Grain size impact of ZnO nanoparticles on the structural, and electrical properties in the low-density polyethylene

Abstract

In this study, low-density polyethylene (LDPE) was employed as a basic polymer. The ZnO particles of the polymer had a 20 nm diameter. The influence of the density of ZnO nanoparticles (NPs) on their structural and electrical properties was measured to examine the average grain size, resistivity, and energy band gap. The ZnO/LDPE nanopolymer was prepared by spin coating, and the microstructure of its material was investigated using analytical scanning electron microscopy techniques (SEM). The microscopic experimental results showed that the ZnO particles were dispersed in the form of white dots in the LDPE polymer. Additionally, a sizeable number of pores was detected, which were influenced by the size and form of the grains. High (ohmic) relationships were shown by the voltage (V) against current (I) curves, the resistivity value (7.4 Ω).