Journal of Iranian Ceramic Society
Journal of Iranian Ceramic Society
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& Department of Advanced Materials and New Technologies, Iranian Research Organization for Science and Technology (IROST) , mrajabi@irost.ir
Abstract: (242 Views)
In this study, the synthesis and characterization of a piezo-phototronic ultraviolet (UV) photodetector device based on the FTO/ZnO@BaTiO3/FTO structure is investigated. Initially, ZnO nanorods, as the core of the structure, are synthesized on an etched FTO substrate using a hydrothermal method. Subsequently, a shell of BaTiO3 nanoparticle is formed using a novel vapor thermal method (VTM), which combines a sol-gel and hydrothermal process simultaneously. The crystal structure and morphology of the prepared samples are evaluated using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM), respectively. Based on the photodetection characterization results, the formation of a BaTiO3 shell on the ZnO nanorods resulted in a decrease in dark current from 7.7 to 3.7 µA, an increase in sensitivity from 13 to 24, and a decrease in response time from 120 to 20 s. Subsequently, by applying compressive forces with magnitudes of 1N and 4N, the responsivity of the core-shell ZnO@BaTiO3 samples increased from 22.4 to 39.6 and 47.9 mAW-1, respectively. The obtained results indicate that the fabricated device exhibits improvement in piezophototronic properties.
Type of Study: Research |
Subject:
Electrical, Optical and Magnetic Ceramics
Received: 2024/10/19 | Accepted: 2024/11/5
Received: 2024/10/19 | Accepted: 2024/11/5
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