CsPbBr₃ Powder

Description

CsPbBr₃ Powder (Caesium Lead Bromide Perovskite)

Basic Information
CAS Number: 15243-48-8
Chemical Formula: CsPbBr₃
Molecular Weight: 579.82 g/mol
Synonyms: Cesium Lead Tribromide, Cesium Lead Bromide, CsPbBr₃ Perovskite
Appearance: Yellow or orange powder

Material Properties
Perovskite Structure: CsPbBr₃ crystallizes in a stable cubic perovskite phase, exhibiting excellent optoelectronic properties.
Moderate Bandgap Semiconductor: Exhibits a direct bandgap of ~2.3 eV, making it suitable for visible-light optoelectronic applications.
High Photoluminescence Quantum Yield (PLQY): Superior luminescence efficiency, making it a key material for light-emitting applications.
Enhanced Stability: Compared to organic-inorganic perovskites (e.g., MAPbBr₃), CsPbBr₃ offers improved thermal and chemical stability, making it more durable in device applications.
Tunable Optical Properties: The bandgap can be adjusted by halide substitution (e.g., Br⁻ → Cl⁻ or I⁻), enabling wavelength control in optoelectronics.

Applications
Perovskite Light-Emitting Diodes (PeLEDs):
Strong photoluminescence and high stability make CsPbBr₃ a leading material for green PeLEDs used in displays and lighting.
Photodetectors:
High absorption in the visible spectrum, enabling use in high-performance visible-light photodetectors.
X-ray Detection & Scintillators:
Investigated for applications in X-ray detectors and scintillator materials due to its superior optoelectronic properties.
Tandem Solar Cells:
Used as a wide-bandgap layer in tandem perovskite solar cells, enhancing energy conversion efficiency.
Quantum Dots & Nanocrystals:
CsPbBr₃ quantum dots are widely studied for high-performance LED displays, nanophotonics, and quantum optics.