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Thermal Evaporation 

Duke University - SMIF
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Nanotechnology: A Maker's Course
Thermal Evaporation Basics
Link to the full Coursera course: www.coursera.org/learn/nanote...
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The Shared Materials Instrumentation Facility (SMIF) is the Pratt School of Engineering’s core facility that enables materials, devices, and integrated systems research at Duke University in a variety of fields that include nanotechnology, biomaterials and biomedical engineering, information sciences, optoelectronics, sensor technology, and renewable energy. SMIF is housed in the Fitzpatrick Center for Interdisciplinary Engineering, Medicine and Applied Sciences (FCIEMAS). The facility consists of 7,000 square feet of clean room fabrication space, and nearly 3,000 square feet of specialized laboratory space for characterization and imaging equipment. SMIF is part of the Research Triangle Nanotechnology Network (RTNN) in partnership with similar facilities at North Carolina State University and the University of North Carolina at Chapel Hill. The RTNN is one of 16 organizations nationwide that comprise the National Science Foundation sponsored National Nanotechnology Coordinated Infrastructure (NNCI) program.
SMIF is open to all trained students, staff, faculty, and researchers and is used for both research and educational purposes. SMIF has nearly 700 users, of which 2/3 come from Duke University and 1/3 come from external academic institutions or industry. SMIF staff trains students and researchers to use the lab equipment and instruments themselves, and provides guidance and support in developing processes and methodologies that utilize these capabilities. Alternatively, SMIF staff can run samples for researchers as a service. SMIF also coordinates various educational and outreach activities.

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7 дек 2019

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Комментарии : 41   
@SumitYadav-mx8bp
@SumitYadav-mx8bp 2 года назад
I really like all of your videos they were very helpful in understanding PVD processes . Thanks for making nanotechnology understandable
@MuhammadSaad-xp7gp
@MuhammadSaad-xp7gp 3 года назад
Very Informative video of just few minutes and including practical demonstration too.
@mubasharahmed9219
@mubasharahmed9219 Год назад
Best explanation on social media so far.
@nathananya
@nathananya 3 года назад
Amazing explanation, thank you so much ma'am,
@getsusa1674
@getsusa1674 3 года назад
Thank u, it's very easy for understanding.
@SaadANawaz
@SaadANawaz 3 года назад
what a beautiful explanation
@beastyboy...4459
@beastyboy...4459 3 года назад
Thank you so much ma'am 😊😊😊
@fatmanayyab7814
@fatmanayyab7814 4 года назад
highly appreciated👍👍👍👍👍👍👍
@phanichandrab3721
@phanichandrab3721 11 месяцев назад
Great content. Keep it up!
@shubhendragupta5014
@shubhendragupta5014 2 года назад
Thank you Professor and Aditi.
@vickywen4798
@vickywen4798 Год назад
Good lecture,here we supply vacuum evaporation material and sources
@srizam
@srizam 4 года назад
Thanks Prof Dr Nan Jokerst, very informative video. It help me a lots.
@dukeuniversity-smif2466
@dukeuniversity-smif2466 3 года назад
Glad it was helpful!
@pc475
@pc475 Год назад
Excellent 👍
@darkknight3546
@darkknight3546 Год назад
Superb explanation
@deepakkotnala1658
@deepakkotnala1658 4 года назад
Seriously wow... please make complete playlist on nanotechnology..... thank you Nd all the best..Hope every university can teach and demonstrate like you
@dukeuniversity-smif2466
@dukeuniversity-smif2466 3 года назад
This video is just part of a full Coursera course on nanotechnology. Check out the link that is mentioned at the beginning of this video or search for the Duke Nanotechnology course on Coursera.
@deepakkotnala1658
@deepakkotnala1658 3 года назад
@@dukeuniversity-smif2466 okay thank you
@NvTwist
@NvTwist 3 года назад
Same here, I took a trip down the rabbit hole and learned quite a bit.
@kkd1703
@kkd1703 3 года назад
it is super easy to understand thermal evaporation. thank you so much.
@dukeuniversity-smif2466
@dukeuniversity-smif2466 3 года назад
Glad it helped!
@yasinylmaz5uck
@yasinylmaz5uck 3 года назад
Thank you for lessons!
@dukeuniversity-smif2466
@dukeuniversity-smif2466 3 года назад
Our pleasure! Glad you liked them!
@omaimaf
@omaimaf Год назад
Thank you that was really useful.
@dukeuniversity-smif2466
@dukeuniversity-smif2466 Год назад
You're welcome!
@georgeliu7575
@georgeliu7575 Год назад
that is professional!
@DeepakKumar-pm4ur
@DeepakKumar-pm4ur Год назад
Beautifully and lucid explained 🎉
@dukeuniversity-smif2466
@dukeuniversity-smif2466 Год назад
Thanks a lot 😊
@jamesdriscoll_tmp1515
@jamesdriscoll_tmp1515 3 года назад
Very interesting presentation. The elegant gestures brought attention to the subject, and were a welcome addition. How do you calibrate the deposition thickness sensor? How do you determine the film thickness? Is there a separate meteorology session that covers it? I assume there may be a process to recover the gold from the chamber walls? The target showed sign of multiple deposition cycles. Even nanometers add up to $$ eventually, especially for the high purity source material.
@dukeuniversity-smif2466
@dukeuniversity-smif2466 3 года назад
Regarding film thickness: The thickness can be verified with an independent measurement, for example using a profilometer (we do not currently have a video describing profilometry). The sensor electronics have a ‘tooling factor’ that is adjusted to account for any discrepancies between the thickness displayed by the sensor and the actual measured thickness. For metal recovery: We install removable metal panels called “shields.” The shields are coated with textured aluminum film (deposited via flame spray technique by a commercial supplier). All the materials we deposit build up on the shields. The textured aluminum coating prevents the materials from flaking / peeling. Every few months we replace the shields. The old shields are sent to a commercial vendor, where the aluminum and all deposited materials are chemically removed and collected for recycling. The used shields are then cleaned and re-coated with aluminum and sent back to us for re-use
@andrehildebrandt2465
@andrehildebrandt2465 2 года назад
Hello, what size are the nanoparticles of molten gold emitted when evaporating due to high temperature?
@manicomedy978
@manicomedy978 2 года назад
Why there is no coating over sample holder, it is also there
@RuwanWij
@RuwanWij Год назад
Does the evaporated metal deposit everywhere in the chamber? Or is it targeted somehow? If so, how?
@nurmohamednur3271
@nurmohamednur3271 3 года назад
Taks
@nurmohamednur3271
@nurmohamednur3271 3 года назад
Tank
@jamesdriscoll_tmp1515
@jamesdriscoll_tmp1515 3 года назад
You mentioned phase changes, solid to liquid, liquid to gas. Is sublimation also in that list? Can low pressure regimes exclude liquid phase?
@dukeuniversity-smif2466
@dukeuniversity-smif2466 3 года назад
Yes, some metals will undergo sublimation (i.e. solid to gas transition), for example chromium. Electron-beam evaporation (or “E-Beam Evaporation) is better suited to evaporate such materials (see our video on e-bam evaporation: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-xIU1DDbDEDQ.html ).
@gauravkumarsingh2066
@gauravkumarsingh2066 2 года назад
Aditi accent is not changed 😍
@NvTwist
@NvTwist 3 года назад
First I wanna say thank you for making these videos. I have no experience with this topic but I have always had a question & this looks like the time to learn something. Question: Why are all the internal surfaces of the vacuum chamber being coated with the deposition material, In this case gold?
@dukeuniversity-smif2466
@dukeuniversity-smif2466 3 года назад
Imagine if you boiled water inside a small box; the water converts to steam and then condenses on all interior surfaces of the box. When the gold evaporates, it coats all surfaces inside the chamber in a similar fashion
@NvTwist
@NvTwist 3 года назад
@@dukeuniversity-smif2466 my apologies for not proof reading before hitting send…. It was supposed to aren’t or why doesn’t the entire inner surface get coated with the evaporated material? Is it due to the lack of air inside the chamber or idk I’m curious thou.
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