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VD0558 Lead Evaporation Materials, Pb

Material Type: Lead
Symbol: Pb
Purity: 99.9% ~ 99.99%
Shape: Powder/ Granule/ Custom-made

TFM is a leading producer and supplier of high-purity lead evaporation materials, along with a diverse range of other evaporation materials. We provide these materials in both powder and granule forms, with customization options available to meet specific requirements.

Introduction

Lead (Pb) evaporation materials are widely used in vacuum deposition processes for producing functional metallic and compound thin films. Due to its relatively low melting point and stable evaporation behavior, lead is particularly suitable for thermal evaporation techniques, enabling uniform coating formation in applications ranging from electronics to radiation shielding layers.


Detailed Description

Lead evaporation materials are typically supplied in the form of pellets, granules, shots, or custom-cut pieces to match various evaporation sources such as resistive boats, crucibles, or electron beam systems. With a melting point of approximately 327°C, lead can be efficiently evaporated using thermal evaporation, making it a cost-effective choice for many thin film processes.

High-purity Pb materials are essential for achieving consistent film quality, especially in semiconductor and research applications. The softness and ductility of lead allow for easy handling and shaping, while its high density contributes to stable evaporation rates and good film coverage.

In addition, lead can be used as a precursor for compound film deposition (e.g., lead-based chalcogenides or perovskite materials) through co-evaporation or reactive deposition techniques. Careful control of evaporation rate and chamber conditions is necessary to ensure uniform film thickness and composition.

Key features include:

  • Low melting point for efficient thermal evaporation

  • Stable evaporation behavior with controllable deposition rates

  • High density for uniform film formation

  • Available in multiple forms (pellets, granules, shots, pieces)

  • Suitable for both pure metal films and compound film preparation


Applications

Lead evaporation materials are widely used in:

  • Thin film electronics and semiconductor research

  • Radiation shielding coatings and protective layers

  • Infrared and optoelectronic materials (e.g., Pb-based compounds)

  • Perovskite and chalcogenide thin film deposition

  • Battery and energy-related research

  • General laboratory vacuum coating processes


Technical Parameters

ParameterTypical Value / RangeImportance
Chemical SymbolPbDefines material identity
Purity99.9% – 99.999%Ensures film consistency
FormPellets / Granules / Shots / PiecesMatches evaporation source
Particle Size1 – 10 mm (typical)Affects evaporation stability
Melting Point~327°CEnables thermal evaporation
Density11.34 g/cm³Influences deposition rate
Evaporation MethodThermal / E-beamProcess compatibility

Comparison with Related Materials

MaterialKey AdvantageTypical Application
PbLow melting point, easy evaporationGeneral thin films
SnLower toxicity alternativeElectronics coatings
BiHigh density, unique electronic propertiesThermoelectrics
PbTeInfrared and thermoelectric propertiesIR detectors

FAQ

QuestionAnswer
What evaporation method is best for Pb?Thermal evaporation is commonly used due to its low melting point.
Can Pb be used for compound film deposition?Yes, it is often used in co-evaporation for lead-based compounds.
What forms are available?Pellets, granules, shots, and custom shapes are available.
Is high purity necessary?Yes, especially for semiconductor and research applications.
Which industries use Pb evaporation materials?Electronics, optics, energy research, and laboratory coating.

Packaging

Our Lead Evaporation Materials are meticulously tagged and labeled externally to ensure efficient identification and maintain high standards of quality control. We take great care to prevent contamination and mechanical damage during storage and transportation, ensuring the materials arrive in excellent condition.


Conclusion

Lead (Pb) evaporation materials provide a practical and efficient solution for thin film deposition, offering stable evaporation characteristics and broad application versatility. With customizable forms and high purity options, they are well-suited for both industrial and research environments.

For detailed specifications and a quotation, please contact us at sales@thinfilmmaterials.com.

Ordering Table

Material Size Quantity Purity Part Number
Lead 1mm - 4mm Shot 100 g 99.999% EVMPB503MMD
Lead 1mm - 4mm Shot 200 g 99.999% EVMPB503MMH
Lead 1mm - 4mm Shot 1 kg 99.999% EVMPB503MMKG
Lead 1mm - 4mm Shot 500 g 99.999% EVMPB503MMT

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FAQ

  • They are high‐purity substances (e.g. metals, alloys, or compounds) used in thermal or electron‐beam evaporation processes to form thin films on substrates.

  • Typically, they’re processed into a form (often ingots, pellets, or wires) that can be efficiently vaporized. Preparation emphasizes high purity and controlled composition to ensure film quality.

  • Thermal evaporation and electron-beam (e-beam) evaporation are the two main techniques, where material is heated (or bombarded with electrons) until it vaporizes and then condenses on the substrate.

  • Thermal evaporation heats the material directly (often using a resistive heater), while e-beam evaporation uses a focused electron beam to locally heat and vaporize the source material—each method offering different control and energy efficiency.

  • Key parameters include source temperature, vacuum level, deposition rate, substrate temperature, and the distance between the source and the substrate. These factors influence film uniformity, adhesion, and microstructure.

  • Evaporation generally produces high-purity films with excellent control over thickness, and it is especially suitable for materials with relatively low melting points or high vapor pressures.

  • Challenges include issues with step coverage (due to line-of-sight deposition), shadowing effects on complex topographies, and possible re-evaporation of material from the substrate if temperature isn’t properly controlled.

  • Common evaporation materials include noble metals (e.g., gold, silver), semiconductors (e.g., silicon, germanium), metal oxides, and organic compounds—each chosen for its specific optical, electrical, or mechanical properties.

  • Selection depends on desired film properties (conductivity, optical transparency, adhesion), compatibility with the evaporation process, and the final device application (semiconductor, optical coating, etc.).

  • Optimizing substrate temperature, deposition rate, and chamber vacuum are critical for ensuring that the film adheres well and forms the intended microstructure without defects.

  • Troubleshooting may involve checking the source material’s purity, ensuring stable source temperature, verifying the vacuum level, adjusting the substrate’s position or temperature, and monitoring deposition rate fluctuations.

While evaporation tends to yield very high purity films with excellent thickness control, it is limited by its line-of-sight nature. In contrast, sputtering can deposit films more uniformly on complex surfaces and is more versatile for a broader range of materials.

 

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