Scanning thermal microscopy techniques for polymeric thin films using temperature contrast mode to measure thermal diffusivity and a novel approach in conductivity contrast mode to the mapping of thermally conductive particles

Dawson, Angela; Rides, M; Maxwell, A S; Cuenat, Alexandre; Samano, A.

doi:10.1016/j.polymertesting.2014.11.008

Cited by 14 publications

(7 citation statements)

References 21 publications

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“…The speed at which heat is transported through a material is defined as thermal diffusivity (Dawson et al 2015).…”

Section: Laser Flash Methodsmentioning

confidence: 99%

“…Ideally, electrical percolation at the smallest possible loading of CNTs is desired, yet this can be made nondesirable by polymer encapsulation. Four main techniques have been applied in measuring heat conductivity including scanning thermal microscopy (STM), hot-wire method, laser flash, and heat conductivity from the dynamic response of the differential scanning calorimeter (Dawson et al 2015).…”

Section: Synergistic Enhancement Of Thermal Conductivity Of Graphene-mentioning

confidence: 99%

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Recently emerging trends in thermal conductivity of polymer nanocomposites

Idumah

Hassan²

2016

Reviews in Chemical Engineering

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Due to escalating power densities in electronics, information, communication, energy storage, aerospace, and automobile technologies, heat dissipation has become immensely essential for the efficient performance and reliability of photonic, electronics, optoelectronics, and other devices in order to proactively prevent premature failure due to overheating. The functionalization and synergistic inclusion of thermally conducting nanoparticles such as carbon derivatives and metallic and ceramic fillers into polymer matrices have resulted in development of thermally conducting polymer nanocomposites. This has enlarged the scope of application of these materials in areas hitherto restricted due to poor thermal conductivity and, therefore, opened broad windows of opportunities for polymer nanocomposites as emerging alternative replacements for metal components in various applications where effective heat dissipation is compulsory for device performance. Thus, this paper critically discusses globally emerging technologies applied in the development of thermally conductive polymer nanocomposites for various industrial applications.

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“…The speed at which heat is transported through a material is defined as thermal diffusivity (Dawson et al 2015).…”

Section: Laser Flash Methodsmentioning

confidence: 99%

Section: Synergistic Enhancement Of Thermal Conductivity Of Graphene-mentioning

confidence: 99%

Recently emerging trends in thermal conductivity of polymer nanocomposites

Idumah

Hassan²

2016

Reviews in Chemical Engineering

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“…By calibrating the probe tip temperature and cantilever deflection against curves of three known melting temperature samples, the authors determined that the higher crystalline structure leads to higher melting temperature. The thermal diffusivity of thin films of polyamide‐imide could be scanned by flash method in TCM of SThM and their thermal conductivity in CCM of SThM . Composites or laminates of polymers are also of great interest.…”

Section: Applicationsmentioning

confidence: 99%

A Review on Principles and Applications of Scanning Thermal Microscopy (SThM)

Zhang

Zhu

Hui

et al. 2019

Adv Funct Materials

137

106

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As the size of materials, particles, and devices shrinks to nanometer, atomic, or even quantum scale, it is more challenging to characterize their thermal properties reliably. Scanning thermal microscopy (SThM) is an emerging method to obtain local thermal information by controlling and monitoring probe-sample thermal exchange processes. In this review, key experimental and theoretical components of the SThM system are discussed, including thermal probes and experimental methods, heat transfer mechanisms, calibration strategies, thermal exchange resistance, and effective heat transfer coefficients. Additionally, recent applications of SThM to novel materials and devices are reviewed, with emphasis on thermoelectric, biological, phase change, and 2D materials.

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“…Very significantly, its ability to perform relevant measurements of thermal transport in ambient conditions, that has been a limiting factor for other SThM probes 12 , render PdRPs as the mainstream probe for nanothermal characterization, they have been used extensively for a variety of applications from biological studies 13,14 to soft matter 15 and condensed matter sciences [16][17][18] .…”

Section: Introductionmentioning

confidence: 99%

Improving accuracy of nanothermal measurements via spatially distributed scanning thermal microscope probes

Spiece

Evangeli

Lulla

et al. 2018

Journal of Applied Physics

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Advances in materials design and device miniaturization lead to physical properties that may significantly differ from the bulk ones. In particular, thermal transport is strongly affected when the device dimensions approach the mean free path of heat carriers. Scanning Thermal Microscopy (SThM) is arguably the best approach for probing nanoscale thermal properties with few tens of nm lateral resolution. Typical SThM probes based on a microfabricated Pd resistive probes (PdRP) using a spatially distributed heater and a nanoscale tip in contact with the sample, provide high sensitivity and operation in ambient, vacuum and liquid environments. Whereas some aspects of the response of this sensor has been studied, both for static and dynamic measurements, here we build an analytical model of the PdRP sensor taking into account finite dimensions of the heater that improves the precision and stability of the quantitative measurements. In particular we analyse the probe response for heat flowing through a tip to the sample and due to probe self-heating and theoretically and experimentally demonstrate that they can differ by more than 50%, hence introducing significant correction in the SThM measurements. Furthermore, we analyzed the effect of environmental parameters such as sample and microscope stage temperatures, and laser illumination, allowed to reduce the experimental scatter by a factor of 10. Finally, varying these parameters, we measured absolute values of heat resistances and compared these to the model for both ambient and vacuum SThM operation, providing a comprehensive pathway improving the precision of the nanothermal measurements in SThM.

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Scanning thermal microscopy techniques for polymeric thin films using temperature contrast mode to measure thermal diffusivity and a novel approach in conductivity contrast mode to the mapping of thermally conductive particles

Cited by 14 publications

References 21 publications

Recently emerging trends in thermal conductivity of polymer nanocomposites

Recently emerging trends in thermal conductivity of polymer nanocomposites

A Review on Principles and Applications of Scanning Thermal Microscopy (SThM)

Improving accuracy of nanothermal measurements via spatially distributed scanning thermal microscope probes

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