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Antimony (III) Telluride

    • Product Name Antimony (III) Telluride
    • Alias Antimony Telluride
    • Einecs 234-527-7
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
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    Specifications

    HS Code

    948950

    Chemical Name Antimony (III) Telluride
    Chemical Formula Sb2Te3
    Molar Mass 626.32 g/mol
    Appearance Grayish-black crystalline solid
    Melting Point 620 °C
    Density 6.5 g/cm³
    Band Gap 0.21 eV
    Crystal Structure Rhombohedral
    Cas Number 1327-50-0
    Solubility In Water Insoluble
    Thermal Conductivity 2 W/mK
    Main Use Thermoelectric material

    As an accredited Antimony (III) Telluride factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Antimony (III) Telluride, 25g, is packaged in a sealed, amber glass bottle with tamper-evident cap and hazard labeling.
    Shipping **Shipping Description:** Antimony (III) Telluride (Sb2Te3) is shipped as a stable, non-flammable solid, typically in sealed, labeled containers to prevent moisture exposure and contamination. Handle with care, using appropriate personal protective equipment. Complies with standard regulations for non-hazardous, inorganic materials. Ensure secure packaging to avoid breakage during transit.
    Storage Antimony (III) telluride should be stored in a tightly sealed container, away from moisture and strong acids, in a cool, dry, and well-ventilated area. Protect it from physical damage and sources of ignition. Ensure labeling is clear and storage complies with local regulations for hazardous materials. Keep away from incompatible substances to prevent hazardous reactions.
    Application of Antimony (III) Telluride

    Applications of Antimony (III) Telluride in Industrial Manufacturing

    As a direct manufacturer specializing in high-purity Antimony (III) Telluride, we supply this essential compound to customers across multiple advanced industrial sectors. Our material is integrated into downstream manufacturing lines where reliable thermoelectric properties and stable performance are key criteria for finished product quality. Below we outline the primary industrial applications, including compliance, formulation advice, process integration points, and typical end products.

    1. Thermoelectric Modules for Power Generation and Cooling

    Antimony (III) Telluride forms the backbone of thermoelectric legs in commercial and industrial modules used to convert heat differentials into electricity or provide solid-state cooling. Leading module manufacturers apply it in n-type elements due to its high figure of merit and long-term stability under temperature cycling. Raw material composition, purity, and granule size directly impact device efficiency and reliability. Integration requires precise material control at every stage from powder synthesis through sintering and module assembly, all in accordance with tightly defined performance and environmental criteria.

    Industry compliance standards

    • IEC 60738-1 (Thermoelectric devices standards; safety and performance requirements)
    • RoHS 2011/65/EU (Restriction of Hazardous Substances for consumer devices)
    • ISO 9001:2015 (Quality Management Systems for process controls)
    • REACH Regulation (EC) No 1907/2006 (Substance registration and handling)

    Typical usage ratio

    • Composes 35–55% (w/w) of n-type material matrix, depending on design; formulation adjusted based on target ZT value, desired service temperature, and expected device service life.

    Downstream process integration

    • Used during alloying step, after initial oxide removal, blended with elemental Antimony and Tellurium, then hot pressed and cut into pellets or legs for assembly into thermoelectric arrays.

    Final product types

    • Thermoelectric generators (TEGs) for industrial waste heat recovery
    • Peltier coolers for laboratory and electronics thermal management
    • Solid-state heat pumps for HVAC and freezer systems
    • Wearable and portable power harvesting devices

    2. Infrared Detector and Sensor Manufacturing

    Precision-grown single crystals and polycrystalline films of Antimony (III) Telluride are essential in the production of infrared sensor chips for spectroscopy, gas analysis, and flame detection systems. The material’s tunable band gap allows for consistent mid-IR detection with low electrical noise, making it preferred by global detector OEMs for both cooled and uncooled photodetector platforms. Integration at wafer fabrication level requires compliance with semiconductor-grade purity and strict trace element controls.

    Industry compliance standards

    • JEDEC JESD22 (Semiconductor device reliability test procedures)
    • ISO 14644 (Cleanroom class standard for wafer fabrication)
    • RoHS and REACH for electronic components
    • IPC-A-610 (Acceptability of Electronic Assemblies)

    Typical usage ratio

    • Used at 70–99% as the primary semiconductor substrate in detector elements; precise stoichiometry essential for spectral targeting, minor doping employed depending on sensitivity requirements.

    Downstream process integration

    • Material synthesized by zone melting or Bridgman–Stockbarger methods, followed by slicing, polishing, and photolithography for integration into sensor arrays and MEMS chips.

    Final product types

    • Infrared imaging chips for spectroscopy analyzers
    • NDIR (non-dispersive infrared) gas sensors
    • Flame and combustion detectors for industrial safety
    • Environmental monitoring photodetectors

    3. Thin-Film Thermoelectric Coatings for Microelectronics

    Antimony (III) Telluride is deposited as a thin film in micro-scale thermoelectric generators (μTEGs) embedded in integrated circuits and sensor platforms. Sputtering and pulsed laser deposition produce ultra-thin, conformal coatings on silicon or flexible substrates, enabling on-chip energy harvesting and thermal sensing in IoT and microcontroller packages. Rigorous composition and surface morphology control optimize electrical conductivity and connection with metallic contacts.

    Industry compliance standards

    • IPC-6012 (Qualification and Performance for Rigid Printed Boards)
    • SEMATECH Requirements for thin film uniformity and microcontamination
    • RoHS for microelectronic devices
    • IEC 62321 (Determination of levels of certain substances in electrotechnical products)

    Typical usage ratio

    • Thin films typically range from 100 nm to 10 μm, with ≈60–85 wt% loading in the active thermoelectric layer, adjusted according to chip design, output requirements, and integration level.

    Downstream process integration

    • Material enters at thin-film deposition stage, used in physical vapor deposition (PVD), sputtering or molecular beam epitaxy directly onto device substrates before photolithographic patterning.

    Final product types

    • Micro-thermoelectric chips for IoT sensors
    • On-chip heat sensors for microcontrollers
    • Wearable health-monitoring electronics
    • Energy-scavenging micro-devices

    4. Thermoelectric Cooling for Optical Fiber and Laser Components

    Manufacturers of package-cooled optical and laser modules rely on Antimony (III) Telluride-based pellets for integrated thermoelectric cooling of diode lasers, fiber Bragg gratings, and precision photonics. The material’s stable cooling performance over thousands of cycles prevents wavelength drift and signal degradation in telecom, medical and industrial laser assemblies. Purity, crystalline morphology, and absence of trace metal contaminants are mandatory for direct integration into hermetically sealed assemblies.

    Industry compliance standards

    • Telcordia GR-468-CORE (Reliability qualification for optoelectronic devices)
    • IEC 60825 (Laser product safety)
    • ISO 14001 (Environmental management for equipment manufacturing)
    • RoHS & REACH for optical devices

    Typical usage ratio

    • Constitutes 45–65% of thermoelectric element mass in cooled-module assemblies; pellet geometry and doping ratio tailored to wavelength stabilization needs and package footprint.

    Downstream process integration

    • Material melted and pressed into custom-shaped pellets, mounted into Peltier arrays at subassembly stage, followed by full module hermetic sealing and electrical interfacing.

    Final product types

    • Temperature-stabilized diode lasers for telecom
    • Active-cooled fiber optic amplifiers
    • Wavelength-locked laser modules for medical diagnostics
    • Precision photonic sensors with integrated thermal control
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    Certification & Compliance
    More Introduction

    Antimony (III) Telluride: Commitment to Quality from Our Facility

    Our Experience with Antimony (III) Telluride Production

    As a chemical manufacturer with decades behind our furnace doors, Antimony (III) Telluride (Sb2Te3) has been in our lineup since it started making waves in the thermoelectric and optoelectronic industries. We recognize its value for research labs, semiconductor producers, and developers of energy-harvesting devices. Every batch from our production lines carries the care that comes from real experience—the kind of expertise that shows up not just in advertised specifications, but in consistent performance during uncommon application stress-tests or scale-up challenges.

    Material Model and Specifications: Precise, Not Inflated

    We provide Antimony (III) Telluride with typical purity levels of 99.99% and above, measured against recognized international benchmarks such as ICP-MS and GDMS. Particle size distribution varies by production run, and we pay close attention to crystalline quality for those serving the higher-end electronics and quantum device sectors. Our ingots, powders, and pressed pieces all meet X-ray diffraction controls for phase uniformity and purity. Outliers in batch homogeneity get isolated and recycled—saving everyone headaches down the line.

    Customers sometimes request customized morphology or tailored particle sizes, and we can shift our melting and cooling cycles to support those needs. We avoid introducing unintended elements, keeping a close lid on iron or other heavy metals through tight control of raw inputs and refining steps.

    What Antimony (III) Telluride Really Delivers

    Antimony (III) Telluride offers distinct advantages for advanced device manufacturing. Materials science researchers found that this compound’s layered crystal structure promotes high efficiency when targeting thermoelectric power generation. The presence of antimony and tellurium together allows for direct conversion of temperature differences into voltage, and precision in stoichiometry influences core performance.

    Our customers value the consistently high Seebeck coefficient and low thermal conductivity, and our process maintains phase integrity. In ultra-thin film applications, we’ve verified that our Sb2Te3 delivers reliable n-type or p-type characteristics, depending on downstream doping and treatment conditions. Semiconductor customers rely on predictable batch-to-batch results, not just nameplate numbers.

    Applications That Benefit Directly

    Thermoelectric modules form the backbone of most commercial demand. Device engineers need materials that hang together at interfaces and don’t degrade after multiple thermal cycles. We test our product on-site using relevant stress protocols: thermal cycling, electrical puncture, and high-temperature exposure. Analysis of used modules after prolonged service gives us direct feedback on product behavior—not just a theoretical picture.

    Other users—particularly academic labs focused on topological insulators—turn to our Sb2Te3 for its well-documented band structure. Producing uniform films and crystals for angle-resolved photoemission studies requires careful control of defect concentrations. We have worked with groups needing ultra-pure, contamination-free batches for such sensitive experiments, often fine-tuning our input material streams and furnace cycles to achieve the exact outcome.

    Comparing to Other Chalcogenides and Alloys

    People often ask us how Antimony (III) Telluride stands apart from other common chalcogenides like Bismuth Telluride (Bi2Te3) or Tin Telluride (SnTe). Sb2Te3 shares a similar layered crystal structure with Bi2Te3, which also allows strong performance in thermoelectric devices, but differences get very clear once you start scaling beyond the lab.

    Bismuth Telluride can sometimes edge out Antimony (III) Telluride in cold-side modules, but Sb2Te3 proves more stable in certain high-temperature segments. We’ve seen engineers choose Sb2Te3 for temperature sensors, power generators where operational windows drift near or above 250°C, and quantum device applications where electronic band structure matters more than maximum ZT value. In short, this compound delivers a sweet spot for researchers and manufacturers chasing reliable thermal and electrical properties without sacrificing longevity under real-use conditions.

    Comparing with Tin Telluride or Lead Telluride, safety and sustainability enter the conversation. We exclude materials with toxic heavy metals wherever possible, and that rules out some lead-based solutions for customers with strict compliance rules. Antimony (III) Telluride presents lower hazard profiles from a regulatory and practical workplace angle, which simplifies logistics, waste handling, and worker exposure control. We back up these claims with recent toxicological assessments and environmental monitoring data from our operations.

    Addressing Supply Chain, Quality, and End-Use Challenges

    Raw material sourcing dictates more than price: purity and contamination remain our top priorities. Antimony and tellurium ores vary by region and extraction process, introducing batch-to-batch variability for manufacturers who do not police their supply chain. Since tellurium can carry copper and silver traces, and antimony sources are prone to arsenic inclusion, we commit to full-spectrum analysis before each batch hits the furnace. Over years of procurement, we’ve built relationships with upstream processors who match our standards.

    Quality slips and out-of-spec batches can halt downstream product lines. To avoid this, our QC team applies not just the end-of-line checks, but real-time process analytics during synthesis. We correlate XRD, EMPA, and Hall effect measurements with customer return rate data. If there’s a drop in performance at a customer site, we investigate root causes, traceable to exact production lots, and apply feedback to process parameters.

    Long lead times have become a pressure point in the global supply chain, especially for tellurium, which is more rare than gold on an abundance scale and almost exclusively mined as a byproduct. We hedge by securing annual contracts and maintaining inventory buffers, investing in storage technology that prevents oxidation or phase decay during warehousing. Buyers see that commitment in short fulfillment windows and dependable on-time delivery, which keeps their own production schedules on target.

    Regulatory and Safety Considerations

    We meet all regulatory thresholds for chemical handling, export, and product labeling with documented transparency. Local authorities may view antimony compounds with caution, especially for dust or powder forms, so our operation includes full air filtration and containment strategies during material transfer and packaging.

    We provide on-request data for toxicology, workplace exposure controls, and environmental impact, rooted in observations from our occupational health programs. Our safety teams train daily on targeted response protocols because even proven materials like Sb2Te3 should not cause downtime or injuries.

    Product Evolution and the Lessons We’ve Learned

    In the early days, most demand for Antimony (III) Telluride came from small research groups and custom sensor developers. As thermoelectric modules moved into wastewater heat recovery, aerospace, and automotive waste heat reclamation, order scales multiplied. Challenges have included scaling our synthesis reactors, controlling microstructure at larger batch sizes, and making sure that product purity did not drop as tonnage passed through.

    One lesson after scaling: defects that escape lab-scale lots have a way of showing up in thousand-unit production runs. We tuned our refining, adjusted ampoule shapes, and implemented in-line electron microscopy checks to spot problems before shipping. Process improvements stem from field feedback—sometimes a single failed module in a shipped assembly sends us hunting for obscure phase inclusions or doping anomalies in our feedstocks.

    Every year brings new electronic and photonic applications, and manufacturers’ requirements shift quickly. This has driven us to stay modular in both equipment and process control, letting us quickly shift output quality if a topological insulator research group needs particularly pure crystalline slabs, or an OEM wants micronized powder for screen-printing.

    Transparency and Supporting End Users

    Our work doesn’t stop at batch delivery. We set up ongoing dialogues with users who need technical guidance or troubleshooting help, freely sharing test data, phase diagrams, and long-term performance results as applications progress from pilot stages through production. We are open about lot histories, and provide full batch analytics on request so that every customer can judge if a specific shipment fits their project’s parameters.

    As the field matures and reporting from materials scientists expands, we feed this learning back into our methods. Whether feedback comes from a startup experimenting with printable thermoelectric textile coatings, or from a government research facility characterizing Sb2Te3 nanostructures for quantum computing, our production team tracks issues and adapts quickly. It is not unusual for us to hold direct conversations between our process engineers and customer lab investigators to solve tough problems involving surface passivation or grindability without risking performance.

    Why We Recommend Our Sb2Te3 Over Others

    Volume, reliability, and honesty form the foundation of our product advantage. Anyone can produce a standard chalcogenide in gram lots under controlled laboratory conditions. Scaling to kilogram or ton-scale production without purity slips, microinclusion risks, or cost spikes takes long-term discipline in process and supplier management.

    We are one of the few facilities operating closed-system purification with repeatable yields for Sb2Te3, which shows up in customer QC audits and independent lab retesting. Our teams welcome third-party inspection and work closely with clients needing mission-critical, high-purity thermoelectric materials. The market rewards cutting shortcuts only briefly—fields like automotive, aerospace, or critical sensor hardware expose any weak link immediately.

    Beyond the fundamentals, our feedback channels mean that modifications—like doping with tin, or creating composites with selenium or bismuth—can be arranged for high-volume contracts or special trials. Every year, the requests get more specialized, and we have grown our knowledge base to support this evolution.

    Outlook and Ongoing Dialogue with the Marketplace

    Antimony (III) Telluride stands at a cross-section of tradition and innovation. Established thermoelectric device makers rely on it, but new fields like quantum computing and topological photonics are pushing performance boundaries. The shifting landscape keeps us close to suppliers, closer still to our clients, and always ready to change methods to meet new purity, morphology, or regulatory demands.

    No batch leaves our site without full historical traceability, chemical analysis, and direct inspection. The stakes are too high to risk loose ends—every research success, every manufacturing breakthrough, depends on reliable starting material. When you use our Sb2Te3, you can trust it reflects the pride and expertise of manufacturers who engage at every level of production and stand behind each shipment.

    We are always glad to discuss specific use cases, fine-tune a run for new specifications, or talk through complex regulatory or sourcing questions. Our team values substance over empty marketing. If an application exposes an improvement opportunity, we commit to learning and adapting—never settling for minimum requirements.

    Supporting Research, Manufacturing, and Emerging Technologies

    Whether enabling next-generation electronics, providing durable solutions for industrial sensors, or forming the backbone of successful thermoelectric generators, Antimony (III) Telluride deserves the investment, expertise, and focus that only a committed manufacturer can provide. We work hard to ensure each shipment matches—and exceeds—the expectations of those who put our materials to the test every day.

    If you need to discuss the fit between Sb2Te3 and your project, or want to dive into end-to-end quality assurance protocols, we bring both industry experience and custom support to every client relationship. The future belongs to those who work transparently and think one process ahead.