Theoretical calculation of the dispersion relation for polymeric thin films: Determination of the thermal diffusivity using photothermal microscopy

2003 ◽  
Vol 74 (1) ◽  
pp. 735-737 ◽  
Author(s):  
L. R. de Freitas ◽  
A. M. Mansanares ◽  
E. C. da Silva
Keyword(s):  
Thin Films ◽  
Thermal Diffusivity ◽  
Dispersion Relation ◽  
Theoretical Calculation ◽  
Polymeric Thin Films ◽  
Photothermal Microscopy

Photothermal methods for determination of thermal properties of bulk materials and thin films

Open Physics ◽  
2010 ◽  
Vol 8 (2) ◽  
Author(s):  
Jerzy Bodzenta ◽  
Anna Kaźmierczak-Bałata ◽  
Jacek Mazur
Keyword(s):  
Thin Films ◽  
Thermal Properties ◽  
Thermal Diffusivity ◽  
Heat Transport ◽  
Temperature Fields ◽  
Nonstationary Temperature ◽  
Measuring Techniques ◽  
Heat Transport Properties ◽  
Photothermal Methods

AbstractInformation on the thermal properties of materials is very important both in fundamental physical research and in engineering applications. The development of materials with desirable heat transport properties requires methods for their experimental determination. In this paper basic concepts of the measurement of parameters describing the heat transport in solids are discussed. Attention is paid to methods utilizing nonstationary temperature fields, especially to photothermal methods in which the temperature disturbance in the investigated sample is generated through light absorption. Exemplary photothermal measuring techniques, which can be realized using common experimental equipment, are described in detail. It is shown that using these techniques it is possible to determine the thermal diffusivity of bulk transparent samples, opaque and semi-transparent plate-form samples, and the thermal conductivity of thin films deposited on thick substrates. Results of the investigation of thermal diffusivity of the ground in the polar region, which is based on the analysis of the propagation of the thermal wave generated by sun-light, are also presented. Based on chosen examples one can state that photothermal techniques can be used for determination of the thermal properties of very different materials.

Determination of Thermal Diffusivity Coefficient of Thin Films by Thermal Square Wave Method

2011 ◽  
Vol 424 (1) ◽  
pp. 28-35 ◽  
Author(s):  
O. V. Malyshkina ◽  
A. A. Movchikova ◽  
O. N. Kalugina ◽  
A. V. Daineko
Keyword(s):  
Thin Films ◽  
Thermal Diffusivity ◽  
Diffusivity Coefficient ◽  
Wave Method ◽  
Square Wave ◽  
Thermal Diffusivity Coefficient

Scanning thermal probe microscope method for the determination of thermal diffusivity of nanocomposite thin films

2016 ◽  
Vol 87 (8) ◽  
pp. 084903 ◽  
Author(s):  
Deepak Varandani ◽  
Khushboo Agarwal ◽  
Juergen Brugger ◽  
Bodh Raj Mehta
Keyword(s):  
Thin Films ◽  
Thermal Diffusivity ◽  
Thermal Probe ◽  
Nanocomposite Thin Films ◽  
Probe Microscope
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