Patterning of α-Fe2O3 nanowires by pressing a microstructured mold and their field-emission properties

✍ Scribed by Keisuke Nagato; Masaki Furubayashi; Tetsuya Hamaguchi; Masayuki Nakao

• Publisher: Elsevier Science
• Year: 2011
• Tongue: English
• Weight: 789 KB
• Volume: 88
• Category: Article
• ISSN: 0167-9317
• DOI: 10.1016/j.mee.2011.01.051

✦ Synopsis

We patterned a-Fe 2 O 3 nanowires by a simple pressing method and investigated their field emission properties. We synthesized a-Fe 2 O 3 nanowires from a sputtered thin Fe film. Fe films (thicknesses: 150, 300, 650 and 1700 nm) were annealed from room temperature to 375 °C for 1 min and maintained at a temperature of 375 °C for 0-60 min. The length of the nanowires increased with the annealing time and thickness of the Fe films. We pressed a microstructured mold onto the nanowires and patterned the nanowires with an island array. The field-emission current of the nanowires patterned by pressing a mold was higher than that of nonpressed nanowires.