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Lithium (Li) Evaporation Material, Pieces, 99.99%, 1-10 mm
Product Type: Pure Metal 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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Lithium is highly reactive with moisture and oxygen, requiring strict dry inert atmosphere during all handling and storage. The material must be stored in a sealed ampoule under inert gas to prevent oxidation and degradation.
- Storage: Maintain in sealed ampoule under inert gas at ambient temperature in a dry environment.
- Handling: Use only in a glovebox with oxygen and moisture levels below 0.1 ppm to prevent immediate oxidation.
- Evaporation Source: Load into a tantalum, molybdenum, or tungsten boat designed for resistive heating under inert atmosphere.
- Degradation Risk: Exposure to ambient air causes rapid surface oxidation, compromising purity and evaporation behavior.
- Containment: Use non-sparking, inert tools for transfer and avoid direct skin contact due to corrosive reaction with moisture.
This procedure describes the safe transfer and evaporation of lithium pieces under inert conditions. Proper use of glovebox and inert gas is essential to prevent material degradation and safety hazards.
Required Equipment: Inert gas glovebox with <0.1 ppm O2 and H2O, Tantalum, molybdenum, or tungsten evaporation boat, Sealed ampoule cutter or non-sparking pliers
- Transfer ampoule to glovebox
Introduce the sealed ampoule containing lithium pieces into an inert gas glovebox through an antechamber. - Open ampoule under inert atmosphere
Open the ampoule using a non-sparking cutter or pliers inside the glovebox to avoid air exposure. - Load lithium into evaporation boat
Place the lithium pieces into a clean tantalum, molybdenum, or tungsten boat using inert tweezers. - Transfer boat to deposition chamber
Move the loaded boat from the glovebox to the thermal evaporation source while maintaining a sealed inert transfer container. - Evacuate and backfill chamber
Evacuate the deposition chamber to high vacuum, then backfill with dry inert gas to the desired process pressure. - Heat boat for evaporation
Apply a controlled current to the boat to resistively heat the lithium to its evaporation temperature. - Monitor deposition process
Monitor the deposition rate and film thickness using a quartz crystal microbalance or other in-situ sensor.
How does the Z-Ratio of 5.9 for lithium evaporation material affect quartz crystal microbalance (QCM) thickness monitoring accuracy?
A Z-Ratio of 5.9 is significantly higher than the typical value of 1.0 for many metals, indicating a large acoustic impedance mismatch between lithium and the quartz crystal sensor. This requires precise tooling factor calibration to avoid systematic film thickness errors during thermal evaporation. The low density (0.53 g/cm³) and low melting point (181°C) further influence the evaporation rate and deposition profile, necessitating careful process control to maintain repeatability.
What handling and deposition source configurations are required for thermally evaporating lithium pieces without contamination?
Lithium is highly reactive with oxygen and moisture, so it must be handled under strict dry inert conditions, typically in an argon-filled glovebox, and loaded into a sealed ampoule or a Ta/Mo/W boat. The source material is supplied as 1–10 mm pieces, which must be compatible with the selected evaporation hardware. The low melting point of 181°C also requires source materials that can resist chemical attack and maintain structural integrity at elevated temperatures.
What storage and safety precautions are necessary for 99.99% pure lithium evaporation pieces?
Lithium is a highly reactive alkali metal that must be stored under an inert atmosphere (e.g., argon) or immersed in mineral oil to prevent oxidation and moisture absorption. The 99.99% purity pieces (1–10 mm) should be kept in hermetically sealed containers within a glovebox equipped with moisture and oxygen sensors. Prior to use, a safety data sheet review and compatibility check with the deposition system's vacuum and heating elements are recommended to avoid contamination or hazardous reactions.
This lithium evaporation material (99.99% purity, pieces 1–10 mm) is designed for thermal/resistive evaporation under strict dry inert handling. Its low melting point (181°C) and low density (0.53 g/cm³) require careful source matching (sealed ampoule or Ta/Mo/W boat) and process control to prevent contamination or oxidation.
Positive
- High purity 99.99%: The 99.99% purity specification ensures minimal contamination for consistent thin-film deposition in research-grade vacuum processes.
- Defined piece size 1–10 mm: The specified piece size range facilitates controlled loading into evaporation sources and supports reproducible deposition rates.
Trade-offs
- Strict dry inert handling required: Lithium is highly reactive with moisture and air; the material must be handled under strict dry inert conditions to avoid oxidation or hydration, requiring appropriate glovebox or sealed ampoule infrastructure.
- Evaporation source compatibility critical: The product is specified for use with sealed ampoule or Ta/Mo/W boats in inert setups; improper source selection may lead to contamination or poor film quality, necessitating careful hardware matching before use.
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).
