The continued depletion of fossil fuel-based energy resources is leading us towards a growing energy crisis. Consequently, this has set in motion a search for sustainable alternative resources. Thermoelectric energy conversion—a process of generating electricity from waste heat—has gained momentum as the next potential energy harvesting technology. Generators made up of thermoelectric materials are used to harvest thermal energy via the "Seebeck effect." The temperature difference in the thermoelectric material creates a flow of charge carriers, generating electrical energy.