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Fabrication of ZnSnO3 single crystal films on sapphire substrates by pulsed laser deposition for solar-blind photodetectors.
- Source :
- Applied Physics Letters; 3/18/2024, Vol. 124 Issue 12, p1-7, 7p
- Publication Year :
- 2024
-
Abstract
- ZnSnO<subscript>3</subscript> single crystal films were prepared on c-plane sapphire substrates using pulsed laser deposition and post-annealing methods. For the as-grown sample at 700 °C, post-annealing at 700 °C resulted in a significant improvement in the crystalline quality of the single crystal films, while post-annealing at 800 °C led to decomposition of ZnSnO<subscript>3</subscript>. Compared with the amorphous and mixed crystal ZnSnO<subscript>3</subscript>-based photodetectors (PDs), the single crystal ZnSnO<subscript>3</subscript>-based PD has a better light-to-dark current ratio (1.32 × 10<superscript>6</superscript>) and higher responsivity (8.71 A/W) at 5 V under 254-nm UV (1.1 mW/cm<superscript>2</superscript>) illumination. Such a good performance serves as resounding validation of the remarkable potential of ZnSnO<subscript>3</subscript> epitaxial films in the context of solar-blind PDs. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 124
- Issue :
- 12
- Database :
- Complementary Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 176229817
- Full Text :
- https://doi.org/10.1063/5.0188926