November 2020 - BNC-all - ecn.purdue.edu

BNC E-news: November 9th, 2020
by Turner, Jaime J 09 Nov '20

09 Nov '20

[cid:image006.jpg@01D685C3.FA345960] Responding to COVID-19: Research Operations at Birck https://www.purdue.edu/discoverypark/birck/for-birck-users/covid/index.php Seminars /Workshops / Events nanoHUB is excited to offer another session of our ongoing Hands-on Data Science and Machine Learning Training Series. The series is designed to enhance your skill set with practical tools you can use in your research or teaching. Title: Machine Learning Framework for Impurity Level Prediction in Semiconductors Date/Time: November 11, 2020 / 1 PM - 2 PM EST By: Arun Mannodi-Kanakkithodi, Postdoctoral researcher at Argonne National Laboratory and Incoming Assistant Professor of Materials Engineering at Purdue University Register here (limited seats): https://purdue.webex.com/purdue/onstage/g.php?MTID=e088a6ccfa042d4ac13bdb44… BNC Virtual Faculty Seminar Joint ECE and Birck Seminar November 12th, 2020 | 10:00am Krishna Jayant, Assistant Professor of Biomedical Engineering "Nanoscale electrical and optical neurotechnologies for mapping the sub-cellular neural code"<https://www.purdue.edu/discoverypark/birck/events/index.php?view=3130> NSAC Coffee Hour Special Series -NO.6<https://www.purdue.edu/discoverypark/birck/events/index.php?view=3131> An Interview with Prof. Peide Ye (Richard J. and Mary Jo Schwartz Professor of Electrical and Computer Engineering) When: Friday 2:00 pm (Nov-13, 2020) Where: MS Teams Live on https://tinyurl.com/coffee-hour-prof-ye<https://tinyurl.com/coffee-hour-bill-rowe> Previous recorded sessions: Youtube<https://www.youtube.com/playlist?list=PLUx5VBg665CQRu_hIBPeC472ZuP4Fbkyk> Spotify<https://open.spotify.com/show/1lPwxoBKVZLAUqpF9ougCW?si=4W41LwRmTB-wLs7aynT…> Podcast<https://anchor.fm/nsac-purdue/episodes/Joerg-Appenzeller-diligence--persist…> Birck Events<https://www.purdue.edu/discoverypark/birck/events/index.php> and Birck News<https://www.purdue.edu/discoverypark/birck/news/index.php> Birck Rule Change Dear Birck User Community, We've been re-evaluating the COVID restrictions that have been in place since we reopened our facility. We now have had several weeks of learning in our new environment and we are modifying two restrictions: 1. The 6:00 am - 10:00 am "staff-only" cleanroom restriction is being eliminated. Therefore effective immediately any authorized cleanroom user may enter the cleanroom at any time. Please continue to be mindful of the buddy requirement when working late at night or early in the morning..... namely do not do any acid processing without at least one other user in the cleanroom with you. 2. The gowning room capacity restriction of 3 people is being changed to 5 people. There can now be 5 individuals in the cleanroom gowning room at any given time. We hope this helps promote more efficient use of the gowning room while still maintaining the 6' social distancing requirement. While these changes are effective immediately we will change any signage in the next couple of days. Thanks for your cooperation and we will continue to evaluate our protocols as we move forward. The Engineering Staff Open Positions Research Internship Opportunity: Research internship is available with hourly payment of 15 $ per hour. The number of hours and timings are flexible. The research intern will conduct outdoor measurements and record data for machine learning applications. Juniors and senior undergrads with varied backgrounds in engineering and science are welcome to apply. The prospective candidate should have excellent academic credentials and an attention to detail to succeed in the project. Previous experience in engineering labs is necessary. The project is being conducted in the lab of Prof. Zubin Jacob (see www.electrodynamics.org<http://www.electrodynamics.org/>). Please contact Shree Hari Sureshbabu with your CV by Nov 30th 2020 (sureshbs(a)purdue.edu<mailto:sureshbs@purdue.edu>) Draper Labs: Looking to hire ASAP, high experience in fab. Applicants can be PostDocs, fresh PhDs or MS with experience. https://careers-draper.icims.com/jobs/4922/principal-mems--photonics-microf… EPFL's School of Engineering: currently has an open (junior faculty) position in Integrated Transducers, https://www.epfl.ch/about/working/faculty-position-in-integrated-transducer… and we are reaching out to the community to make colleagues aware of the open position and attract candidates. We aim in particular to increase the number of female faculty. Please spread the information in your network Birck Safety Protocols It is very gratifying to see our research community back 'in business' doing leading-edge research in our center after the long pause we all experienced this Spring. But at the same time we want to remind our entire user group of the critical importance of following the COVID safety protocols while using our facilities. If an outbreak of COVID exposures should happen at Birck there is a real possibility that we may need to close the facility again. So please read and support the following..... .....Some of our approved users are holding the doors open for others to enter the building. This may very well be a gesture of politeness to assist another, but it also can be perceived that non-approved people are entering our building with the assistance of one of our approved users. Additionally it does not allow us to have an accurate accounting of who is entering our building by evaluating card-swipe data. So everyone should swipe into Birck and not be let in by someone holding the door open. .....Face masks are required while in Birck. Approved users have been, and continue to be, strongly encouraged to bring their own face mask for their personal use while in the facility. At the entrances we have supplied quantities of disposable face masks for emergency use, but our supplies of these disposable masks are being depleted at the high rate of 300 - 400 masks per week. This rate of use seems exceptionally high when personal masks are strongly recommended. Please only take one mask from the supply, and only when you've forgotten your personal mask. ....Social distancing continues to be a challenge. This is a difficult habit to develop and groups of people have been seen clustered around a tool, or having a hallway conversation, and not adhering to the 6' spacing rule. Please continue to maintain at least 6' spacing between yourself and the nearest other person. Please stay vigilant in promoting and supporting these safety protocols. If we each do our part we will continue to stay open and conduct state-of-the-art research in our great facility. Follow us on Facebook and Twitter [Facebook icon]<https://www.facebook.com/nano.purdue.edu/> [Twitter icon] <https://twitter.com/BNCPurdue> ***If you have any news items (published papers, research news, awards, honors) please send to jjturner(a)purdue.edu<mailto:jjturner@purdue.edu> so they may be included on Birck's website, Facebook and Twitter pages*** Jaime Turner Lead Administrative Assistant to the Director | Birck Nanotechnology Center BRK | 1205 W State Street | West Lafayette, IN 47907 o: 765-494-3509<tel:7654943509> | m: 765-491-3064<tel:7654913064> | jjturner(a)purdue.edu<mailto:jjturner@purdue.edu> [83324AA6]<https://www.purdue.edu/>

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nanoHUB free hands-on workshop on machine learning: Dr. Arun Mannodi-Kanakkithodi, Argonne.
by Turner, Jaime J 03 Nov '20

03 Nov '20

Dear Colleagues, nanoHUB is excited to offer another session of our ongoing Hands-on Data Science and Machine Learning Training Series. The series is designed to enhance your skill set with practical tools you can use in your research or teaching. Title: Machine Learning Framework for Impurity Level Prediction in Semiconductors Date/Time: November 11, 2020 / 1 PM – 2 PM EST By: Arun Mannodi-Kanakkithodi, Postdoctoral researcher at Argonne National Laboratory and Incoming Assistant Professor of Materials Engineering at Purdue University Register here (limited seats): https://purdue.webex.com/purdue/onstage/g.php?MTID=e088a6ccfa042d4ac13bdb44… Abstract: In this work, we perform screening of functional atomic impurities in Cd-chalcogenide semiconductors using high-throughput computations and machine learning. High-performance computing resources located at Argonne National Lab (Carbon at CNM and LCRC) and Berkeley Lab (NERSC) were utilized to generate large databases of impurity properties from first principles-based density functional theory (DFT) computations. This dataset was combined with material descriptors—ranging from coordination environments to tabulated elemental properties to cheaper DFT data—to train state-of-the-art regression models. LASSO, random forest, and kernel ridge regression techniques were used and the predictive models were optimized with respect to the type and quantity of training data, optimal hyperparameter sets, and cross-validation errors. The best models thus achieved were deployed to make predictions for the combinatorial chemical space of all possible impurity atoms in Cd-chalogenide compounds, following which screening was performed on the basis of their relative energetics, leading to a shortlist of impurities for every compound which can affect a desirable or disastrous change in the optical and electronic properties of the semiconductor. The data and models developed in this work have major consequences for semiconductor applications ranging from solar cells to infrared sensors to quantum information sciences. Publication: https://www.nature.com/articles/s41524-020-0296-7. Bio: Arun Mannodi-Kanakkithodi is a computational materials scientist working as a postdoctoral researcher at the Center for Nanoscale Materials at Argonne. His research interests include AI-driven design of novel materials for energy applications, optimizing opto-electronic properties of novel semiconductor compositions, generating and mining computational materials databases, materials informatics, and data-driven materials discovery. Arun will begin a new position as assistant professor in Materials Engineering at Purdue University in December 2020. Additional information. Our series is aimed at active researchers and educators and little prior coding experience is required. In addition, all exercises will use nanoHUB cloud computing resources, no need to download or install any software. All you need is an internet connection and a browser. After the training sessions, you will be able to continue using nanoHUB for your research or class. You can find additional information and sign up links at https://nanohub.org/groups/ml/handsontraining. Here you can also find recorded material of our previous workshops and refresh your knowledge of Jupyter notebooks, querying databases, and training basic machine learning models such as neural networks for classification and regression. We hope that you can attend this workshop and walk away with enough information and practical skills to kickstart your foray into deep learning methods for your research or classroom use. Best regards, Prof. Ale Strachan, Materials Engineering, Purdue University Deputy Director, nanoHUB. http://nanohub.org/ -- Alejandro Strachan Professor of Materials Engineering, Purdue University Network for Computational Nanotechnology - nanohub.org<http://nanohub.org> Center for Predictive Materials and Devices (c-PRIMED)

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Birck Rule Changes
by Reger, Ronald K 03 Nov '20

03 Nov '20

Dear Birck User Community, We've been re-evaluating the COVID restrictions that have been in place since we reopened our facility. We now have had several weeks of learning in our new environment and we are modifying two restrictions: 1. The 6:00 am - 10:00 am "staff-only" cleanroom restriction is being eliminated. Therefore effective immediately any authorized cleanroom user may enter the cleanroom at any time. Please continue to be mindful of the buddy requirement when working late at night or early in the morning..... namely do not do any acid processing without at least one other user in the cleanroom with you. 2. The gowning room capacity restriction of 3 people is being changed to 5 people. There can now be 5 individuals in the cleanroom gowning room at any given time. We hope this helps promote more efficient use of the gowning room while still maintaining the 6' social distancing requirement. While these changes are effective immediately we will change any signage in the next couple of days. Thanks for your cooperation and we will continue to evaluate our protocols as we move forward. The Engineering Staff

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Seminars This Week
by Turner, Jaime J 03 Nov '20

03 Nov '20

All, There are several seminars this week which may be of interest to many of you. Click the hyperlinks for more information about each: Tuesday (11/3) at 3:30: Virtual Math Colloquium, presented by Zhenghan Wang<https://purdue0-my.sharepoint.com/:b:/g/personal/stewartd_purdue_edu/EfrMc4…> of UC Santa Barbara titled "Quantum mathematics: counting, computing, and reasoning with quantum numbers"; Zoom Link<https://us02web.zoom.us/j/86731705103?pwd=OGlMakRMeURSNVd5eDBwM3BwcnBxQT09#…> (Meeting ID: 867 3170 5103 Passcode: e2Fidw) Wednesday (11/4) at 10:00: PQSEI Seminar given by Prof. Peter Love<https://purdue0-my.sharepoint.com/:b:/g/personal/stewartd_purdue_edu/EWfBxj…> of Tufts University titled "Simulating Field Theory in the Light-Front Formulation"; Zoom Link<https://purdue-edu.zoom.us/j/94639398998#success> Thursday (11/5) at 10:00: ECE Seminar presented by Zheshen Zhang<https://purdue0-my.sharepoint.com/:w:/g/personal/stewartd_purdue_edu/ESpCFr…> from the University of Arizona titled "Entangled Sensor Networks Empowered by Machine Learning"; Zoom Link<https://purdue-edu.zoom.us/j/94391524658> Thursday (11/5) at 10:00: Prof. Boltasseva will be giving a seminar in the Midinfrared Discussions Webinar Series<https://zoom.us/webinar/register/WN_RMLXbZd2T-SQLN4Zfroucw>. Register via link. Thanks, David David J. Stewart, Ph.D. Managing Director Purdue Quantum Science and Engineering Institute (PQSEI) Birck Nanotechnology Center | 1205 West State Street | Room 1287C | West Lafayette, IN 47907 o: 765-496-3117<tel:7654963117> | davidstewart(a)purdue.edu<mailto:davidstewart@purdue.edu> | www.purdue.edu/dp/quantum<http://www.purdue.edu/dp/quantum> *Follow us! Twitter: @PurdueQuantum<https://twitter.com/PurdueQuantum>, LinkedIn<https://www.linkedin.com/company/pqsei/>, Facebook<https://www.facebook.com/QuantumPurdue> [8A5592F8]<https://www.purdue.edu/>

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BNC E-news: November 2nd, 2020
by Turner, Jaime J 02 Nov '20

02 Nov '20

[cid:image006.jpg@01D685C3.FA345960] Responding to COVID-19: Research Operations at Birck https://www.purdue.edu/discoverypark/birck/for-birck-users/covid/index.php Seminars /Workshops / Events BNC Virtual Faculty Seminar November 5th, 2020 | 12:00 noon Arnab Banerjee, Assistant Professor of Physics and Astronomy "Co-design towards exotic spin-based systems and devices"<https://www.purdue.edu/discoverypark/birck/events/index.php?view=3116> Join Zoom Meeting: https://purdue-edu.zoom.us/j/93857631004 NSAC Fab Forum Special Series - NO.1<https://www.purdue.edu/discoverypark/birck/events/index.php?view=3115> A Demonstration of Two-Tint TDTR When: Friday 2:00 pm (Nov-6, 2020) Where: MS Teams Live on https://tinyurl.com/fab-forum-tdtr<https://teams.microsoft.com/l/meetup-join/19%3ameeting_OWI3NzZlODEtMzFkOC00…> Birck Events<https://www.purdue.edu/discoverypark/birck/events/index.php> and Birck News<https://www.purdue.edu/discoverypark/birck/news/index.php> Update on Evaporators We have released the Lesker back to research with the new safety bar installed. If you want to use the Lesker please see Mike Bayless or Dave Lubelski for a quick demonstration of the safety mechanism. Additionally, new hoists have been designed in conjunction with a hoist supplier and the first one has been ordered. It is due to arrive next week and is slated to be installed on the CHA1 evaporator. After this hoist is received and installed the CHA1 can be returned to research after a short training of the new hoist system. We will be ordering the second hoist for the CHA2 shortly after the CHA1 is received, and it should be shipped to us just prior to Thanksgiving break. The Leybold evaporator's power supply was repaired at the factory and shipped back to us. During shipping the large tetrode tube had shaken loose, but we're installing it to see if any shipping damage occurred. Also, our skilled tradesman is installing a safety bar on this system to be used when it is returned to research, and we will know later this week if the power supply is good. Thanks for your patience! Launch of New Equipment Support Ticketing System Dear Birck User Community, As many of you know we have been running a pilot evaluation of our trouble-reporting 'ticketing' system that Rich Hosler and the engineering staff developed in June. We had good results with this pilot study, taking in approximately 40 tickets and responding to them in a timely manner. We now want to officially launch this system for Birck-wide use, and to that end we will formally begin its use throughout Birck immediately after next week's PM shutdown. Therefore, on Monday, October 26 we are directing all equipment related issues to be reported using our ticketing system. During the ramp-up phase the staff members will continue to remind users to not use email, but rather the ticketing system. For the first month any email inquiries/reports will also be input into the ticket system, and after a month's time we will no longer accept email notices (after November 23). We realize this is a culture change for our facility and we will continue to remind users about the ticketing system as we go. Why are we doing this? We are always interested in improving our operations, and we know this will address our ability to know about issues quickly and address them responsively. We have benchmarked other facilities who use ticketing processes to their great benefit. Additionally our own ECN uses a similar ticketing system to address computer and network issues all across Purdue. Below is a message from Rich regarding the use of the ticketing system, and a link to the system. We look forward to your use of the system which will improve our engineering operations. Your comments and suggestions are certainly welcome. Ron Message from Rich Hosler: Hello, The goal of this system is to reduce downtime and improve communication regarding tool and equipment availability. In general we envision this tool to be the first point of contact for any support requests regarding equipment or services inside BNC. I would ask that if you have any issues or questions regarding equipment in the Scifres Nanofabrication facility or with equipment residing in the BNC, please use the webpage below to submit a ticket. You do not have to create an account to put a ticket in, but it will help you track your tickets better if you do. https://bircknano.freshdesk.com/support/home All iLabs-tracked equipment should be represented in the list by the iLabs name. If you see a piece of equipment missing either put in a ticket for 'other' or email hosler0(a)purdue.edu<mailto:hosler0@purdue.edu> and I'll get the issue resolved. If you're unsure of which equipment to report under you can either select the general core that best represents the system or 'unknown/other'. Under the 'group' tab please select 'research engineering' if this is regarding equipment operation, otherwise there are categories for administration, iLabs billing, and building/installation issues. Any other questions you may have can be reported to hosler0(a)purdue.edu<mailto:hosler0@purdue.edu> and I'll do my best to get you an answer quickly. Thanks for your assistance, Rich Hosler Open Positions Research Internship Opportunity: Research internship is available with hourly payment of 15 $ per hour. The number of hours and timings are flexible. The research intern will conduct outdoor measurements and record data for machine learning applications. Juniors and senior undergrads with varied backgrounds in engineering and science are welcome to apply. The prospective candidate should have excellent academic credentials and an attention to detail to succeed in the project. Previous experience in engineering labs is necessary. The project is being conducted in the lab of Prof. Zubin Jacob (see www.electrodynamics.org<http://www.electrodynamics.org/>). Please contact Shree Hari Sureshbabu with your CV by Nov 30th 2020 (sureshbs(a)purdue.edu<mailto:sureshbs@purdue.edu>) Draper Labs: Looking to hire ASAP, high experience in fab. Applicants can be PostDocs, fresh PhDs or MS with experience. https://careers-draper.icims.com/jobs/4922/principal-mems--photonics-microf… Birck Safety Protocols It is very gratifying to see our research community back 'in business' doing leading-edge research in our center after the long pause we all experienced this Spring. But at the same time we want to remind our entire user group of the critical importance of following the COVID safety protocols while using our facilities. If an outbreak of COVID exposures should happen at Birck there is a real possibility that we may need to close the facility again. So please read and support the following..... .....Some of our approved users are holding the doors open for others to enter the building. This may very well be a gesture of politeness to assist another, but it also can be perceived that non-approved people are entering our building with the assistance of one of our approved users. Additionally it does not allow us to have an accurate accounting of who is entering our building by evaluating card-swipe data. So everyone should swipe into Birck and not be let in by someone holding the door open. .....Face masks are required while in Birck. Approved users have been, and continue to be, strongly encouraged to bring their own face mask for their personal use while in the facility. At the entrances we have supplied quantities of disposable face masks for emergency use, but our supplies of these disposable masks are being depleted at the high rate of 300 - 400 masks per week. This rate of use seems exceptionally high when personal masks are strongly recommended. Please only take one mask from the supply, and only when you've forgotten your personal mask. ....Social distancing continues to be a challenge. This is a difficult habit to develop and groups of people have been seen clustered around a tool, or having a hallway conversation, and not adhering to the 6' spacing rule. Please continue to maintain at least 6' spacing between yourself and the nearest other person. Please stay vigilant in promoting and supporting these safety protocols. If we each do our part we will continue to stay open and conduct state-of-the-art research in our great facility. Follow us on Facebook and Twitter [Facebook icon]<https://www.facebook.com/nano.purdue.edu/> [Twitter icon] <https://twitter.com/BNCPurdue> ***If you have any news items (published papers, research news, awards, honors) please send to jjturner(a)purdue.edu<mailto:jjturner@purdue.edu> so they may be included on Birck's website, Facebook and Twitter pages*** Jaime Turner Lead Administrative Assistant to the Director | Birck Nanotechnology Center BRK | 1205 W State Street | West Lafayette, IN 47907 o: 765-494-3509<tel:7654943509> | m: 765-491-3064<tel:7654913064> | jjturner(a)purdue.edu<mailto:jjturner@purdue.edu> [83324AA6]<https://www.purdue.edu/>

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