Two-stage epitaxial growth of vertically-aligned SnO₂ nano-rods on(001) ceria

Journal Article · Sat Sep 20 00:00:00 EDT 2014 · Journal of Crystal Growth

DOI:https://doi.org/10.1016/j.jcrysgro.2014.09.021· OSTI ID:1169021

Solovyov, Vyacheslav F. ^[1]; Wu, Li-jun ^[1]; Rupich, Martin W. ^[2]; Sathyamurthy, Srivatsan ^[2]; Li, Xiaoping ^[2]; Li, Qiang ^[1]

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1. Brookhaven National Lab. (BNL), Upton, NY (United States)
2. American Superconductor, Devens, MA (United States)

Growth of high-aspect ratio oriented tin oxide, SnO₂, nano-rods is complicated by a limited choice of matching substrates. We show that a (001) cerium oxide, CeO₂, surface uniquely enables epitaxial growth of tin-oxide nano-rods via a two-stage process. First, (100) oriented nano-wires coat the ceria surface by lateral growth, forming a uniaxially-textured SnO₂ deposit. Second, vertical SnO₂nano-rods nucleate on the deposit by homoepitaxy. We demonstrate growth of vertically oriented 1-2 μm long nano-rods with an average diameter of ≈20 nm.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES)
• Grant/Contract Number: DE-SC00112704; AR0000190
• OSTI ID: 1169021
• Alternate ID(s): OSTI ID: 1556278
• Report Number(s): BNL-106235-2014-JA; R&D Project: MA012; KC0202050; TRN: US1500472
• Journal Information: Journal of Crystal Growth, Vol. 408; ISSN 0022-0248
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY