journal article·2015-10-27Open access

Lithiation of Rutile TiO2-Coated Si NWs Observed by in Situ TEM

Sung Joo Kim, Alireza Kargar, Deli Wang, George W. Graham, Xiaoqing Pan

Chemistry of Materials· Volume 27· Issue 20

Abstract

Lithiation of rutile TiO2 coated Si NWs was performed inside a transmission electron microscope. TiO2 coatings with sufficiently large coating thickness-to-NW diameter ratio induce segmented lithiation of a Si NW that reduces radial but promotes axial Li ion migration during transformation of Si to Li15Si4.
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Research context

OpenAlex topics: Advancements in Battery Materials · Semiconductor materials and interfaces · Semiconductor materials and devices

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Affiliations

Department of Materials Science and Engineering, University of Michigan, 2300 Hayward Street, Ann Arbor, Michigan 48109, United States

Department of Chemical Engineering and Materials Science, University of California−Irvine, Irvine, California 92697, United States

Department of Electrical and Computer Engineering, University of California−San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States

Department of Physics and Astronomy, University of California−Irvine, Irvine, California 92697, United States

Funding

Basic Energy Sciences · Division of Materials Research

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