Abstrakt:
In this work a thermal characterization (measurement of dynamic thermal parameters) of quaternary Zn1-x-yBexMnySe mixed crystals was carried out. The crystals under investigation were grown from the melt by the modified high pressure Bridgman method with different Be and Mn content. The effect of Be and Mn content on thermal properties of Zn1-x-yBexMnySe compounds was analyzed, by using the photopyroelectric (PPE) method in the back configuration (BPPE) for thermal diffusivity measurements, and the PPE technique in the front configuration (FPPE) for thermal effusivity investigations. Infrared lock-in thermography (IRT) was used in order to validate the BPPE results. The measured thermal effusivity and diffusivity allowed the calculation of thermal conductivity of the investigated materials.
