p‐Type α‐Fe₂O₃ Nanowires and their n‐Type Transition in a Reductive Ambient

Switching the wires: p-Type α-Fe2O3 nanowires with ordered oxygen vacancies were synthesized without additional annealing. After a process of annealing in a reductive ambient, a p-type to n-type transition was achieved in a nanowire device (see graph and image). The observation of a p–n transition suggests potential applications for these nanowires in future nanodevice technologies. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2296/2007/z700004_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.