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This paper reports the performance of the flexible nanogenerator as a green energy harvester depends on connection variation. The ZnO nanogenerator was successfully fabricated on Al/PET. The ZnO Nanorods were synthesized using a hydrothermal method at 95°C. The ZnO Nanorods were characterized using x-ray diffraction (XRD), scanning electron microscopy (SEM), fourier transforms infrared spectroscopy (FTIR), and UV-Vis spectrophotometer. The performance of the nanogenerator was performed using Osiloscop and electrometer in series and parallel connection. Based on the XRD pattern, ZnO sample has a hexagonal (wurtzite) crystal structure in which the lattice parameters of a = b, and c = 3.258 Å, and 5.218 Å, respectively. The morphology of ZnO is a hexagonal form with diameters of 81,06 nm to 467.69 nm and rod length around 595 nm to 1331 nm. Based on the FTIR spectra, there are Zn-O bonds at 435-445 cm-1, 535 cm–1 and, 541 cm-1. Moreover, ZnO nanorods have an energy gap band of 3.2 eV. The performance of the ZnO nanogenerator in series form has the highest voltage with a value of 10.36 volts AC, and the voltage value in dual-source is more than ten times larger compared to a single source.

Dependence on the need for electrical energy on PLN will undoubtedly require a high cost. Energy independence around the PPPI Al-Ittihad hut as a partner can minimize expenses and realize an Islamic life based on information technology and independence in energy. This problem has prompted the Malang State University community service team to install solar panels at PPPI Al-Ittihad based on smart PLTS that can be monitored in real-time. This installation serves as a source of electrical energy to meet the electricity needs of PPPI Al-Ittihad. Community service is carried out by observing, calculating load requirements, making designs, installing solar cell systems, and installing solar panel systems. The electricity generated by the smart PLTS is used for the daily needs of PPPI Al-Ittihad. Besides that, the PLTS could be the renewable energy learning media for students and IoT-based information technology. The installation of PLTS is very useful for PPPI Al-Ittihad, which has a daily power load of 4 kWh to reduce the estimated cost of electricity consumption which previously depended on PLN.Mufti, dkk.

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