Halide Perovskites: Thermal Transport and Prospects for Thermoelectricity. Issue 10 (16th April 2020)

• Record Type: Journal Article
• Authors: Haque, Md Azimul; Kee, Seyoung; Villalva, Diego Rosas; Ong, Wee‐Liat; Baran, Derya
• Is Part Of: Advanced science. Volume 7:Issue 10(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-04-16
• Subjects: halide perovskites -- hybrids -- perovskites -- phonons -- thermal transport -- thermoelectrics; Science -- Periodicals; 505
• DOI: 10.1002/advs.201903389
• Languages: English
• ISSNs: 2198-3844

Abstract

Abstract: The recent re‐emergence of halide perovskites has received escalating interest for optoelectronic applications. In addition to photovoltaics, the multifunctional nature of halide perovskites has led to diverse applications. The ultralow thermal conductivity coupled with decent mobility and charge carrier tunability led to the prediction of halide perovskites as a possible contender for future thermoelectrics. Herein, recent advances in thermal transport of halide perovskites and their potentials and challenges for thermoelectrics are reviewed. An overview of the phonon behavior in halide perovskites, as well as the compositional dependency is analyzed. Understanding thermal transport and knowing the thermal conductivity value is crucial for creating effective heat dissipation schemes and determining other thermal‐related properties like thermo‐optic coefficients, hot‐carrier cooling, and thermoelectric efficiency. Recent works on halide perovskite‐based thermoelectrics together with theoretical predictions for their future viability are highlighted. Also, progress on modulating halide perovskite‐based thermoelectric properties using light and chemical doping is discussed. Finally, strategies to overcome the limiting factors in halide perovskite thermoelectrics and their prospects are emphasized. Abstract : Halide perovskites exhibit ultralow thermal conductivity and intriguing phononic behavior. This work elucidates the thermal transport behavior in halide perovskites and highlights their potentials and challenges for thermoelectric application.