Design and performance analysis of ZnO nanorods/MoS2/p-Si piezo-photovoltaic energy harvester

In this paper, a novel ZnO nanorods/MoS2 /p-Si thin-film structure which exhibits high device current density due to piezotronics impact of polarization charges with the light intensity of 100mWcm-2 has been discussed. A comprehensive coverage of modeling, simulation, fabrication, and experimental assessment of the Piezo-Photovoltaic energy harvester that exploits the external mechanical energy alongside electro-magnetic radiation range between 200 nm and 900 nm has been enunciated. The geometry of the structure has been designed optimally to achieve the best piezo and photovoltaic performances using modelling and simulation studies. The various layers of the proposed structure have been deposited using RF-magnetron sputtering and thermal evaporation process techniques and tested under AM 1.5 G. The piezotronics offers to tune the charge control by the influence of strain and creates the piezo current. The piezo effect increases the short circuit current density by 2 % resulting in 30.6 mAcm-2 with a compressive pressure of 100kPa. The proposed structure exhibits improved efficiency of 28.86 % due to combined piezo and photovoltaic effects.(c) 2022 Elsevier B.V. All rights reserved.

Automated summary

This paper discusses a novel ZnO nanorods/MoS2/p-Si thin-film structure that exhibits high device current density due to the piezotronics impact of polarization charges with a light intensity of 100mWcm-2. The geometry of the structure was optimally designed to achieve the best piezo and photovoltaic performances through modeling and simulation studies. The various layers of the structure were deposited using RF-magnetron sputtering and thermal evaporation techniques, and tested under AM 1.5 G. The proposed structure exhibits an improved efficiency of 28.86% due to the combined piezo and photovoltaic effects.