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

Journal Article · Mon Dec 15 00:00:00 EST 2014 · Journal of Crystal Growth

DOI:https://doi.org/10.1016/j.jcrysgro.2014.09.021· OSTI ID:1211058

Solovyov, VF; Wu, LJ; Rupich, MW; Sathyamurthy, S; Li, XP; Li, Q

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 SnO2 nano-rods nucleate on the deposit by homoepitaxy. We demonstrate growth of vertically oriented 1-2 mu m long nano-rods with an average diameter of approximate to 20 nm. 2014 Elsevier B.V. All rights reserved.

• Sponsoring Organization: USDOE Advanced Research Projects Agency - Energy (ARPA-E)
• DOE Contract Number: DE-AR0000190
• OSTI ID: 1211058
• Journal Information: Journal of Crystal Growth, Vol. 408; ISSN 0022-0248
• Country of Publication: United States
• Language: English