International Journal of Electrical and Electronics Research (IJEER) Open Access | Rapid and quality publishing Research Article | Volume 10, Issue 4 | Pages 954-957 | e-ISSN: 2347-470X 954 Website: www.ijeer.forexjournal.co.in Modeling of ZnO Nano-rods on Paper Substrate for Energy Harvesting ░ ABSTRACT- Nano devices are used for energy generation, storing, and harvesting. Among other metal oxides, ZnO shows high performance in piezoelectric energy generation. In this work, the analysis of the parameter dependency of the amount of energy generated for a piezoelectric material on a paper flexible substrate is done. The load is applied in the shape of lines and alphabets. It is found that the displacement is directly proportional to the generated energy. The role of surface area in producing energy and the distribution of pressure with respect to material strength are added. General Terms: Material, metal oxides, pattern recognition, piezo electrical energy, pressure. Keywords: Energy harvesting, flexible substrate, force, piezoelectric, stress, ZnO Nano-rods. ░ 1. INTRODUCTION The need for generating non-conventional energy is rapidly growing due to global warming as a primary alarming factor for the human race. The energy generating setup is expected to be environmentally friendly, smaller in size, with low power consumption and a simple structure [1]. Femy P. H. and Jayakumar J., in their work, proposed [2] an integrated solar and wind renewable energy source for an electric vehicle. The benefits of environmentally friendly EVs (electric vehicles) that will support the energy needs and the storage systems in transportation are reviewed by [3]. The RF energy harvester proposed by [4] defeats the challenge of nonlinear behavior of rectifying diode in the harvesting circuit. This was achieved by implementing matching network designed with and without parallel capacitance. Power is generated from common human activities like blood pressure, arm motion, and body temperature. A power of 7W was reported in testing a human weighing 154 pounds [5]. The piezoelectric device using nanorods of metal oxides will be the answer to all the above challenges. Moreover, it is not affected by any electromagnetic interference and the electromechanically coupled design model performs well in different configurations. A piezoelectric device has the ability to convert mechanical energy to electrical energy and vice versa [6]. Small and miniature devices are expected to fulfil their power requirements by themselves by self-powering [7] instead of using a supporting battery system. In comparison to other non- renewable energy resources, the range of piezoelectric energy produced is broad [8]. Further, the initial cost is also higher for sources like solar and wind energy production [9]. As a better replacement, the piezoelectric material produces energy with metal oxide nanorods [10]. In particular, it is zinc oxide nanorods that excel in their performance compared to their counterparts [11] and [12]. In addition to this discussion, the substrate materials play a vital role in energy generation. If the substrate is flexible and economical, then the application becomes abundant [13]. Flexible materials, such as cloth, rubber, metal foils, and paper, aid in energy conversion more than hard substrates. Modeling and simulation optimise the design for developing the device [14] and [15]. In particular, zinc oxide is preferred for its direct wide band gap (3.33eV). This property helps with current flow at room temperature [16]. This paper is a study of the displacement, polarization, and energy generated on zinc oxide nanorods through simulation by the finite element method. ░ 2. METHODOLOGY The typical construction of the device model is demonstrated as in figure 1. Forest of ZnO Nano-rods is developed and grown between flexible plastic-coated paper substrate. The objective of this work is to observe, measure, and analyse the energy generated from the piezoelectric effect. Plastic coated paper ZnO nanorods Plastic coated paper Fig. 1: Schematic diagram of the piezoelectric device model Modeling of ZnO Nanorods on Paper Substrate for Energy Harvesting Geetha P Professor, Department of Electronics and Communication Engineering, Sree Vidyanikethan Engineering College, Tirupati, India, mailpgeetha2013@gmail.com *Corresponding Author: Geetha P; mailpgeetha2013@gmail.com ARTICLE INFORMATION Author(s): Geeta P; Received: 25/06/2022; Accepted: 30/09/2022; Published: 10/11/2022; E- ISSN: 2347-470X; Paper Id: IJEER220635; Citation: 10.37391/IJEER.100433 Webpage-link: https://ijeer.forexjournal.co.in/archive/volume-10/ijeer-100433.html Publisher’s Note: FOREX Publication stays neutral with regard to jurisdictional claims in Published maps and institutional affiliations.