This paper considers the state-of-the-art and open scientific and technological questions in thermoelectric materials and devices, from phonon engineering and scattering methods, to new and complex materials and their thermoelectric behavior. The paper also describes recent approaches to create structural and compositional material systems designed to enhance the thermoelectric figure of merit and power factors. We also summarize and contextualize recent advances in the use of superlattice structures and porosity or roughness to influence phonon scattering mechanisms and detail some advances in integrated thermoelectric materials for generators and coolers for thermally stable photonic devices.
Bibliographical noteKAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was also supported by Science Foundation Ireland (SFI) through Technology Innovation and Development Awards 2013 and 2015 under contracts 13/TIDA/E2761 and 15/TIDA/2893. This publication has also emanated from research supported in part by a research grant from SFI under grant Number 14/IA/2581. This work has received funding from the European Union's Horizon2020 funded project “Thermally Integrated Smart Photonics Systems (TIPS)”, under the grant agreement No. 644453.