Ultraviolet Photodetector based on Sr2Nb3O10 Perovskite Nanosheets

Liquid-phase exfoliation was employed to synthesize Sr 2 Nb 3 O 10 perovskite nanosheets with thicknesses down to 1.76 nm. Transmission electron microscopy (TEM), atomic force microscope (AFM), X-ray photoelectron spectrometer (XPS), and other characterization techniques were used to evaluate the at...

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Veröffentlicht in:	Journal of Wuhan University of Technology. Materials science edition 2024-04, Vol.39 (2), p.282-287
Hauptverfasser:	Zhang, Binbin, Jia, Mengmeng, Liang, Qi, Wu, Jinsong, Zhai, Junyi, Li, Baowen
Format:	Artikel
Sprache:	eng
Schlagworte:	Advanced Materials Atomic structure Chemical composition Chemistry and Materials Science Exfoliation Liquid phases Materials Science Nanosheets Perovskites Photoelectric effect Photoelectric emission Photoelectrons Photometers Thickness Ultraviolet detectors X ray photoelectron spectroscopy
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Zusammenfassung:	Liquid-phase exfoliation was employed to synthesize Sr 2 Nb 3 O 10 perovskite nanosheets with thicknesses down to 1.76 nm. Transmission electron microscopy (TEM), atomic force microscope (AFM), X-ray photoelectron spectrometer (XPS), and other characterization techniques were used to evaluate the atomic structure and chemical composition of the exfoliated nanosheets. A UV photodetector based on individual Sr 2 Nb 3 O 10 nanosheets was prepared to demonstrate the application of an ultraviolet (UV) photodetector. The UV photodetector exhibited outstanding photocurrent and responsivity with a responsivity of 3 × 10 5 A·W −1 at 5 V bias under 280 nm illumination, a photocurrent of 60 nA, and an on/off ratio of 3 × 10 2 .
ISSN:	1000-2413 1993-0437
DOI:	10.1007/s11595-024-2881-y