TY - JOUR
T1 - Optomechanical methodology for characterizing the thermal properties of 2D materials
AU - Liu, Hanqing
AU - Brahmi, Hatem
AU - Boix-Constant, Carla
AU - van der Zant, Herre S.J.
AU - Steeneken, Peter G.
AU - Verbiest, Gerard J.
PY - 2024
Y1 - 2024
N2 - Heat transport in two dimensions is fundamentally different from that in three dimensions. As a consequence, the thermal properties of 2D materials are of great interest, from both scientific and application points of view. However, few techniques are available for the accurate determination of these properties in ultrathin suspended membranes. Here, we present an optomechanical methodology for extracting the thermal expansion coefficient, specific heat, and thermal conductivity of ultrathin membranes made of 2H-TaS2, FePS3, polycrystalline silicon, MoS2, and WSe2. The obtained thermal properties are in good agreement with the values reported in the literature for the same materials. Our work provides an optomechanical method for determining the thermal properties of ultrathin suspended membranes, which are difficult to measure otherwise. It provides a route toward improving our understanding of heat transport in the 2D limit and facilitates engineering of 2D structures with a dedicated thermal performance.
AB - Heat transport in two dimensions is fundamentally different from that in three dimensions. As a consequence, the thermal properties of 2D materials are of great interest, from both scientific and application points of view. However, few techniques are available for the accurate determination of these properties in ultrathin suspended membranes. Here, we present an optomechanical methodology for extracting the thermal expansion coefficient, specific heat, and thermal conductivity of ultrathin membranes made of 2H-TaS2, FePS3, polycrystalline silicon, MoS2, and WSe2. The obtained thermal properties are in good agreement with the values reported in the literature for the same materials. Our work provides an optomechanical method for determining the thermal properties of ultrathin suspended membranes, which are difficult to measure otherwise. It provides a route toward improving our understanding of heat transport in the 2D limit and facilitates engineering of 2D structures with a dedicated thermal performance.
UR - http://www.scopus.com/inward/record.url?scp=85186124092&partnerID=8YFLogxK
U2 - 10.1063/5.0190680
DO - 10.1063/5.0190680
M3 - Article
AN - SCOPUS:85186124092
SN - 2166-532X
VL - 12
JO - APL Materials
JF - APL Materials
IS - 2
M1 - 021126
ER -