Abstract
BiFeO<sub>3</sub> (BFO)-based ferroelectrics have been proved to be visible-light-driven photoelectrodes for O<sub>2</sub> production. However, the hitherto reported photoelectrochemical performances remain inferior to meet the requirements for any applications. Besides, expensive noble metals (Ag, Au) are commonly required to achieve high photoelectric conversion efficiency. Here, the significant enhancements of photoelectrochemical performance is reported by fabricating a noble-metal-free reduced graphene oxide (RGO)/BFO composite film via a simple and cost-effective solution process. The optimized RGO/BFO composite film exhibits a 600% improvement of the short-circuit photocurrent density compared to that of the pristine BFO, and also outperforms the noble-metal/BFO cells under the same reaction conditions. Furthermore, the incident photon-to-current efficiency of the optimized RGO/BFO sample shows threefold enhancement. This study delivers a facile and low-cost approach to preparing 2D materials/ferroelectric heterostructures and offers a promising pathway to boost the performance of semiconducting ferroelectric photoelectrodes. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
| Original language | English |
|---|---|
| Article number | 1603457 |
| Journal | Small |
| Volume | 13 |
| Issue number | 16 |
| DOIs | |
| Publication status | Published - 25 Apr 2017 |
| Externally published | Yes |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].Research Keywords
- ferroelectrics
- photoelectrochemical
- photoelectrodes
- reduced graphene oxide