Search Results for author: Andriy Zakutayev

Found 4 papers, 1 papers with code

Autonomous sputter synthesis of thin film nitrides with composition controlled by Bayesian optimization of optical plasma emission

no code implementations18 May 2023 Davi M. Febba, Kevin R. Talley, Kendal Johnson, Stephen Schaefer, Sage R. Bauers, John S. Mangum, Rebecca W. Smaha, Andriy Zakutayev

Here, we report the design and implementation of an autonomous workflow for sputter deposition of thin films with controlled composition, leveraging a highly automated sputtering reactor custom-controlled by Python, optical emission spectroscopy (OES), and a Bayesian optimization algorithm.

Bayesian Optimization

Gallium Oxide Heterojunction Diodes for Improved High-Temperature Performance

no code implementations31 Mar 2022 Shahadat H. Sohel, Ramchandra Kotecha, Imran S Khan, Karen N. Heinselman, Sreekant Narumanchi, M Brooks Tellekamp, Andriy Zakutayev

${\beta}$-Ga${_2}$O${_3}$ based semiconductor devices are expected to have significantly improved high-power and high-temperature performance due to its ultra-wide bandgap of close to 5 eV.

Vocal Bursts Intensity Prediction

Improving Reproducibility of Sputter Deposited Ferroelectric Wurtzite Al0.6Sc0.4N Films using In-situ Optical Emission Spectrometry

no code implementations21 Jan 2021 Daniel Drury, Keisuke Yazawa, Allison Mis, Kevin Talley, Andriy Zakutayev, Geoff L. Brennecka

This in-situ technique uses changes in the Ar(I) and N2(I) emission lines of the glow discharge during growth to identify films that subsequently exhibit unacceptable structural and electrical performance.

Materials Science

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