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dc.contributor.authorSHAKTI-
dc.contributor.authorBHARDWAJ, AADITYA-
dc.contributor.authorSingh, Bharti (supervisor)-
dc.contributor.authorGupta, Govind (co-supervisor)-
dc.date.accessioned2026-10-09T04:25:36Z-
dc.date.available2026-10-09T04:25:36Z-
dc.date.issued2026-05-
dc.identifier.urihttp://dspace.dtu.ac.in:8080/jspui/handle/repository/23178-
dc.description.sponsorshipThe development of decentralized self-powered electronics is a paradigm shift in the physics of modern devices by alleviating the bottleneck of dependence on batteries through har vesting ambient mechanical and optical energy. In this thesis, we explored a piezoelectric nanocomposite based on Bi2O3 and PVDF polymer, synthesized using a solution-mixing and drop-casting method, with exceptional output properties for nanogenerator applications. We also synthesized a self-powered photodetector of the same composite using Thermal Vapour Deposition. A comparative and novel study is performed to investigate the impact of Au NPs (gold nanoparticles) on the performance of the nanogenerator as well as under external mechanical loading. The synthesized nanocomposite films have a thickness of 50–70 µm. The FT-IR confirms the significant boost in electroactive phase of nanocomposites because of the incorporation of nanofillers. The SEM, FE-SEM confirms the successful synthesis of the nanocomposite structure corresponding to the β phase of PVDF. Elemental mapping using EDX also confirms the presence of Bi, Au, C, and O. Dielectric and P-E measure ments confirm the ternary composite has the best storage capacity and least dielectric loss. The nanogenerator with Au-NPs/Bi2O3/PVDF mixture having 5% Bi2O3 of total PVDF and with doping of 500 µL of Au-NPs exhibits an enhanced output performance achieving an open circuit voltage of 48.4 V and an output power of 400 µW at a load resistance of 1 MΩ using the electrodynamic shaker device at a frequency of 9 Hz. The piezoelectric device is successfully used as a sensor for Morse code generation. The zero biased time-dependent I-T measurement reveals the self-powered nature of our Nanocomposite upon illumination with 355 nm, 455 nm, and 532 nm lasers.en_US
dc.language.isoenen_US
dc.relation.ispartofseriesTD-9267;-
dc.subjectAu-NPs/Bi2O3/PVDF NANOCOMPOSITEen_US
dc.subjectPIEZOELECTRIC NANOGENERATORen_US
dc.subjectSELF-POWERED PHOTODETECTORen_US
dc.titleSYNTHESIS AND CHARACTERIZATIONOF Au-NPs/Bi2O3/PVDF NANOCOMPOSITE FOR PIEZOELECTRIC NANOGENERATOR AND SELF-POWERED PHOTODETECTORen_US
dc.typeThesisen_US
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