ABSTRACT
This chapter reports the use of the dual-beam thermal lens technique as a quantitative method to determine thermal diffusivity and quenching of fluorescence emission from ZnO nano/microcolloidal solution incorporated with rhodamine 6G. It is a sensitive technique that has been applied for measurements of low absorption values in materials. The investigation shows that the size- and structure-dependent interfacial interaction between the ZnO clusters and mainly the Brownian motion influenced the thermal transport properties.
