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Dear Birck Users,
The Birck Nanotechnology Center (BRK) is proud to announce the construction of our cutting-edge facility, the 'Quantum Recharge Core'. As valued members of our Birck community, we cordially
invite you to participate in a crucial discussion about capital investments that will drive the next wave of quantum and nanotechnology research at BRK. The meeting is scheduled on
July 25, Tuesday, between 4:00-5:00 pm with the following agenda:
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Overview of Birck upgrades and introduce our new Research Manager, Neil Dilley (10mins, Zhihong Chen)
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Overview of quantum science center research and future opportunities for growth (10mins, Yong Chen)
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Future equipment introduction (20mins, Abhishek Solanki, Aravindh Shankar, Demid Sychev)
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Feedback and discussions (20mins)
The Quantum Recharge Core will be supported by Birck research scientists and open for broad user training. It will play a pivotal role in advancing our capabilities and fostering collaborations
in the Birck community and across the Purdue campus. During the meeting, we will explore various avenues for BRK capital investments. Following is a list of potential capital equipment for discussion.
1. QNAMI: Nitrogen-Vacancy Scanning Microscope with cryogenic temperatures and 0.5 T magnetic field:
Quantum sensing experiments enabled by a turn-key commercial tool with scanning NV tips.
2. Dilution Refrigerator for Optical and Electrical Transport/RF Measurements at mK Range:
The Quantum Recharge Core will house a state-of-the-art dilution refrigerator donated by Prof. Yong P Chen, that enables precise optical and electrical transport measurements at millikelvin
temperatures.
3. New Optical Setups with up to 7 Tesla Magnetic Field and Liquid Helium Temperatures:
We will discuss advanced optical setups with a powerful 7 Tesla magnetic field and liquid helium temperatures. These setups will open doors to groundbreaking
research opportunities and contribute significantly to our understanding of quantum phenomena at cryogenic temperatures.
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7 Tesla out-of-plane (OOP) magnetic field.
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Confocal Microscope with 532nm excitation source.
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FPGA-based Arbitrary waveform generator.
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Princeton Instruments Spectrometer for Raman Measurements
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Laser-Driven Tunable light source for widely tunable excitation source for optical cavities.
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Magneto-Optical Kerr Effect measurements.
4. THz Measurements at Cryogenic Temperatures:
The Quantum Recharge Core aims to explore the development of terahertz (THz) measurements at cryogenic temperatures.
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Hollow-core fiber for ~15fs laser pulses that can be used for pump-probe experiments and THz generation ~10 THz.
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Commercial THz source, detector, and optics for 0.1-6THz range.
We believe that your valuable insights and expertise are crucial to the success of these initiatives. Your active participation in the discussions will help shape the future of nanotechnology
and quantum research at Birck.
Thank you and we look forward to seeing you at the meeting in person or virtually!
Zhihong
Zhihong Chen
Professor of Elmore Family School of Electrical and Computer Engineering
Mary Jo and Robert L. Kirk
Director of Birck Nanotechnology Center
Purdue University
1205 Mitch Daniels Blvd
West Lafayette, IN 47907-2057
Tel: (765)494-0772
Fax: (765)496-8299
Email: zhchen@purdue.edu
Attention to all sputtering users:
In early June of this year, we removed all access to the sputtering tools in the cleanroom due to lengthy lead times in obtaining replacement parts, as a precaution to help maintain the up-time of the tools. As we have received the appropriate
assortment of parts to perform maintenance on the tools as issues arise, we have decided to start opening up the tools to users once again. Starting Monday, October 31st, the Metal/Dielectric sputter tool only will be once again available for training
and use. Since it’s been almost 5 months since anyone has used the tool, we have changed trained users’ access level to “Preliminary.” When you want to use the tool, make a reservation during business hours (8 AM to 5 PM, Monday through Friday), and we will
coordinate such that your first deposition will be supervised by a staff member, to act as a refresher training after not using the tool for so long. Then, once it’s deemed appropriate to do so, users’ access will be restored to the normal level. Please contact
Dave Lubelski and Dan Witter for questions and coordinating training and usage, and please check the tool’s wiki page for updated material availability and compatibility. If the desired material isn’t installed, please let us know ahead of time so we can
appropriately prepare the system.
Dan Witter
Dangerous Chemical Exposure Issue
It has been brought to our attention that user(s) have been working in the cleanroom without proper PPE. This may result in a serious injury!
You are required to wear the listed PPE when using an acid hood.
+ + + +
Required when using HF, BOE
or anything containing TMAH
Failure to follow proper procedures will result in loss of access to facilities!
Stephen Jurss
Birck Safety Manager
Chemical Use at Birck
Dear All –
We recently had an incident where H2O2 was stored on the BOE shelf in a chemical storage cabinet in the cleanroom. The next user retrieved the H2O2 thinking it was BOE, and got a much different outcome from his etch. So two reminders
to our research community:
A. Please store chemicals in the proper, labeled locations in our chemical storage cabinets.
B. Double-check the labels on chemical bottles prior to using them in your process.
Thanks,
Ron
Dear Birck Research Community,
Recently we had an air handling situation whereby the heat and humidity in one of our lab wings was elevated due to an air handler being off-line for repair. With the high heat and humidity in the lab wing it was necessary to open doors
to the affected labs to try to promote some level of cooling from the hallway. The air handler issue was fixed within a couple of days and the A/C returned to normal in the labs.
As a reminder, propping doors open is strictly against our policy under all normal conditions. Additionally, entering a lab without swiping in with your own card is also strictly against our policies. We rely on our card-swipe and equipment-use
income to support and fund our operation. Anyone who enters a lab without swiping their card, or who enters a lab using someone else’s card, or who knocks on a lab door and is admitted by someone already in the lab is falsifying use of the lab. This will
lead to disciplinary action up to and including dismissal from the university. Please use your cards responsibly in our research facility.
Birck Management
Buffered Oxide Etch Concentration Change
We were notified by our BOE supplier, VWR, that they are discontinuing their 6:1 solution but will continue stocking & selling the 5:1 solution. We have two cases left of the 6:1 but will start ordering the 5:1 for future use at Birck.
Please note the etch rate change per this comparison table:
Safety:
Important: Improper Disposal of Solvents in hood drains
Users,
Recent discharge monitoring of waste water identified high levels of Acetone and MEK (Methyl ethyl ketone). Please dispose of solvents in the white 1 gal containers in the solvent hoods.
Continued violations of our policies will result in loss of laboratory access to said individuals.
Thank you for your cooperation in this matter,
Stephen
Birck Safety Manager
Dear Birck Users,
Birck and Bindley are moving to an ANSI-compliant safety glasses policy in our labs. What this means is that prescription glasses that aren’t ANSI Z87.1 compliant will no longer be allowed for work in Birck labs or the cleanroom. Either
ANSI-compliant safety glasses currently supplied to labs or ANSI-compliant prescription glasses are required to be worn to enter the laboratory. Verbal warnings will be issued to non-compliant users until September 1, 2022 after which more formal action will
be taken.
Stephen Jurss
Birck Safety Manager
Dear Birck Users:
In an effort to comply with university policy and OSHA regulation Birck is making access to Safety Data Sheets available via QR codes located on the laboratory hoods.
Please be aware we are removing hardcopy binders from various locations throughout the facility. Please note: SDS’s will still be required with all chemical orders.
Stephen Jurss
Birck Safety Manger
Take a virtual tour of our Cleanroom:
Job Opening at Standford University:
Prof. Paul McIntyre at Stanford University is interested in recruiting a postdoctoral researcher who would lead new research efforts related to semiconductor materials for energy-efficient micro/nanoelectronics via one of the following
postdoctoral fellowship programs at Stanford – 1) the GLAM Postdoctoral Fellowship program,
https://glam.stanford.edu/fellowships, or 2) the Stanford Energy Postdoctoral Fellowship program, described below. These are highly competitive programs that are meant to identify and support creative and highly motivated early-career scholars who will
go on to have a major impact in their future work. The application windows for both postdoc programs opened on July 1. He would be happy to speak with any prospective applicants to these programs about their research proposal ideas relevant to his group’s
research. (https://mcintyre.stanford.edu/)
Paul C. McIntyre
Rick and Melinda Reed Professor in the School of Engineering
Professor of Materials Science and Engineering, and of Photon Science
Senior Fellow, by courtesy, Precourt Institute for Energy
Stanford University
Associate Lab Director, SLAC National Accelerator Laboratory
Director, Stanford Synchrotron Radiation Lightsource
Building 137, Room 314
2575 Sand Hill Road, Menlo Park, CA 94025
Office phone: 650-926-5319
Job Description: Postdoctoral Researcher - Solid-State Optoelectronic Devices
Area of Research: We are seeking a highly motivated and talented Postdoctoral Researcher to join our team focused on emerging optoelectronic devices. The successful candidate will contribute to the design, fabrication, testing, modeling,
and analysis of solar cells and photodetectors to advance the understanding and optimization of these devices. This position offers an exciting opportunity to work in a collaborative and innovative research environment, pushing the boundaries of next-generation
solid-state optoelectronics.
Description of Duties: Successful candidates will place their major focus on achieving original first-authored publications in interdisciplinary academic journals. They will work effectively in a team environment and will value the
chance to reach across disciplines and to work with partners in industry and at our partner U.S. Department of Energy national labs. Post-doctoral fellows will take advantage of the opportunity to increase their mentoring skills, helping doctoral students
to develop as scientist-engineers.
Essential Qualifications:
- Ph.D. in Physics, Electrical Engineering, Materials Science, or a related field,
with expertise in solid-state semiconducting devices.
- Expertise in modeling optoelectronic devices, preferably with a specialization in solar cells and/or photodetectors.
- Proficiency in device simulation software such as Sentaurus, Silvaco, TCAD, Setfos, and experience with device modeling tools (e.g., MATLAB, Python, or equivalent).
- Profound understanding of semiconductor physics and solid-state device operation principles.
- Additional qualifications of interest
- Device fabrication skills and experience with at least one {colloidal quantum dots, 2D materials, perovskites, silicon, organics} or other advanced semiconductors.
- Experience with device characterization and analytical methods, such as optical (e.g. PL, PL lifetime, TA) and electrical (e.g. EL, impedance spectroscopy) measurement.
- Experience in analyzing experimental data and working collaboratively with other experimentalists.
- Excellent written and oral communication skills, with a track record of publishing research findings in peer-reviewed journals.
- Ability to work independently and as part of a multidisciplinary team, effectively managing time and prioritizing tasks.
Salary: USD 52,000/year
Expected Start Date: Sep 15, 2023, or as soon as possible thereafter
Appointment: Term – (12 months) with a possible renewal
How to apply:
Please include in your application package a cover letter; your full academic CV; information on 2 referees that are prepared to be consulted; your two most relevant publications. Please send as a single combined PDF whose file name includes
your first and last names to Melissa Rosen (melissa.rosen@northwestern.edu) with the subject line
“Device physics PDF Application” by August 15, 2023. Evaluation of candidates will begin immediately and continue until filled.
Posting Date: July 15, 2023
Closing Date: Aug 15, 2023
References
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Morteza Najarian, A.; Vafaie, M.; Johnston, A.; Zhu, T.; Wei, M.; Saidaminov, M. I.; Hou, Y.; Hoogland, S.; García de Arquer, F. P.; Sargent, E. H. Sub-Millimetre Light Detection and Ranging Using Perovskites. Nat. Electron. 2022, 5 (8),
511–518.
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Ouellette, O.; Lesage-Landry, A.; Scheffel, B.; Hoogland, S.; García de Arquer, F. P.; Sargent, E. H. Spatial Collection in Colloidal Quantum Dot Solar Cells. Adv. Funct. Mater. 2020, 30 (1), 1908200.
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Wang, Z.; Zeng, L.; Zhu, T.; Chen, H.; Chen, B.; Kubicki, D. J.; Balvanz, A.; Li, C.; Maxwell, A.; Ugur, E.; Dos Reis, R.; Cheng, M.; Yang, G.; Subedi, B.; Luo, D.; Hu, J.; Wang, J.; Teale, S.; Mahesh, S.; Wang, S.; Hu, S.; Jung, E. D.; Wei, M.; Park, S. M.;
Grater, L.; Aydin, E.; Song, Z.; Podraza, N. J.; Lu, Z.-H.; Huang, J.; Dravid, V. P.; De Wolf, S.; Yan, Y.; Grätzel, M.; Kanatzidis, M. G.; Sargent, E. H. Suppressed Phase Segregation for Triple-Junction Perovskite Solar Cells. Nature 2023, 618 (7963),
74–79.
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Chen, H.; Maxwell, A.; Li, C.; Teale, S.; Chen, B.; Zhu, T.; Ugur, E.; Harrison, G.; Grater, L.; Wang, J.; Wang, Z.; Zeng, L.; Park, S. M.; Chen, L.; Serles, P.; Awni, R. A.; Subedi, B.; Zheng, X.; Xiao, C.; Podraza, N. J.; Filleter, T.; Liu, C.; Yang, Y.;
Luther, J. M.; De Wolf, S.; Kanatzidis, M. G.; Yan, Y.; Sargent, E. H. Regulating Surface Potential Maximizes Voltage in All-Perovskite Tandems. Nature 2023, 613 (7945), 676–681.
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Pina, J. M.; Vafaie, M.; Parmar, D. H.; Atan, O.; Xia, P.; Zhang, Y.; Najarian, A. M.; de Arquer, F. P. G.; Hoogland, S.; Sargent, E. H. Quantum-Size-Effect Tuning Enables Narrowband IR Photodetection with Low Sunlight Interference. Nano Lett. 2022, 22 (16),
6802–6807.
Ted
Ted Sargent
Lynn Hopton Davis and Greg Davis Professor
Department of Chemistry
Department of Electrical and Computer Engineering
Northwestern University
https://light.northwestern.edu
847 644 8194
NSAC
President: Walter Smith (smit3543@purdue.edu) or
nsac@purdue.edu
NSAC Fab Forum
NSAC Coffee Hour
Birck Nanotechnology Center Advanced Capabilities
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