Lead calcium titanate (Pb0.7Ca0.3TiO3) sputtering targets from Infinita Materials provide a dense, high-purity source material for depositing calcium-modified lead titanate perovskite thin films used in pyroelectric infrared sensing. Partial substitution of calcium for lead on the perovskite A-site lowers the ferroelectric Curie temperature and dielectric constant relative to pure PbTiO3 while preserving a strong pyroelectric response, giving device designers a tunable composition for uncooled detector applications. Each target is supplied by Infinita Materials with documented purity, dimensional, and compositional specifications suited to RF and RF-magnetron sputtering.
Lead calcium titanate (Pb₁₋ₓCaₓTiO₃) is a perovskite solid solution in which Ca²⁺ partially substitutes for Pb²⁺ on the A-site while Ti⁴⁺ occupies the octahedral B-site. At x = 0.3, calcium substitution reduces the tetragonal distortion and Curie temperature of PbTiO₃ while tuning polarisation, dielectric permittivity, and pyroelectric response. RF magnetron sputtering from dense ceramic targets enables controlled Pb: Ca stoichiometry and uniform thin films on platinised silicon, sapphire, and MgO. After crystallisation annealing, these films retain the perovskite structure and pyroelectric behaviour, making them valuable for uncooled infrared detectors, thermal imaging arrays, and passive infrared sensors requiring high-voltage responsivity and wafer-scale integration.
Answer: It is commonly used for depositing thin films in electronic and optical devices, including piezoelectric sensors, ferroelectric capacitors, and memory applications.
Answer: Target cracking due to thermal stress and stoichiometric control in thin films are common challenges. Using a compatible backing plate and fine-tuning deposition conditions can mitigate these issues.
Answer: Both are lead-based perovskite solid solutions, but PZT substitutes zirconium for titanium on the B-site to favor piezoelectric coupling for actuators, while lead calcium titanate substitutes calcium for lead on the A-site to lower permittivity and favour pyroelectric sensing applications.
Lead calcium titanate (Pb₁₋ₓCaₓTiO₃) is a perovskite solid solution in which Ca²⁺ partially substitutes for Pb²⁺ on the A-site while Ti⁴⁺ occupies the octahedral B-site. At x = 0.3, calcium substitution reduces the tetragonal distortion and Curie temperature of PbTiO₃ while tuning polarisation, dielectric permittivity, and pyroelectric response. RF magnetron sputtering from dense ceramic targets enables controlled Pb: Ca stoichiometry and uniform thin films on platinised silicon, sapphire, and MgO. After crystallisation annealing, these films retain the perovskite structure and pyroelectric behaviour, making them valuable for uncooled infrared detectors, thermal imaging arrays, and passive infrared sensors requiring high-voltage responsivity and wafer-scale integration.
Key Properties of Lead Calcium Titanate
Property
Value
Significance
Chemical formula
Pb0.7Ca0.3TiO3
Defines the A-site Pb: Ca ratio that sets the material’s Curie temperature, permittivity, and pyroelectric coefficient
CAS number
Not established
No CAS Registry Number is assigned to this variable-composition Pb-Ca solid solution; procurement and safety documentation reference the constituent oxides
Molar mass
~252.93 g/mol
Used to calculate deposition rates and target consumption per unit film mass
Density
~6.8 g/cm3 (estimated)
Lower than pure PbTiO3 due to calcium substitution; relevant to sputter yield and target erosion behaviour
Crystal structure
Perovskite, tetragonal to pseudocubic depending on Ca content
Reduced tetragonal distortion relative to PbTiO3 governs the material’s dielectric and pyroelectric response
Curie temperature
Reduced relative to PbTiO3’s ~490 C, decreasing with increasing Ca content
Sets the practical upper temperature limit for retaining pyroelectric activity in a fabricated device
Dielectric constant
Lower than PZT-family compositions at comparable frequency
A lower permittivity combined with a retained pyroelectric coefficient improves voltage-mode detector responsivity
Thermal conductivity
~3-5 W/m*K
Governs thermal isolation design in pyroelectric pixel and microbolometer architectures
Types & Grades of Lead Calcium Titanate
Lead Calcium Titanate targets are offered in standard catalogue sizes and grades, with custom purity, density, and geometry available for OEM and R&D deposition systems.
Grade / Form
Typical Purity
Key Features / Uses
Standard disc target
99.9%
General-purpose grade for thin film development and pyroelectric process qualification
High-purity grade
99.99%
Reduces trace-metal contamination for low-leakage, low-defect-density detector-grade films
Ultra-high-purity grade
99.999%
Research-grade stoichiometric control for minimising dielectric loss and dark current in sensor films
Bonded target
99.9% – 99.99%
Indium- or elastomer-bonded to a copper backing plate for improved heat dissipation during sustained RF sputtering
Monoblock target
99.9% – 99.99%
Unbonded disc or plate configuration for lower-power or pulsed-DC sputtering systems
Applications of Lead Calcium Titanate
Sputtered films of Lead Calcium Titanate support demanding roles across research and production applications where this material’s specific structural, electronic, or optical properties are the key requirement.
Industry
Application
Function
Infrared sensing
Uncooled pyroelectric infrared detector arrays
Converts incident IR-induced temperature change in the film into a measurable electrical charge signal
Defence and surveillance
Thermal imaging camera elements
Provides the pyroelectric sensing layer for uncooled thermal imaging optics
Industrial safety
Fire, flame, and gas detectors
Fast pyroelectric response to thermal transients triggers alarm and monitoring circuits.
Automotive electronics
Occupancy, motion, and gas sensing modules
Low-cost uncooled infrared sensing element for cabin and emissions monitoring systems
Consumer and building electronics
Passive infrared (PIR) motion sensors
Thin film pyroelectric element switches security and lighting control circuits on detected motion.
Technical Depth: in-house quality control with ICP-MS and XRF purity verification, density measurement, and full certificates of analysis on every target.
Global Logistics: reliable supply from single R&D-scale targets to production-line volumes, with established international shipping.
Responsive Support: direct access to materials engineers for grade, bonding, and geometry selection, and process-compatibility questions.
Take the Next Step
Infinita Materials fabricates Lead Calcium Titanate sputtering targets engineered to the purity, density, and geometry your deposition process requires. Whether the requirement is a standard catalogue target or a custom size, purity, or bonded assembly, our team can help match the right specification to your deposition system. Request a quote or speak with our technical team to discuss your target specification.
Other Related Product to Lead Calcium Titanate, Pb0.7Ca0.3TiO3
It is commonly used for depositing thin films in electronic and optical devices, including piezoelectric sensors, ferroelectric capacitors, and memory applications.
Target cracking due to thermal stress and stoichiometric control in thin films are common challenges. Using a compatible backing plate and fine-tuning deposition conditions can mitigate these issues.
Both are lead-based perovskite solid solutions, but PZT substitutes zirconium for titanium on the B-site to favor piezoelectric coupling for actuators, while lead calcium titanate substitutes calcium for lead on the A-site to lower permittivity and favour pyroelectric sensing applications.
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