Performance evaluation of direct electrification devices by using nanoparticles between parallel metal electrodes

By depositing a resin, which is consist of dispersed metallic nanoparticles in an inert matrix material, between two parallel metal electrodes with different work functions, our previous work experimentally demonstrated a fully solid-state device for direct electrification from low grade heat. The device exhibited improved output power compared to the devices based on a liquid matrix. For better understanding underlying physics of the fully solid-state device as well as to explore its potential applications, electrical characteristic, load capacity, etc. of the device were investigated and evaluated for the duration of a few weeks, particularly at near environmental temperatures. In this paper, the latest evaluation results will be presented in detail and discussed herein, along with an application example of powering a LED light by using 4 pieces of 4layer stacked devices.