Defect-Mediated Self-Powered Ultraviolet Photodetection of Chemically Tailored Tin-Oxide Nanoparticles

We have reported about the synthesis of tin oxide (SnO 2 ) nanoparticles using simple and low-cost hydrothermal method followed by fabrication of self-powered ultraviolet (UV) photodetectors (PDs). The structural and morphological characteristics of the nanoparticles have been analyzed with X-ray di...

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Bibliographic Details
Published in:Brazilian journal of physics 2023-12, Vol.53 (6), Article 141
Main Authors: Narzary, R, Chekke, Tani, Ngadong, S, Satpati, Biswarup, Bayan, S, Das, Upamanyu
Format: Article
Language:English
Subjects:
Condensed Matter
Defects
Nanoparticles
Open circuit voltage
Photometers
Physics
Physics and Astronomy
Tin dioxide
Tin oxides
Ultraviolet detectors
Ultraviolet radiation
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Summary:We have reported about the synthesis of tin oxide (SnO 2 ) nanoparticles using simple and low-cost hydrothermal method followed by fabrication of self-powered ultraviolet (UV) photodetectors (PDs). The structural and morphological characteristics of the nanoparticles have been analyzed with X-ray diffraction and electron microscopy techniques. In addition, the existence of native defects in SnO 2 has been realized from spectroscopic techniques. Further, it has been found that the nanoparticles can exhibit significant open-circuit voltage, and the observation of enhanced open-circuit voltage under illumination of UV light makes the system promising for self-powered (SP) photodetectors. The origin of the self-powered UV photodetection has been assigned to capturing of photogenerated carriers by the native defects of SnO 2 nanoparticles. The observation of self-power UV detection in such system can lead to the fabrication of futuristic UV detectors without bothering the existing issue of energy crisis.
ISSN:0103-9733
1678-4448
DOI:10.1007/s13538-023-01356-z