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Indium Tin Oxide (In2O3/SnO2 90/10wt%) Evaporation Material, Powder, 99.99%, 18-73 nm
Product Type: Alloy Evaporation Material
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For material selection, deposition-source matching, pack-size confirmation or quotation support, contact our technical sales team.
INQUIRY: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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This powder is sensitive to moisture and atmospheric contamination, which can alter its evaporation behavior and film stoichiometry. Storage in a dry, inert atmosphere is required to maintain particle integrity and prevent agglomeration.
- Moisture Sensitivity: Exposure to ambient humidity may cause particle caking or surface hydration, compromising evaporation uniformity.
- Crucible Compatibility: Use only graphite, alumina, or boron nitride crucibles or e-beam hearths with compatible liners to avoid chemical reaction or contamination at high temperature.
- Melting Point Constraint: The 1,800 °C melting point requires evaporation source hardware capable of sustained high-temperature operation without degradation.
This procedure describes the safe loading and evaporation of ITO powder using e-beam or thermal evaporation. Proper source preparation and chamber conditions are critical to achieve consistent film composition.
Required Equipment: Graphite, Al2O3, or BN crucible or e-beam hearth with compatible liner, Vacuum deposition chamber with base pressure below 1e-5 Torr, Inert gas glovebox or dry nitrogen purge station
- Prepare Powder
Transfer the ITO powder from its sealed container to the crucible inside a dry inert atmosphere to prevent moisture adsorption. - Load Crucible
Fill the crucible or e-beam hearth to no more than two-thirds of its volume to allow for thermal expansion and outgassing. - Evacuate Chamber
Pump the deposition chamber to a base pressure below 1e-5 Torr to minimize residual gas incorporation into the film. - Preheat Source
Apply a gradual ramp of electron beam or thermal power to outgas the powder without causing sudden spitting or particle ejection. - Deposit Film
Increase power to achieve a stable evaporation rate between 0.5 and 2.0 Å/s while monitoring film thickness with a quartz crystal microbalance. - Cool and Vent
Allow the crucible to cool below 100 °C before venting the chamber to avoid oxidation of the remaining material.
What is the significance of the 18-73 nm particle size range for ITO powder in evaporation applications, and how does it influence film uniformity and stoichiometry?
The 18-73 nm particle size range is specified for the powder form to ensure controlled evaporation behavior. Finer nanoparticles (18 nm) offer higher surface area and can lead to more uniform film deposition, but may also increase the risk of agglomeration. The specified range (18-73 nm) allows for consistent source loading and evaporation rate control, which is critical for maintaining the desired 90/10 wt% In2O3/SnO2 stoichiometry in the deposited film. The product's 99.99% purity further ensures minimal contamination, preserving the electrical and optical properties of the ITO layer.
Which crucible or liner materials are recommended for the evaporation of this ITO powder, and are there specific constraints for e-beam versus thermal evaporation?
The product description specifies that the ITO powder can be used with Graphite, Al2O3, or BN crucibles, or an e-beam hearth with a compatible liner. The sheet hardware is specifically Graphite. For e-beam evaporation, a graphite liner is typically used to avoid contamination. For thermal evaporation, an Al2O3 or BN crucible is recommended. The melting point of 1,800 °C requires that the crucible material withstands high temperatures without reacting with the ITO. The evaporation method (e-beam or thermal) should be selected based on the required film properties and deposition rate, and must be confirmed by RFQ for the specific hardware configuration.
What pre-purchase checks are necessary to ensure this ITO powder is compatible with my existing evaporation system?
Before ordering, you must confirm the following: model (AF-IN2O3SNO29PWD-4N1873NM), purity (99.99%), form (Powder), particle size range (18-73 nm), pack size (25g, 100g, 500g, or 1kg), and deposition-source compatibility. The evaporation source hardware must match the recommended crucible or liner materials (Graphite, Al2O3, BN, or e-beam hearth with compatible liner, with sheet hardware of Graphite). The product supports both e-beam and thermal evaporation, but the exact method and hardware configuration should be reviewed via RFQ. Additionally, review the certificate, safety data sheet, shipment conditions, and export requirements to ensure the material meets your laboratory's handling and regulatory standards.
This Indium Tin Oxide (In2O3/SnO2 90/10wt%) evaporation material is supplied as a 99.99% pure powder with a particle size range of 18-73 nm, optimized for e-beam or thermal evaporation in vacuum thin-film deposition. The high melting point of 1,800°C and specified crucible compatibility (Graphite/Al2O3/BN) define clear infrastructure requirements for lab deployment.
Positive
- High purity and defined composition: The 99.99% purity and fixed 90/10wt% In2O3/SnO2 ratio ensure consistent film stoichiometry and reduce batch-to-batch variability in optical and electrical properties for transparent conductive oxide applications.
- Nanoscale particle size for evaporation: The 18-73 nm powder form facilitates uniform source loading and controlled evaporation rates in e-beam or thermal processes, supporting reproducible thin-film thickness and morphology.
Trade-offs
- High melting point requires robust hardware: With a melting point of 1,800°C, the material demands compatible crucible materials (Graphite, Al2O3, or BN) and high-temperature e-beam or thermal evaporation systems, limiting use to labs with appropriate deposition infrastructure.
- Powder form requires careful handling: The nanoscale powder is prone to airborne dispersion and moisture adsorption, necessitating controlled storage in inert or dry conditions and proper safety protocols during loading to avoid contamination or inhalation.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
