The superior thermal conductivity of single crystal diamond (20 W/cm/K at room temperature for type IIa diamond) makes diamond desirable for many applications requiring the dissipation of heat. Several experimental methods have been used to determine whether chemical vapor deposited (CVD) diamond has a comparable thermal conductivity. Values as high as 10 W/cm/K have been measured. In this paper we discuss the use of photothermal radiometry to measure the thermal diffusivity and conductivity of CVD diamond.
H. P. R Frederikse,
X. T. Ying,
"Thermal Wave Measurements Of The Thermal Properties Of CVD Diamond", Proc. SPIE 1146, Diamond Optics II, (15 January 1989); doi: 10.1117/12.962064; https://doi.org/10.1117/12.962064