Description

Cesium Lead Triiodide (Low Water Content) is an inorganic perovskite compound with the chemical formula CsPbI₃. This material is of significant commercial and research interest due to its exceptional optoelectronic properties, particularly its high absorption coefficient and suitable bandgap for photovoltaic applications. It is primarily utilized in the development of next-generation solar cells, photodetectors, and light-emitting diodes (LEDs). The low water content grade is critical for ensuring stability and optimal performance in sensitive electronic and optoelectronic device fabrication.

Application

• Perovskite Solar Cells (PSCs): As a key light-absorbing layer in high-efficiency, thin-film photovoltaic devices.
• Photodetectors & Sensors: For creating sensitive light detection components in imaging and communication systems.
• Light-Emitting Diodes (LEDs & PeLEDs): Serving as an emissive layer in displays and solid-state lighting technologies.
• Semiconductor Research & Development: As a model compound for studying perovskite crystal structure, stability, and charge transport properties.
• Quantum Dot Synthesis: As a precursor material for synthesizing CsPbI₃ perovskite quantum dots with tunable emission.
• X-ray & Radiation Detection: Exploiting its high atomic number for efficient detection of high-energy photons.

Basic Information

Product Name	Cesium Lead Triiodide (Low Water Content)
CAS No.	18041-25-3
Molecular Formula	CsPbI₃
Molecular Weight	922.81 g/mol
Synonyms	Cesium Lead Iodide; Cesium Plumbous Triiodide; CsPbI₃; Cesium Lead(II) Triiodide; Perovskite CsPbI₃; Lead Cesium Iodide; Cesium Triiodoplumbate(II); Black Phase Cesium Lead Iodide
EINECS	Contact for details

Quality Control

Our Cesium Lead Triiodide (Low Water Content) is manufactured under controlled conditions to ensure batch-to-batch consistency and high purity, which is essential for reproducible device performance. Quality is verified through a suite of analytical techniques including X-ray diffraction (XRD) for phase purity, inductively coupled plasma (ICP) analysis for stoichiometry, and Karl Fischer titration for precise water content determination. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. This material is strictly light-sensitive and hygroscopic (moisture-sensitive). For long-term stability, store under an inert atmosphere (argon or nitrogen) in a cool, dry place at room temperature (15-25°C). Minimize exposure to air and moisture during handling to prevent degradation.

Specification

Item	Specification
Appearance	Black to dark brown powder or crystals
Identification (XRD)	Conforms to α-phase (perovskite) CsPbI₃
Purity (CsPbI₃)	≥ 99.9% (by ICP-OES)
Water Content (KF)	≤ 0.1% w/w
Lead (Pb) Content	22.4 - 22.6% (by ICP)
Cesium (Cs) Content	14.4 - 14.6% (by ICP)
Iodine (I) Content	Balance
Particle Size (D50)	1-10 µm (or as specified)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.