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The Evaporator 2024 December

Leading the Metallizing and Thin Film Coating Industry Since 1963

The Evaporator

Unsurpassed Product Quality, Selection, Technical Experience and Customer Care

The Lead

Image: Tobias Abheizer

(Image: Tobias Abheizer)

New vapor deposition tech could accelerate commercialization of perovskite solar cells

 

pv magazine | Researchers in the United States developed a novel vapor deposition method for all-inorganic perovskite absorbers using continuous flash sublimation (CFS). They described the new technique as a non-batch process that solves two problems associated with the use of established vapor processing in perovskite material manufacturing.

 

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  • Technical Tip

Aluminum Evaporation

Aluminum is a very popular material for evaporation. It typically does not have problems such as spitting. However, there are a few common problems that occur when evaporating this material.

  1. Aluminum wets to most surfaces and does not stay in the evaporation area. This is known as migration.

  2. Molten aluminum is very corrosive and will cause the boat or box to break during the evaporation process.

Tungsten is the material of choice for being most resilient to this corrosion. Small amounts of aluminum can be evaporated from filaments and basket sources, while larger amounts can be evaporated from sources like tungsten boats and boxes.

 

For deposition from crucible heaters, we highly recommend using cool lip crucibles. These are offered in ½” and 1” diameters to fit many of our crucible heaters.

Crucible heater with CH-5 and C5-BNC-CL

This style of crucible controls aluminum wetting and minimizes migration due to the cooler area around the top of the crucible.

  • Upcoming Events

🎄Christmas: We will be closed December 23rd – January 3rd, 2025

Northern California Chapter American Vacuum Society (NCCAVS)

Fremont, CA | February 27, 2025

Fremont Marriott Silicon Valley, 46100 Landing Pkwy

Website

American Physical Society Summit

Anaheim, California | March 16-21, 2025

Anaheim Convention Center, Anaheim Marriott, and Hilton Anaheim

Booth: 655 | Website

TechCon – Society of Vacuum Coaters

Nashville, Tennessee | May 20-21, 2025

Gaylord Opryland Resort & Convention Center

Booth: 919 | Website

For More Information

Please give us a call for further questions about The Evaporator.

Phone: (562) 426-7049

Email: info@rdmathis.com

Website: rdmathis.com

Industry News

Image: CDL DEFINETU Graz
Electron beam deposition creates complex 3D nanostructures

| Graz University of Technology |

(Image: CDL DEFINETU Graz)

 

Austria-based scientists from TU Graz have used a 3D nano printing technology – Focused Electron Beam Induced Deposition – to tune plasmonic activity in 3D nanostructures, paving the way to the fabrication of complex nanostructures for optical tweezing and other applications.

 

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Image: Nathi Magubane
Soft support can make unexpectedly stable glass

| University of Pennsylvania |

(Image: Nathi Magubane)

 

In 2007, researchers found that stable glasses can also be produced by condensing the material from the vapor phase, using a process called physical vapor deposition. Vapor deposition allows molecules that have just arrived at the surface to pack better, producing better-aged glasses.

 

Now, a team of researchers led by Zahra Fakhraai of the University of Pennsylvania’s School of Arts & Sciences, in collaboration with scientists at the Brookhaven National Laboratory, have discovered a method to further expedite this aging process, redefining the fundamental principles…

 

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The right evaporation source can make your thin film coating process a success. Since 1963, we have been fabricating and recommending evaporation sources for our customers in various cutting-edge industries.

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