18041-25-3

Basic information

• Product Name: cesium lead iodide
• CAS NO: 18041-25-3
• Molecular Weight: 720.819
• Mol File: 18041-25-3.mol
• Article Data: 48

Chemical Properties

• Melting Point: 481 °C
• CAS DataBase Reference: cesium lead iodide(CAS DataBase Reference)
• NIST Chemistry Reference: cesium lead iodide(18041-25-3)
• EPA Substance Registry System: cesium lead iodide(18041-25-3)

Safety Data

• Hazardous Substances Data: 18041-25-3(Hazardous Substances Data)

Usage

General Description

Cesium lead iodide is a compound with the chemical formula CsPbI3, which is a hybrid perovskite material known for its promising optoelectronic and photovoltaic properties. It is a semiconductor with a direct bandgap, making it suitable for use in solar cells and light-emitting devices. Cesium lead iodide has a high absorption coefficient and excellent photoluminescence efficiency, making it an attractive material for the development of efficient and low-cost photovoltaic technologies. However, the toxicity of lead in this compound raises concerns about its environmental and health impacts, prompting research into alternative lead-free perovskite materials for optoelectronic applications.

Upstream product

• 3396-11-0 cesium acetate 
• 10101-63-0 lead(II) iodide 
• 534-17-8 caesium carbonate 
• 10139-47-6 zinc(II) iodide 
• 7787-69-1 caesium bromide 
• 10034-85-2 hydrogen iodide 
• 638-39-1 tin(II) acetate 
• 6080-56-4 lead(II) acetate trihydrate 
• 15243-48-8 cesium lead bromide 
• 311-28-4 tetra-(n-butyl)ammonium iodide 
• 15243-48-8 CsPbBr₃ 

Downstream Products

• 15243-48-8 CsPbBr₃ 
• 15243-48-8 cesium lead bromide 

Relevant articles and documents

Revealing the Role of Tin(IV) Halides in the Anisotropic Growth of CsPbX3 Perovskite Nanoplates

CsPbX3 perovskite nanoplates (PNPLs) were formed in a synthesis driven by SnX4 (X=Cl, Br, I) salts. The role played by these hard Lewis acids in directing PNPL formation is addressed. Sn4+ disturbs the acid–base equilibrium of the system, increasing the protonation rate of oleylamine and inducing anisotropic growth of nanocrystals. Sn4+ cations influence the reaction dynamics owing to complexation with oleylamine molecules. By monitoring the photoluminescence excitation and photoluminescence (PL) spectra of the PNPLs grown at different temperatures, the influence of the thickness on their optical properties is mapped. Time-resolved and spectrally resolved PL for colloidal dispersions with different optical densities reveals that the dependence of the overall PL lifetime on the emission wavelength do not originate from energy transfer between PNPLs but from the contribution of PNPLs with distinct thickness, indicating that thicker PNPLs exhibit longer PL lifetimes.

Self-trap-state-adjustable photoluminescence of quasi-one-dimensional RbPbI3and Cs substitutional counterparts

The “self-trap state” in low demensional halide perovskites usually induces highly efficient below-gap broadband luminescence, which makes them promising fluorescence emitting materials. However, the luminescence mechanism based on the “self-trap state” is not well understood as yet. In this work, solution-grown quasi-one-dimensional RbPbI3crystals reveal a large Stokes shift of ～0.57 eV, wide and strong luminescence, and a linear power-dependent luminescence, whose luminescence mechanism was attributed to the formation of a “self-trap state” in RbPbI3. Furthermore, Cs substitutional counterpart (RbxCs1?x)PbI3crystals were found to adjust the distortions of the PbI6octahedron and the self-trap-state-induced luminescence properties. Our work provides a new strategy to control the “self-trap-state”-induced luminescence in low demensional halide perovskite materials.

Polar Solvent Induced Lattice Distortion of Cubic CsPbI3 Nanocubes and Hierarchical Self-Assembly into Orthorhombic Single-Crystalline Nanowires

Despite the recent surge of interest in inorganic lead halide perovskite nanocrystals, there are still significant gaps in their stability disturbance and the understanding of their destabilization, assembly, and growth processes. Here, we discover that p

Stable and Efficient Upconversion Single Red Emission from CsPbI3Perovskite Quantum Dots Triggered by Upconversion Nanoparticles

Here, composites including highly efficient inert shell-modified NaYF4:Yb/Tm@NaYF4 upconversion nanoparticles (UCNPs) and CsPbI3 perovskite quantum dots (PQDs) have been successfully synthesized by the assistance of (3-aminopropyl)triethoxysilane (APTES) as a precursor for a SiO2 matrix. UCNPs and CsPbI3 PQDs in this composite structure show excellent stability in ambient conditions. Importantly, the efficient UC emission of CsPbI3 PQDs was realized, which means that the single red emission of inert shell-modified UCNPs can be easily obtained by depending on these composite structures. Furthermore, the single red emission wavelength can be easily regulated from 705 to 625 nm by introducing appropriate proportion of Br- ions, which is very difficult to achieve for traditional UCNPs. Moreover, benefiting from the efficient downshifting (DS) red emission of CsPbI3 PQDs, the composites possess the dual-wavelength excitation characteristics. So, the excellent dual-mode anticounterfeiting application has been demonstrated. This work will provide a new idea for the development of perovskite-based multifunctional materials.

Enhanced efficiency and stability of perovskite solar cells by partial replacement of CH3NH3 + with inorganic Cs+ in CH3NH3PbI3 perovskite absorber layer

In this work, we have investigated the (MA)1?xCsxPbI3(MA = CH3NH3; x = 0–1) perovskite based solar cells. The x-ray diffraction analysis revealed that crystal structure of the material has been transf

All-Inorganic Quantum-Dot LEDs Based on a Phase-Stabilized α-CsPbI3 Perovskite

The all-inorganic nature of CsPbI3 perovskites allows to enhance stability in perovskite devices. Research efforts have led to improved stability of the black phase in CsPbI3 films; however, these strategies—including strain and doping—are based on organic-ligand-capped perovskites, which prevent perovskites from forming the close-packed quantum dot (QD) solids necessary to achieve high charge and thermal transport. We developed an inorganic ligand exchange that leads to CsPbI3 QD films with superior phase stability and increased thermal transport. The atomic-ligand-exchanged QD films, once mechanically coupled, exhibit improved phase stability, and we link this to distributing strain across the film. Operando measurements of the temperature of the LEDs indicate that KI-exchanged QD films exhibit increased thermal transport compared to controls that rely on organic ligands. The LEDs exhibit a maximum EQE of 23 % with an electroluminescence emission centered at 640 nm (FWHM: ≈31 nm). These red LEDs provide an operating half-lifetime of 10 h (luminance of 200 cd m?2) and an operating stability that is 6× higher than that of control devices.

Kinetically Stable Single Crystals of Perovskite-Phase CsPbI3

We use a solid-state method to synthesize single crystals of perovskite-phase cesium lead iodide (γ-CsPbI3) that are kinetically stable at room temperature. Single crystal X-ray diffraction characterization shows the compound is orthorhombic with the GdFeO3 structure at room temperature. Unlike conventional semiconductors, the optical absorption and joint density-of-states of bulk γ-CsPbI3 is greatest near the band edge and decreases beyond the Eg for at least 1.9 eV. Bulk γ-CsPbI3 does not show an excitonic resonance and has an optical band gap of 1.63(3) eV, ～90 meV smaller than has been reported in thin films; these and other differences indicate that previously measured thin film γ-CsPbI3 shows signatures of quantum confinement. By flowing gases in situ during powder X-ray diffraction measurements, we confirm that γ-CsPbI3 is stable to oxygen but rapidly and catalytically converts to non-perovskite -CsPbI3 in the presence of moisture. Our results provide vital parameters for theoretical and experimental investigations into perovskite-phase CsPbI3 that will the guide the design and synthesis of atmospherically stable inorganic halide perovskites.

Perovskite as Recyclable Photocatalyst for Annulation Reaction of N-Sulfonyl Ketimines

A sustainable and cost-effective manner for the photocatalytic annulation reaction of N-sulfonyl ketimines with N-arylglycines to synthesize imidazolidine-fused sulfamidates (31 examples) by employing CsPbBr3 as a heterogeneous photocatalyst has been developed. The catalyst CsPbBr3 can be simply recovered from the reaction mixture and reused at least five times without an obvious reduction in its photocatalytic reactivity, exhibiting a high catalyst economic feature.

Highly Photoluminescent CsPbBr3/CsPb2Br5NCs@TEOS Nanocomposite in Light-Emitting Diodes

All-inorganic halide perovskite (CsPb2Br5) nanocrystals (NCs) have received widespread attention owing to their unique photoelectric properties. This work reports a novel strategy to control the phase transition from CsPbBr3 to CsPb2Br5 and investigates the effects of different treatment times and treatment temperatures on perovskite NCs formation. By controlling the volume of tetraethoxysilane (TEOS) added, the formation of different phases of perovskite powder can be well controlled. In addition, a white light-emitting diode (WLED) device is designed by coupling the CsPbBr3/CsPbBr3-CsPb2Br5 NCs@TEOS nanocomposite and CaAlSiN3:Eu2+ commercial phosphor with a 460 nm InGaN blue chip, exhibiting a high luminous efficiency of 57.65 lm/W, color rendering index (CRI) of 91, and a low CCT of 5334 K. The CIE chromaticity coordinates are (0.3363, 0.3419). This work provides a new strategy for the synthesis of CsPbBr3/CsPbBr3-CsPb2Br5 NCs@TEOS nanocomposite, which can be applied to the field of WLEDs and display devices.