Direct batch procurement of factory-certified electronic precursors, fine inorganic compounds, and high-purity gases from YANXA.
Understanding the synthesis precision, crystallographic morphology, and ultralow trace-metal thresholds required by leading research institutes and commercial gigafactories.
Lead (II) iodide crystallizes in a hexagonal, cadmium iodide-type layered lattice (space group P-3m1). The covalent bonding within the I-Pb-I sheets and weak van der Waals forces between adjacent layers enable precise solvent intercalation during hybrid organic-inorganic perovskite deposition (e.g., MAPbI3, FAPbI3), dictating film crystallinity and grain size control.
For semiconductor and photovoltaic operations, foreign cation or transition-metal contamination (Fe, Cu, Ni, Cr) acts as non-radiative recombination centers. Our specialized aqueous precipitation and multi-stage zone refining yield an ultrapure grade with transition metals strictly below 1 ppm, ensuring carrier lifetime stability.
Engineered with controlled bulk density and moisture levels under 50 ppm, YANXA electronic-grade PbI2 dissolves cleanly in polar aprotic solvents (DMF, DMSO, GBL) without colloidal precipitation. This guarantees superior precursor ink rheology for slot-die coating and meniscus-guided blade coating.
| Analytical Parameter | Industrial Grade (99.0%) | High-Purity Grade (99.9%) | Electronic / Solar Cell Grade (99.99%–99.999%) | Detection Methodology |
|---|---|---|---|---|
| Assay (PbI₂ Basis) | ≥ 99.0% | ≥ 99.9% | ≥ 99.995% | Complexometric Titration |
| Trace Transition Metals (Fe, Cu, Ni) | < 50 ppm | < 10 ppm | < 0.5 ppm | ICP-MS (High Resolution) |
| Moisture (Karl Fischer) | ≤ 0.2% | ≤ 0.05% | ≤ 0.005% (≤ 50 ppm) | Coulometric Titration |
| Insoluble Matter in DMF | < 0.05% | < 0.01% | Clear, colorless, 0% visible residue | Optical Turbidimetry |
| Chloride & Bromide (Cl, Br) | < 200 ppm | < 50 ppm | < 5 ppm | Ion Chromatography (IC) |
Strategic integration of high-grade non-ferrous precursor materials, large-scale continuous synthesis, and internationally certified dangerous goods logistics.
China commands the world's leading smelting and purification infrastructure for refined lead and iodine resources. Our plant is co-located near primary refining clusters, insulating tier-1 clients from raw material spot volatility and securing reliable delivery schedules across multi-ton production contracts.
Unlike Western boutique chemical suppliers that repackage small batches at exorbitant margins, our facility operates multi-ton reaction vessels with automated crystallization. This drives down cost-per-kilogram by 35%–50% while sustaining unmatched lot-to-lot homogeneity.
Lead compounds are regulated under UN 2291, Class 6.1 Toxic Substances. We provide full compliance engineering: UN-rated composite drums, nitrogen-flushed dual aluminum barrier foil lining, sea-freight dangerous goods declarations (IMO/IMDG), and express air freight approvals (IATA-DGR).
From gigawatt perovskite solar cell lines to medical radiation detector crystals, lead iodide remains foundational to high-efficiency energy harvesting and photonic sensing.
Perovskite photovoltaic modules have rapidly surged beyond 26% power conversion efficiency (PCE), with tandem silicon-perovskite systems topping 33%. Our electronic-grade PbI₂ acts as the stoichiometric backbone, delivering low trap-state densities and dense, pinhole-free film crystallization on scalable coating systems.
Because of its broad bandgap (2.3 eV), high atomic number (Z_Pb = 82, Z_I = 53), and elevated attenuation coefficient, single-crystal PbI₂ is synthesized into room-temperature radiation detection plates for digital radiography, nuclear monitoring, and non-destructive industrial CT testing.
In nanoscale optoelectronic devices, 2D layered lead iodide sheets exhibit remarkable quantum confinement effects and strong exciton binding energy. PbI2 thin films deposited via thermal vacuum evaporation provide ultra-fast photoresponse times in UV-visible broadband photodetector arrays.
How multinational corporate buyers, university labs, and clean-tech fabs evaluate Lead Iodide suppliers across technical and operational audits:
In-depth clarifications regarding purity, storage stability, solvent preparation, MOQ, and international safety shipping standards.
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