The 3ω technique for measuring dynamic specific heat and thermal conductivity of a liquid or solid

Moon, Il; Jeong, Y. H.; Kwun, Sook‐Il

doi:10.1063/1.1146545

Cited by 116 publications

(71 citation statements)

References 13 publications

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“…This may originate from the capacitive effect of the connecting wires [22]. This will affect the specific heat value (planar regime) [23] but does not change the linear part used to determined the thermal conductivity.We have performed integral calculations using Simpson quadrature combined with simplex or non linear parameter estimation methods to find thermal properties of Alq3 thin film and substrate. We did not use the differential method to determine the thermal conductivity of the thin film because of a problem of parallelism between in phase diagrams obtained with and without the film.…”

Section: Out Of Phasementioning

confidence: 99%

Thermal conductivity of organic semi-conducting materials using 3omega and photothermal radiometry techniques

Reisdorffer

Garnier

Horny

et al. 2014

EPJ Web of Conferences

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Abstract. Organic semiconductors for opto-electronic devices show several defects which can be enhanced while increasing the operating temperature. Their thermal management and especially the reduction of their temperature are of great interest. For the heat transfer study, one has to measure the thermal conductivity of thin film organic materials. However the major difficulty for this measurement is the very low thickness of the films which needs the use of very specific techniques. In our work, the 3-omega and photothermal radiometric methods were used to measure the thermal conductivity of thin film organic semiconducting material (Alq3). The measurements were performed as function of the thin film thickness from 45 to 785 nm and also of its temperature from 80 to 350 K. With the 3 omega method, a thermal conductivity value of 0.066 W.m −1 K −1 was obtained for Alq3 thin film of 200 nm at room temperature, in close agreement with the photothermal value. Both techniques appear to be complementary: the 3 omega method is easier to implement for large temperature range and small thicknesses down to a few tens of nanometers whereas the photothermal method is more suitable for thicknesses over 200nm since it provides additional information such as the thin film volumetric heat capacity.

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Section: Out Of Phasementioning

confidence: 99%

Thermal conductivity of organic semi-conducting materials using 3omega and photothermal radiometry techniques

Reisdorffer

Garnier

Horny

et al. 2014

EPJ Web of Conferences

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show abstract

“…The 3ω technique, introduced for the first time by Cahill, has been widely used for the characterization of dielectric thin films (Cahill, 1990;Franck et al, 1993;Moon et al, 1996). The adaptation of the method for liquids is relatively recent (Chen et al, 2004;Heyd et al, 2008;Oh et al, 2008;S.…”

Section: ω Technique 3531 Presentationmentioning

confidence: 99%

Nanofluids for Heat Transfer

Heyd¹

2011

Two Phase Flow, Phase Change and Numerical Modeling

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“…Also, Moon and Jeong [7] and Birge [8] used the 3ω voltage to measure the heat capacities of liquids near the glass-transition temperature. Lee [9] measured the thermal conductivity of air with the three-omega method based on the solution of Chen et al [10] which includes wire properties.Studies related to application of the three-omega method to measurement of gas-phase properties are very scarce in the literature.…”

Section: Introductionmentioning

confidence: 99%

Application of the Three-Omega Method to Measurement of Thermal Conductivity and Thermal Diffusivity of Hydrogen Gas

et al. 2009

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Preliminary investigations have been conducted to discuss the possibility of measuring the thermal conductivity of hydrogen gas by the three-omega method. A one-dimensional analytical solution for the 3ω component is derived which includes the effect of the wire heat capacity. It is shown that it is very important to take into account the wire heat capacity in the calculation to measure the thermal conductivity of gas by the three-omega method. In contrast, the wire heat capacity is less important for the thermal conductivity of the liquid or solid phase.123 398 Int J Thermophys (2009) 30:397-415 wire heat capacity is found to increase with increasing frequency and decrease if the sample thermal conductivity is high. In order to measure the thermal conductivity of hydrogen gas at atmospheric pressure, a wire of diameter less than 1 µm is necessary if the properties of the wire are to be neglected.

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The 3ω technique for measuring dynamic specific heat and thermal conductivity of a liquid or solid

Cited by 116 publications

References 13 publications

Thermal conductivity of organic semi-conducting materials using 3omega and photothermal radiometry techniques

Thermal conductivity of organic semi-conducting materials using 3omega and photothermal radiometry techniques

Nanofluids for Heat Transfer

Application of the Three-Omega Method to Measurement of Thermal Conductivity and Thermal Diffusivity of Hydrogen Gas

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