The Influence of Oxygen Content on the Thermal Activation of Hematite Nanowires

• DOI: 10.1002/anie.201107467
• Publication Date: 2012-03-13T16:04:48Z
• Authors: Yichuan Ling; Gongming Wang; Jay Reddy; Changchun Wang; Jin Z. Zhang; Yat Li
• Keywords: Photocurrent

Live wire: Thermal decomposition of β-FeOOH nanowires at 550 °C in an oxygen-deficient atmosphere generates highly photoactive hematite (N-hematite), which yielded a substantially enhanced photocurrent density, as compared to sample prepared air (A-hematite). This photoactivity is attributed the improved donor density nanowires, result formation oxygen vacancies.