Bi2O7Te2

Bi2O7Te2 is a stable semiconducting bismuth tellurite oxide used in materials science research.

BiOTe
Crystal structure of Bi2O7Te2
Ground-state structure · Materials Project
Overview

About Bi2O7Te2

Bi2O7Te2 is a complex bismuth tellurite oxide that exists as a thermodynamically stable phase on the convex hull. Its electronic character as a semiconductor makes it an intriguing subject for research into oxide-based functional materials.

Because it occupies a stable position in the phase space, this compound represents a well-defined structural arrangement of bismuth, tellurium, and oxygen. It is primarily studied for its potential roles in specialized electronic or optical material frameworks.

At a glance

Key Properties

Cross-validated computational properties for Bi2O7Te2, aggregated across 3 databases.

Band Gap

2.56 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
1 DFT source

Structures

3
3 databases, 1 space group
Validation

Cross-Source DFT Agreement

How well independent DFT databases agree on the thermodynamics of Bi2O7Te2. 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

1
materials_project

Space Group Consensus

All match
Uses

Applications

Where Bi2O7Te2 is used.

Semiconductor researchOxide material developmentSolid-state chemistry studies
Reference

Frequently Asked Questions

Common questions about Bi2O7Te2, answered from cross-validated data.

What is Bi2O7Te2?

Bi2O7Te2 is a stable semiconducting bismuth tellurite oxide used in materials science research.

More questions
What is Bi2O7Te2 used for?
Bi2O7Te2 is used in semiconductor research, oxide material development, and solid-state chemistry studies.
What is the band gap of Bi2O7Te2?
Bi2O7Te2 has a DFT-computed band gap of 2.56 eV across 3 reported structures.
Is Bi2O7Te2 a metal, semiconductor, or insulator?
With a band gap up to 2.56 eV it is a semiconductor.
Is Bi2O7Te2 thermodynamically stable?
Yes — Bi2O7Te2 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of Bi2O7Te2 are known?
3 structures of Bi2O7Te2 are reported across 3 databases, spanning 1 distinct space group.
What elements does Bi2O7Te2 contain?
Bi2O7Te2 contains Bi, O, and Te (3 elements).
Where does the data for Bi2O7Te2 come from?
Bi2O7Te2 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a distinct bismuth tellurite, Bi2O7Te2 serves as a foundational example of this specific chemical family, representing a stable stoichiometry that provides a benchmark for understanding how bismuth and tellurium interact within an oxide lattice.

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

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