InP

Indium phosphide · InP

Indium phosphide is a high-performance semiconductor material essential for the manufacturing of high-speed electronic and optoelectronic devices.

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

About Indium phosphide

Indium phosphide is a binary III-V semiconductor that occupies a central position in modern materials science due to its robust thermodynamic stability. Its electronic structure makes it a highly efficient material for high-frequency electronic devices and advanced photonic applications.

As a widely studied material with a vast array of documented structural phases, it serves as a cornerstone for high-performance optoelectronic components. Its ability to facilitate rapid electron mobility ensures its continued relevance in the development of next-generation communication technologies.

At a glance

Key Properties

Cross-validated computational properties for Indium phosphide, aggregated across 5 databases.

Band Gap

0.45–0.53 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
3 DFT sources

Structures

62
5 databases, 17 space groups
Validation

Cross-Source DFT Agreement

How well independent DFT databases agree on the thermodynamics of InP. 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
Synthesis

Synthesis Routes

Literature-extracted synthesis procedures targeting InP.

Sol Gel
Procedure available · ceder_sol_gel
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
Uses

Applications

Where Indium phosphide is used.

Fiber-optic communicationsHigh-frequency transistorsPhotodetectorsSolar cellsLaser diodes
Intellectual Property

Patent Landscape

7 patents reference InP or close compositional variants.

PatentTitleAssigneeGranted
11578266Silyl phosphine compound, process for producing silyl phosphine compound and process for producing InP quantum
7648689Process for the production of InP fine particles and InP fine particle dispersion obtained by the process
4388383Devices having chemically modified p-type InP surfaces
11512253Fabrication method of InP based quantum dot by using aminophosphine type P precursor and core size-sorting pro
11692134Method for producing InP quantum dot precursor and method for producing InP-based quantum dot
4049373Apparatus for producing compact polycrystalline InP and GaP ingots
11746289InP-based nanocluster, and method of preparing InP-based nanoparticle
Reference

Frequently Asked Questions

Common questions about Indium phosphide, answered from cross-validated data.

What is InP?

Indium phosphide is a high-performance semiconductor material essential for the manufacturing of high-speed electronic and optoelectronic devices.

More questions
What is InP used for?
Indium phosphide (InP) is used in fiber-optic communications, high-frequency transistors, photodetectors, solar cells, and laser diodes.
What is the band gap of InP?
Indium phosphide (InP) has a DFT-computed band gap of 0.45–0.53 eV across 62 reported structures.
Is InP a metal, semiconductor, or insulator?
With a band gap up to 0.53 eV it is a semiconductor.
Is InP thermodynamically stable?
Yes — Indium phosphide (InP) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of InP are known?
62 structures of InP are reported across 5 databases, spanning 17 distinct space groups.
How is InP synthesized?
Literature-reported routes for InP include sol gel, solid state (5 procedures documented).
What elements does InP contain?
Indium phosphide (InP) contains In and P (2 elements).
Where does the data for InP come from?
InP data is cross-referenced from latticegraph.
Comparison

How It Compares

Within the iii-v semiconductors class.

Within the family of III-V semiconductors, indium phosphide is distinguished by its superior carrier mobility compared to wide-gap members like aluminum nitride or gallium nitride, making it better suited for high-speed signal processing and infrared detection.

Explore

Related Compounds

Other III-V Semiconductors in the database.

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

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