So I am in the process of desgining a scalable Triboelectric Nanogenerator(TENG) through which I can easily harvest and store electricity in a battery or a capacitor. A TENG can be modelled as voltage source and a capcitor and can be illustrated as below.
The problem with this model is that it has a very high impedance and for maximum power transfer we need impedance matching. One idea that I had is using coupling inductances (transformer action) to bring down the voltage and upscale the current so that the Impedance on the load side is reflected as Z/n^2.
I am not sure that this technique will work.
After rectifying this low frequency AC generated I have found some energy harvesters by linear technology but they are pretty expensive and keeping the costs low is the main goal as for now. Here are the links of the two that I found.
What factors beside the costs should I need to keep in mind in order to decide which of these devices would better suit my need. Also what would be the modular breakdown of such a nano energy harvester so that I can design it for my self.