CsPbBr3

Cesium lead bromide · CPB

CsPbBr3 is a stable, semiconducting halide perovskite widely researched for its potential in high-efficiency solar cells and light-emitting diodes.

Crystal structure of CsPbBr3
Ground-state structure · Materials Project
Overview

About Cesium lead bromide

CsPbBr3 is a prominent member of the halide perovskite family, characterized by its semiconducting electronic structure. As a material that sits on the convex hull, it exhibits notable thermodynamic stability, making it a subject of extensive structural investigation across multiple crystallographic databases.

This compound is primarily valued for its role in advanced optoelectronic applications. Its ability to maintain structural integrity while providing favorable electronic properties positions it as a key candidate for next-generation solar energy conversion and light-emitting technologies.

At a glance

Key Properties

Cross-validated computational properties for Cesium lead bromide, aggregated across 2 databases.

Band Gap

1.78–2.88 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
1 DFT source

Structures

20
2 databases, 4 space groups
Synthesis

Synthesis Routes

Literature-extracted synthesis procedures targeting CsPbBr3.

Sol Gel
Procedure available · ceder_sol_gel
Solid State
Procedure available · ceder_solid_state
Solid State
Procedure available · ceder_solid_state
Uses

Applications

Where Cesium lead bromide is used.

PhotovoltaicsLight-emitting diodesPhotodetectorsRadiation detection
Reference

Frequently Asked Questions

Common questions about Cesium lead bromide, answered from cross-validated data.

What is CsPbBr3?

CsPbBr3 is a stable, semiconducting halide perovskite widely researched for its potential in high-efficiency solar cells and light-emitting diodes.

More questions
What is CsPbBr3 used for?
Cesium lead bromide (CsPbBr3) is used in photovoltaics, light-emitting diodes, photodetectors, and radiation detection.
What is the band gap of CsPbBr3?
Cesium lead bromide (CsPbBr3) has a DFT-computed band gap of 1.78–2.88 eV across 20 reported structures.
Is CsPbBr3 a metal, semiconductor, or insulator?
With a band gap up to 2.88 eV it is a semiconductor.
Is CsPbBr3 thermodynamically stable?
Yes — Cesium lead bromide (CsPbBr3) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of CsPbBr3 are known?
20 structures of CsPbBr3 are reported across 2 databases, spanning 4 distinct space groups.
How is CsPbBr3 synthesized?
Literature-reported routes for CsPbBr3 include sol gel, solid state (3 procedures documented).
What elements does CsPbBr3 contain?
Cesium lead bromide (CsPbBr3) contains Br, Cs, and Pb (3 elements).
Where does the data for CsPbBr3 come from?
CsPbBr3 data is cross-referenced from latticegraph.
Comparison

How It Compares

Within the halide perovskite photovoltaics class.

Within the diverse landscape of halide perovskites, CsPbBr3 is distinguished by its robust stability compared to more volatile counterparts like CsSnI3. While many members of this class face challenges regarding environmental degradation, this lead-based bromide variant remains one of the most reliable and well-characterized systems for studying fundamental perovskite physics.

Explore

Related Compounds

Other Halide Perovskite Photovoltaics in the database.

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

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