Rb3V5O14

Rb3V5O14 is a thermodynamically stable semiconducting oxide containing rubidium and vanadium.

ORbV
Crystal structure of Rb3V5O14 (trigonal, P31m (No. 157))
Ground-state structure · Materials Project
Overview

About Rb3V5O14

Rb3V5O14 is a complex oxide composed of rubidium, vanadium, and oxygen. As a thermodynamically stable phase located on the convex hull, it represents a robust crystalline arrangement that is well-suited for systematic investigation in solid-state chemistry.

This compound exhibits semiconducting electronic behavior, making it an intriguing candidate for research into electronic and optical materials. Its structural diversity, evidenced by multiple reported configurations, highlights its significance as a subject for understanding vanadium-based oxide frameworks.

At a glance

Key Properties

Cross-validated computational properties for Rb3V5O14, aggregated across 3 databases.

Band Gap

2.05–2.39 eV
Range across DFT structures · ground state: wide gap

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

Stable
3 DFT sources

Structures

6
3 databases, 1 space group
Validation

Cross-Source DFT Agreement

How well independent DFT databases agree on the thermodynamics of Rb3V5O14. 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

3
jarvis, materials_project, oqmd

Space Group Consensus

All match
Crystallography

Reported Structures

Lowest-energy structures reported for Rb3V5O14, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
——2.390.0000-2.372—
P31m (No. 157)trigonal2.240.0000-7.7573.51
P31m (No. 157)trigonal2.050.0000-2.517—
——2.390.0001-2.372—
P31m (No. 157)trigonal———3.55
P31m (No. 157)trigonal———3.28
P31m (No. 157)trigonal———3.36
P31m (No. 157)trigonal———3.52
P31m (No. 157)trigonal———3.52
Uses

Applications

Where Rb3V5O14 is used.

Solid-state materials researchElectronic component developmentFundamental crystallographic studies
Reference

Frequently Asked Questions

Common questions about Rb3V5O14, answered from cross-validated data.

What is Rb3V5O14?

Rb3V5O14 is a thermodynamically stable semiconducting oxide containing rubidium and vanadium.

More questions
What is Rb3V5O14 used for?
Rb3V5O14 is used in solid-state materials research, electronic component development, and fundamental crystallographic studies.
What is the band gap of Rb3V5O14?
Rb3V5O14 has a DFT-computed band gap of 2.05–2.39 eV across 6 reported structures. Standard DFT underestimates band gaps, so the measured gap is typically larger.
Is Rb3V5O14 a metal, semiconductor, or insulator?
DFT predicts a band gap of up to 2.39 eV (a semiconductor). Measured gaps are typically larger.
Is Rb3V5O14 thermodynamically stable?
Yes — Rb3V5O14 sits on the convex hull (energy above hull 0 eV/atom), i.e. stable.
What is the crystal structure of Rb3V5O14?
The reference structure of Rb3V5O14 is trigonal symmetry, space group P31m (No. 157).
What is the density of Rb3V5O14?
The computed density of the ground-state structure of Rb3V5O14 is 3.51 g/cm³.
How many polymorphs of Rb3V5O14 are known?
6 structures of Rb3V5O14 are reported across 3 databases, spanning 1 distinct space group.
What elements does Rb3V5O14 contain?
Rb3V5O14 contains O, Rb, and V (3 elements).
Where does the data for Rb3V5O14 come from?
Rb3V5O14 data is cross-referenced from oqmd, materials_project, jarvis, mpaloe, cod.
Comparison

How It Compares

As a distinct vanadium-based oxide, Rb3V5O14 serves as a foundational example of stable ternary systems within its chemical family. It provides a benchmark for structural complexity and electronic properties in rubidium-vanadate materials, offering a baseline for future comparative studies of similar alkali-metal transition metal oxides.

Data sources & attribution
  • oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
  • materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
  • jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
  • mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
  • cod — Data from the Crystallography Open Database (crystallography.net/cod/). Cite: Grazulis et al., J. Appl. Cryst. 42, 726 (2009). (CC0-1.0)

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