High-yield TiO2 nanowire synthesis and single nanowire field-effect transistor fabrication

Jeong Min Baik, Myung Hwa Kim, Christopher Larson, Xihong Chen, Shujing Guo, Alec M. Wodtke, Martin Moskovits

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

We report a facile method for synthesizing single-crystal rutile TiO 2 nanowires using atmospheric-pressure, chemical vapor deposition with Ti and TiO as precursors. The synthesis is found to depend critically on the predeposition of a layer of metallic Ti on the Ni catalysts layer. The omission of this step seems previously to have impeded the efficient synthesis of titania nanowires. Single-nanowire field-effect transistors showed the TiO2 nanowires to be n -type semiconductors with conductance activation energy of ∼58 meV.

Original languageEnglish
Article number242111
JournalApplied Physics Letters
Volume92
Issue number24
DOIs
StatePublished - 2008

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