Awsaf AlSulami1,Faisal Alamri1,Majed Alharbi1,Abrar Alhazmi1,Olaiyan Alolaiyan1,Abdullah Alrasheed1,Khalid Alhamdan1,Kin Wong2,Moh R. Amer1,2
King Abdulaziz City for Science and Technology (KACST)1,University of California, Los Angeles2
Awsaf AlSulami1,Faisal Alamri1,Majed Alharbi1,Abrar Alhazmi1,Olaiyan Alolaiyan1,Abdullah Alrasheed1,Khalid Alhamdan1,Kin Wong2,Moh R. Amer1,2
King Abdulaziz City for Science and Technology (KACST)1,University of California, Los Angeles2
Layered 2-Dimensional (2D) materials are attractive for various nanoscale unique properties. Nonetheless, many of these materials' properties are still unknown. In this work, we study the thermal properties of Zirconium-based TMDs (ZrSe<sub>2</sub>, ZrS<sub>2</sub>, ZrSe<sub>3</sub>, ZrS<sub>3</sub>). These materials are promising, especially in space and high-temperature applications, due to their high ZT parameter (>0.8). We investigated Raman thermal and laser power dependence factors using the thermal Linkam stage and different ND filters to construct the heat diffusion model. This model extracted the thermal properties (thermal conductivity k, thermal interface conductance g, and thermal resistance R<sub>th</sub>). Throughout this study, we observed that Raman peaks of 2D Zirconium-based materials could be entirely different for the same nanosheets. These Raman modes have been found to depend on the material's crystallinity and showed characteristic anisotropic behavior.