Investigation on the Thermoelectric Properties of Copper Sulfide Based Composites for Waste Heat Recovery Applications

Abstract

Chapter 1 describes the brief introduction to the thermoelectric technology newlinewhich refers to its history, materials, challenges and recent development that had led to newlinecurrent trend of investigations. The various strategical approaches which were applied to newlinemany materials reported in order to increase thermoelectric performance with the review newlineof recently developed thermoelectric materials is discussed. In addition, the later part of newlinethis chapter provides insight into the introduction to and the development in the copper newlinesulfide (Cu1.8S) material based thermoelectric investigations with experimental results newlinereported previously. The final part of this chapter includes the problem statement, newlinestrategies to overcome and the corresponding objectives of the present thesis. newlineChapter 2 provides the details of the synthesis of Cu1.8S by solvothermal newlineprocedure followed by the process of densification of powders to pellet samples for the newlinemeasurement of thermoelectric properties. The fundamental characterizations used in newlineanalyzing the structural, compositional, and morphological features of the prepared newlinesamples were explained. The thermal stability and phase transition properties analyzed newlinewith the thermo-gravimetric and differential thermal analysis is explained. Van der Pauw newlinemethod-based Hall measurement of charge carrier concentration and mobility is newlinedescribed. Thermoelectric characterization with two parts of measurement containing newlineelectrical conductivity and Seebeck coefficient measurement with Advance Riko ZEM- newline3 and the thermal diffusivity with laser flash analytic technique (LFA467 HT) are newlinediscussed in this chapter newline