O
Oleg Shpyrko
Researcher at University of California, San Diego
Publications - 130
Citations - 4412
Oleg Shpyrko is an academic researcher from University of California, San Diego. The author has contributed to research in topics: Wetting & Monolayer. The author has an hindex of 31, co-authored 123 publications receiving 3661 citations. Previous affiliations of Oleg Shpyrko include Harvard University & University of California, Los Angeles.
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Journal ArticleDOI
Synchrotron X-ray Analytical Techniques for Studying Materials Electrochemistry in Rechargeable Batteries
Feng Lin,Yijin Liu,Xiqian Yu,Xiqian Yu,Lei Cheng,Andrej Singer,Oleg Shpyrko,Huolin L. Xin,Nobumichi Tamura,Chixia Tian,Tsu-Chien Weng,Xiao-Qing Yang,Ying Shirley Meng,Dennis Nordlund,Wanli Yang,Marca M. Doeff +15 more
TL;DR: This article begins with the discussion of various rechargeable batteries and associated important scientific questions in the field, followed by a review of synchrotron X-ray based analytical tools and their successful applications and their fundamental insights into these scientific questions.
Journal ArticleDOI
Topological defect dynamics in operando battery nanoparticles
Andrew Ulvestad,Andrej Singer,Jesse N. Clark,Hyung-Man Cho,Jong Woo Kim,Ross Harder,J. Maser,Ying Shirley Meng,Oleg Shpyrko +8 more
TL;DR: Three-dimensional imaging of dislocation dynamics in individual battery cathode nanoparticles under operando conditions using Bragg coherent diffractive imaging opens a powerful avenue for facilitating improvement and rational design of nanostructured materials.
Journal ArticleDOI
Nucleation of dislocations and their dynamics in layered oxide cathode materials during battery charging
Andrej Singer,Andrej Singer,Minghao Zhang,Sunny Hy,Devin Cela,Chengcheng Fang,Thomas A. Wynn,Bao Qiu,Y. Xia,Zhaoping Liu,Andrew Ulvestad,Nelson Hua,James Wingert,Haodong Liu,Michael Sprung,Alexey Zozulya,Alexey Zozulya,Evan Maxey,Ross Harder,Ying Shirley Meng,Oleg Shpyrko +20 more
TL;DR: In this paper, the authors reveal the link between voltage fade and nucleation of a mobile dislocation network in the oxide nanoparticles, offering design ideas to restore the voltage in the battery.
Journal ArticleDOI
Bright circularly polarized soft x-ray high harmonics for x-ray magnetic circular dichroism
Tingting Fan,Patrik Gychtol,Ronny Knut,Carlos Hernandez-Garcia,Daniel D. Hickstein,Christian Gentry,Craig W. Hogle,Dmitriy Zusin,Kevin M. Dorney,Oleg Shpyrko,Oren Cohen,Ofer Kfir,Luis Plaja,Andreas Becker,Agnieszka Jaron-Becker,Margaret M. Murnane,Henry C. Kapteyn,Tenio Popmintchev +17 more
TL;DR: This work demonstrates the feasibility of manipulating the polarization, spectrum, and temporal shape of high harmonics in the soft X-ray region by manipulating the driving laser waveform and explains the single-atom and macroscopic physics.
Journal ArticleDOI
Surface Crystallization in a Liquid AuSi Alloy
Oleg Shpyrko,Oleg Shpyrko,Reinhard Streitel,Venkatachalapathy S. K. Balagurusamy,Alexei Grigoriev,Moshe Deutsch,Benjamin M. Ocko,Mati Meron,Binhua Lin,Peter S. Pershan +9 more
TL;DR: X-ray measurements reveal a crystalline monolayer at the surface of the eutectic liquid Au82Si18, at temperatures above the alloy's melting point, notable, considering that AuSi does not form stable bulk crystalline phases at any concentration and temperature.