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Broadband, high-sensitivity self-powered ferroelectric LuMnO3-based photodetector with large photocurrent output.
- Source :
-
Ceramics International . Apr2023, Vol. 49 Issue 8, p12462-12468. 7p. - Publication Year :
- 2023
-
Abstract
- The broadband spectrum detection from ultraviolet to near-infrared is hankered in the photoelectric applications of imaging, sensing and communication. Here, a new self-powered photodetector based on ferroelectric LuMnO 3 thin film with a narrow bandgap of 1.46 eV exhibits high-sensitivity ultraviolet–visible–near infrared photodetection properties. The responsivity (R) and detectivity (D *) in sunlight are 0.4 A/W and 7.05 × 1011 Jones, which are much higher than that of other ferroelectric photodetectors. Moreover, under the monochromatic light (900 nm), the R and D * can reach 0.39 A/W and 6.89 × 1011 Jones. The outstanding photodetection performances owed to the large photocurrent output, where the short-circuit current density can reach 10.5 mA/cm2 under 1 sun illumination. The synergistic effect of ferroelectric photovoltaic effect and interface barrier effect demonstrates that the multi-driving forces can achieve high dissociation efficiency for photon-generated carriers. The excellent photodetection performances open up new application of ferroelectric materials in broadband self-powered photodetectors. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 49
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 162257431
- Full Text :
- https://doi.org/10.1016/j.ceramint.2022.12.106