LiNbO3

Lithium niobate · LN

Lithium niobate is a stable, insulating oxide widely used in optical and electronic devices for its unique ability to manipulate light and acoustic waves.

Crystal structure of LiNbO3
Ground-state structure · Materials Project
Overview

About Lithium niobate

Lithium niobate is a thermodynamically stable oxide that serves as a cornerstone material in modern optical technology. As a wide-gap insulator, it possesses exceptional electro-optic, piezoelectric, and photorefractive characteristics that make it highly versatile for signal processing and light manipulation.

Its structural robustness is evidenced by its presence on the convex hull, ensuring long-term reliability in demanding environments. It is widely utilized in the fabrication of surface acoustic wave devices and integrated optical components, where its ability to modulate light and sound is unparalleled.

At a glance

Key Properties

Cross-validated computational properties for Lithium niobate, aggregated across 3 databases.

Band Gap

2.27–3.68 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

30
3 databases, 8 space groups
Synthesis

Synthesis Routes

Literature-extracted synthesis procedures targeting LiNbO3.

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 Lithium niobate is used.

Surface acoustic wave filtersElectro-optic modulatorsOptical waveguidesFrequency convertersQ-switches
Intellectual Property

Patent Landscape

3 patents reference LiNbO3 or close compositional variants.

PatentTitleAssigneeGranted
11811056One-pot synthesis for LiNbO3 coated spinel
10202510Pigments based on LiSbO3 and LiNbO3 related structures
4196963Method for eliminating Li.sub.2 O out-diffusion in LiNbO.sub.3 and LiTaO.sub.3 waveguide structures
Reference

Frequently Asked Questions

Common questions about Lithium niobate, answered from cross-validated data.

What is LiNbO3?

Lithium niobate is a stable, insulating oxide widely used in optical and electronic devices for its unique ability to manipulate light and acoustic waves.

More questions
What is LiNbO3 used for?
Lithium niobate (LiNbO3) is used in surface acoustic wave filters, electro-optic modulators, optical waveguides, frequency converters, and q-switches.
What is the band gap of LiNbO3?
Lithium niobate (LiNbO3) has a DFT-computed band gap of 2.27–3.68 eV across 30 reported structures.
Is LiNbO3 a metal, semiconductor, or insulator?
With a wide band gap up to 3.68 eV it is an insulator / wide-band-gap material.
Is LiNbO3 thermodynamically stable?
Yes — Lithium niobate (LiNbO3) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of LiNbO3 are known?
30 structures of LiNbO3 are reported across 3 databases, spanning 8 distinct space groups.
How is LiNbO3 synthesized?
Literature-reported routes for LiNbO3 include sol gel, solid state (10 procedures documented).
What elements does LiNbO3 contain?
Lithium niobate (LiNbO3) contains Li, Nb, and O (3 elements).
Where does the data for LiNbO3 come from?
LiNbO3 data is cross-referenced from latticegraph.
Comparison

How It Compares

Within the lithium oxides class.

Unlike the battery-focused cathode materials in its class such as LiCoO2 and LiNiO2, which are designed for reversible ion intercalation and electrochemical energy storage, lithium niobate is primarily valued for its dielectric and optical properties. While its siblings are optimized for ionic conductivity and redox activity, lithium niobate stands apart as a specialized functional material for high-frequency electronics and laser technology.

Explore

Related Compounds

Other Lithium Oxides in the database.

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

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