Lanthanum strontium chromate (La1-xSrxCrO3) sputtering targets, supplied by Infinita Materials, deliver a strontium-doped lanthanum chromite perovskite engineered for thin-film deposition in fuel cell and high-temperature electronic applications. The material’s rare combination of stable electronic conductivity across both oxidising and reducing atmospheres makes it a standard choice for solid oxide fuel cell interconnect and cathode contact layers. Targets are produced as cold-pressed, sintered discs at purities from 99% to 99.999%, with Sr doping level and dimensions customizable to application requirements.
Lanthanum strontium chromate (LSC), La₁₋ₓSrₓCrO₃, is an orthorhombically distorted perovskite derived from LaCrO₃, with Sr²⁺ substitution for La³⁺ generating mixed Cr³⁺/Cr⁴⁺ valence states and p-type conductivity. Compositions around x = 0.2 offer excellent structural, chemical, and thermal stability, retaining conductivity across oxidising and reducing environments at temperatures exceeding 1000 °C. Sputtering from dense ceramic LSC targets provides precise composition, thickness, and uniformity for demanding high-temperature applications. Sputtered LSC films are particularly valuable as conductive interconnects and contact layers in solid oxide fuel cells, as electrodes for high-temperature gas sensors, and as conducting layers in perovskite oxide heterostructures requiring thermal compatibility and resistance to harsh atmospheres.
Answer: Lanthanum Strontium Chromate is a perovskite oxide material commonly used in thin film deposition via sputtering, especially in electronic, photonic, and energy applications due to its high conductivity and stability.
Answer: Due to its high ionic conductivity and structural versatility is used mainly in fabricating oxide-based thin films for sensors, fuel cells, and solid-state devices and as a catalyst in various applications.
Answer: La₁₋ₓSrₓCrO₃ offers high thermal stability, electrical conductivity, and a wide range of compositions that can be tailored by adjusting the Sr content, making it ideal for high-performance thin film deposition.
Answer: The Sr content (x) influences the material's electronic properties, including conductivity, crystal structure, and stability, allowing for customization based on the specific requirements of the fabricated device.
Answer: Challenges include maintaining consistent stoichiometry during deposition, potential volatility of chromium in high vacuum, and the need for precise control of sputtering parameters to achieve desired film qualities.
Lanthanum strontium chromate (LSC), La₁₋ₓSrₓCrO₃, is an orthorhombically distorted perovskite derived from LaCrO₃, with Sr²⁺ substitution for La³⁺ generating mixed Cr³⁺/Cr⁴⁺ valence states and p-type conductivity. Compositions around x = 0.2 offer excellent structural, chemical, and thermal stability, retaining conductivity across oxidising and reducing environments at temperatures exceeding 1000 °C. Sputtering from dense ceramic LSC targets provides precise composition, thickness, and uniformity for demanding high-temperature applications. Sputtered LSC films are particularly valuable as conductive interconnects and contact layers in solid oxide fuel cells, as electrodes for high-temperature gas sensors, and as conducting layers in perovskite oxide heterostructures requiring thermal compatibility and resistance to harsh atmospheres.
Key Properties of Lanthanum Strontium Chromate
Property
Value
Significance
Chemical formula
La1-xSrxCrO3 (x typically 0.1-0.3; x=0.2 most common)
Sr substitution level sets the Cr3+/Cr4+ ratio that governs conductivity and lattice expansion
Crystal structure
Orthorhombically distorted perovskite (Pbnm), trending pseudo-cubic at high temperature.
Perovskite framework supports charge-compensated conduction without structural breakdown.
Purity
99% – 99.999% (2N-5N), custom on request
Higher purity limits secondary-phase formation and grain-boundary scattering in sputtered films
Molar mass
~228.6 g/mol for La0.8Sr0.2CrO3 (varies with x)
Used for stoichiometry checks and deposition-rate calculations at a given composition
Density (theoretical)
~6.7 g/cm3
Sets sputtering yield and target service life for a given target volume
Electrical conductivity
Approximately 20-40 S/cm at 800-1000 C (p-type, composition-dependent)
Enables use as a conductive interconnect and contact layer at SOFC operating temperature
Stable in both oxidising and reducing atmospheres up to approximately 1000 C
Permits use as a dual-atmosphere interconnect material, unlike most single-atmosphere perovskite chromites.
Types & Grades of Lanthanum Strontium Chromate
Lanthanum Strontium Chromate 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 sputtering target (disc)
99.9%
Cold-pressed and sintered discs, elastomer- or indium-bonded, for RF/DC thin-film deposition
High-purity target
99.99% – 99.999%
Reduced trace-metal content for research-grade films and sensitive electronic device layers
Research-grade powder
99% – 99.9%
Fine perovskite powder for tape casting, screen-printing inks, and lab-scale synthesis
Custom-doped composition
99.9%+ (x = 0.1 – 0.3 typical)
Sr content tailored to balance conductivity, thermal expansion match, and sinterability
Bonded target assembly
99.9%+
Pre-bonded to copper or molybdenum backing plates for direct mounting in production sputtering systems
Applications of Lanthanum Strontium Chromate
Sputtered films of Lanthanum Strontium Chromate 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
Fuel cells/energy
SOFC interconnect coatings
Provides an electronically conductive, gas-tight layer between the metallic interconnect and cathode
Fuel cells/energy
SOFC cathode contact layers
Lowers contact resistance between cathode and interconnect while withstanding an oxidising atmosphere
Electronics
Thin-film conductive oxide layers
Deposits a stable p-type conducting oxide film for sensor and electrode structures
Sensors
High-temperature gas sensors
Exploits conductivity stability across oxidising and reducing conditions for durable sensing electrodes
Semiconductor/research
Perovskite oxide heterostructures
Serves as a lattice- and thermally-compatible electrode or buffer layer in oxide thin-film research
Industrial coatings
Protective conductive ceramic coatings
Supplies an oxidation- and reduction-resistant conductive coating for high-temperature components
Why Partner with Infinita Materials?
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 Lanthanum Strontium Chromate 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 Lanthanum Strontium Chromate
Lanthanum Strontium Chromate is a perovskite oxide material commonly used in thin film deposition via sputtering, especially in electronic, photonic, and energy applications due to its high conductivity and stability.
Due to its high ionic conductivity and structural versatility is used mainly in fabricating oxide-based thin films for sensors, fuel cells, and solid-state devices and as a catalyst in various applications.
La₁₋ₓSrₓCrO₃ offers high thermal stability, electrical conductivity, and a wide range of compositions that can be tailored by adjusting the Sr content, making it ideal for high-performance thin film deposition.
The Sr content (x) influences the material's electronic properties, including conductivity, crystal structure, and stability, allowing for customization based on the specific requirements of the fabricated device.
Challenges include maintaining consistent stoichiometry during deposition, potential volatility of chromium in high vacuum, and the need for precise control of sputtering parameters to achieve desired film qualities.
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