TbF3

Terbium(III) fluoride · Terbium trifluoride

Terbium(III) fluoride is a stable, insulating rare-earth compound widely utilized for its optical properties in advanced material technologies.

FTb
Crystal structure of TbF3
Ground-state structure · Materials Project
Overview

About Terbium(III) fluoride

Terbium(III) fluoride is a robust, wide-band-gap insulating compound that holds a stable position on the thermodynamic convex hull. Its structural versatility is highlighted by its presence in multiple reported crystalline arrangements, making it a well-documented material in inorganic chemistry. The compound is valued for its ability to maintain stability under various conditions, which is essential for its performance in high-precision technical environments. It serves as a critical precursor and functional component in advanced optical and electronic applications where chemical and thermal resilience are paramount. Its unique electronic character allows it to interact effectively with light, facilitating its use in specialized photonic devices.

At a glance

Key Properties

Cross-validated computational properties for Terbium(III) fluoride, aggregated across 3 databases.

Band Gap

7.76 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

11
3 databases, 3 space groups
Uses

Applications

Where Terbium(III) fluoride is used.

Optical coatingsLaser host materialsPhosphor synthesisPrecursor for terbium-based materials
Reference

Frequently Asked Questions

Common questions about Terbium(III) fluoride, answered from cross-validated data.

What is TbF3?

Terbium(III) fluoride is a stable, insulating rare-earth compound widely utilized for its optical properties in advanced material technologies.

More questions
What is TbF3 used for?
Terbium(III) fluoride (TbF3) is used in optical coatings, laser host materials, phosphor synthesis, and precursor for terbium-based materials.
What is the band gap of TbF3?
Terbium(III) fluoride (TbF3) has a DFT-computed band gap of 7.76 eV across 11 reported structures.
Is TbF3 a metal, semiconductor, or insulator?
With a wide band gap up to 7.76 eV it is an insulator / wide-band-gap material.
Is TbF3 thermodynamically stable?
Yes — Terbium(III) fluoride (TbF3) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of TbF3 are known?
11 structures of TbF3 are reported across 3 databases, spanning 3 distinct space groups.
What elements does TbF3 contain?
Terbium(III) fluoride (TbF3) contains F and Tb (2 elements).
Where does the data for TbF3 come from?
TbF3 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a rare-earth fluoride, TbF3 represents a stable and highly reliable member of the lanthanide halide family. It is distinguished by its structural diversity and thermodynamic robustness, which allow it to function effectively in demanding environments where other, less stable halides might fail. Its role within the broader class of insulating fluorides is defined by its specific electronic properties, which make it a preferred choice for applications requiring high optical clarity and long-term chemical durability.

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

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