Open AccessOptimized photoacoustic gas-microphone cell for semiconductor materials thermal conductivity monitoring
Author(s) -
Pavlo Lishchuk
Publication year - 2021
Publication title -
fìzika ì hìmìâ tverdogo tìla
Language(s) - English
Resource type - Journals
eISSN - 2309-8589
pISSN - 1729-4428
DOI - 10.15330/pcss.22.2.321-327
Subject(s) - thermal conductivity , materials science , semiconductor , doping , photoacoustic imaging in biomedicine , thermal , conductivity , heat transfer , thermal conductivity measurement , monocrystalline silicon , thermal effusivity , silicon , optoelectronics , photoacoustic effect , semiconductor device , composite material , thermal resistance , thermal contact conductance , optics , thermodynamics , chemistry , physics , layer (electronics)
An approach for examination of semiconductor materials thermal conductivity based on the photoacoustical (PA) experimental results has been considered. Attention is drawn to the importance of PA cell design and normalization procedure that must be carried out in order to remove the parasitic signal caused by the PA cell effects as well as a contribution from the electronic components. The proposed technique makes it possible to quickly and reliably diagnose the thermal conductivity of various semiconductors materials for a better understanding of the heat transfer there for various technological applications. To test the methodology, thermal conductivity of monocrystalline silicon with different doping level was considered. The obtained dependence of thermal conductivity on the doping level is in a good agreement with well-known literature data. Thus, the results obtained in this work are important from a practical point of view.