Synthesis of High-quality 2D Semiconductors: Controlling Defects & Dopants
Department of Materials Science and Engineering, Stanford University
About this Event
San Francisco Bay Area IEEE Nanotechnology Council
2020, 2017 & 2014 Nanotechnology Council Outstanding Chapter (world-wide)
2019, 2016 & 2014 IEEE Outstanding Chapter (Western USA)
2019, 2016 IEEE Outstanding Chapter (Santa Clara Valley)
Deterministic Synthesis of High-quality 2D Semiconductors: Controlling Defects, Dopants, and Polytype
Andy Mannix
Assistant Professor of Materials Science and Engineering at Stanford University
In-Person Meeting
Thursday, August 27, 2026
11:30 AM: Networking, Pizza & Drinks
Noon -- 1 pm: Seminar
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Walk-In attendance is welcomed but discouraged (cash or check; no credit cards)
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Location:
EAG Laboratories
810 Kifer Road, Sunnyvale
==> Use corner entrance: Kifer Road / San Lucar Court
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Deterministic Synthesis of High-quality 2D Semiconductors: Controlling Defects, Dopants, and Polytype
Abstract:
Realizing the potential of 2D transition metal dichalcogenides (TMDs) for next-generation semiconductor technologies will require synthetic films that combine high crystalline quality with wafer-scale uniformity and precise control over electronic and optical properties.
In this talk, I will present recent work from our group on precursor and reactor engineering to improve material quality while enabling control of composition, doping, and crystal structure.
First, I will show how controlling precursor chemistry in solid-source CVD enables WSe2 with enhanced uniformity, low charged-defect densities, and high-performance p-type transistors.
I will then discuss metal-organic CVD approaches for scalable growth of WS2, including substitutional doping, alloying, and selective formation of the ferroelectric 3R polytype with distinct nonlinear optical and valley properties.
Finally, I will introduce patterned dopant sources that enable programmed lateral carrier-density profiles.
Together, these results show how advances in synthesis can move 2D semiconductors beyond exfoliated laboratory specimens toward materials whose properties can be engineered during growth for future electronic and optoelectronic devices.
Read more:
Speaker Bio:
Andy Mannix
Assistant Professor of Materials Science and Engineering at Stanford University
His research focuses on controlling the synthesis, structure, and interfaces of two-dimensional materials to uncover new electronic, optical, and quantum phenomena.
His group combines materials growth, nanofabrication, automated experimentation, and advanced microscopy to develop new ways of engineering atomically thin semiconductors and van der Waals heterostructures.
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* Please help us manage our event planning. When we have many walk-in attendees, it is difficult for us to order the proper amount of food for lunch.
** Tickets cancelled by 8 AM on August 27, will have payments refunded*** Note: Eventbrite Fees will not be refunded
When it comes to understanding the physical structure, chemical properties and performance of advanced materials and integrated circuitry, no other scientific services company offers the breadth of experience, diversity of analytical techniques or technical ingenuity of EAG Laboratories. We deliver multi-disciplinary, problem-solving expertise to help our customers accelerate innovation, ensure quality and safety, and protect intellectual property.
Where is it happening?
Event Location & Nearby Stays:
USD 4.00 to USD 6.00
