium selenide is used.

PhotovoltaicsOptoelectronicsThin-film semiconductorsPhase-change memory devices
Reference

Frequently Asked Questions

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

What is In2Se3?

In2Se3 is a stable semiconducting compound of indium and selenium widely researched for its diverse structural phases and potential in electronic device applications.

More questions
What is In2Se3 used for?
indium selenide (In2Se3) is used in photovoltaics, optoelectronics, thin-film semiconductors, and phase-change memory devices.
What is the band gap of In2Se3?
indium selenide (In2Se3) has a DFT-computed band gap of 0.10–0.99 eV across 32 reported structures.
Is In2Se3 a metal, semiconductor, or insulator?
With a band gap up to 0.99 eV it is a semiconductor.
Is In2Se3 thermodynamically stable?
Yes — indium selenide (In2Se3) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of In2Se3 are known?
32 structures of In2Se3 are reported across 6 databases, spanning 9 distinct space groups.
What elements does In2Se3 contain?
indium selenide (In2Se3) contains In and Se (2 elements).
Where does the data for In2Se3 come from?
In2Se3 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a highly studied and thermodynamically stable semiconductor, this compound represents a foundational material within the broader family of indium-chalcogenide systems, serving as a benchmark for structural and electronic characterization in the field.

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

Analyze In2Se3 in the Lattice Graph platform

Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.

Explore the Platform →