scholarly journals Thermal characterization of morphologically diverse copper phthalocyanine thin layers by Scanning Thermal Microscopy

2021 ◽  
pp. 113435
Author(s):  
Dominika Trefon-Radziejewska ◽  
Justyna Juszczyk ◽  
Maciej Krzywiecki ◽  
Georges Hamaoui ◽  
Nicolas Horny ◽  
...  
1999 ◽  
Vol 39 (6-7) ◽  
pp. 1149-1152 ◽  
Author(s):  
G.B.M. Fiege ◽  
F.-J. Niedernostheide ◽  
H.-J. Schulze ◽  
R. Barthelmeß ◽  
L.J. Balk

2017 ◽  
Vol 232 ◽  
pp. 72-78 ◽  
Author(s):  
Dominika Trefon-Radziejewska ◽  
Justyna Juszczyk ◽  
Austin Fleming ◽  
Nicolas Horny ◽  
Jean Stéphane Antoniow ◽  
...  

2008 ◽  
Vol 153 (1) ◽  
pp. 151-154 ◽  
Author(s):  
J. Gibkes ◽  
M. Chirtoc ◽  
J. S. Antoniow ◽  
R. Wernhardt ◽  
J. Pelzl

Author(s):  
Yanliang Zhang ◽  
Liang Han ◽  
Theodorian Borca-Tasciuc

Scanning thermal microscopy (SThM) is an attractive tool for high spatial resolution thermal characterization with minimal sample preparation.1 SThM measurements are usually performed in contact-mode, which entails multiple tip-sample heat transfer pathways, i.e. across air gap, liquid meniscus, and the solid contact. These hinder the quantification of the sample temperature or thermal properties or result in large uncertainties.2


2019 ◽  
Vol 681 ◽  
pp. 178373 ◽  
Author(s):  
Katrin Fladischer ◽  
Verena Leitgeb ◽  
Lisa Mitterhuber ◽  
Günther A. Maier ◽  
Jozef Keckes ◽  
...  

2013 ◽  
Vol 44 (11) ◽  
pp. 1029-1034 ◽  
Author(s):  
Séverine Gomès ◽  
Pascal Newby ◽  
Bruno Canut ◽  
Konstantinos Termentzidis ◽  
Olivier Marty ◽  
...  

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Darshil U. Shah ◽  
Johannes Konnerth ◽  
Michael H. Ramage ◽  
Claudia Gusenbauer

Abstract Scanning thermal microscopy is a powerful tool for investigating biological materials and structures like bamboo and its cell walls. Alongside nanoscale topographical information, the technique reveals local variations in thermal conductivity of this elegant natural material. We observe that at the tissue scale, fibre cells in the scattered vascular tissue would offer preferential pathways for heat transport due to their higher conductivities in both anatomical directions, in comparison to parenchymatic cells in ground tissue. In addition, the transverse orientation offers more resistance to heat flow. Furthermore, we observe each fibre cell to compose of up to ten layers, with alternating thick and thin lamellae in the secondary wall. Notably, we find the thin lamellae to have relatively lower conductivity than the thick lamellae in the fibre direction. This is due to the distinct orientation of cellulose microfibrils within the cell wall layers, and that cellulose microfibrils are highly anisotropic and have higher conductivity along their lengths. Microfibrils in the thick lamellae are oriented almost parallel to the fibre cell axis, while microfibrils in the thin lamellae are oriented almost perpendicular to the cell axis. Bamboo grasses have evolved to rapidly deposit this combination of thick and thin layers, like a polymer composite laminate or cross-laminated timber, for combination of axial and transverse stiffness and strength. However, this architecture is found to have interesting implications on thermal transport in bamboo, which is relevant for the application of engineered bamboo in buildings. We further conclude that scanning thermal microscopy may be a useful technique in plant science research, including for phenotyping studies.


Holzforschung ◽  
2016 ◽  
Vol 70 (4) ◽  
pp. 323-330 ◽  
Author(s):  
Deliang Xu ◽  
Yang Zhang ◽  
Handong Zhou ◽  
Yujie Meng ◽  
Siqun Wang

Abstract The penetration characteristics of phenol formaldehyde (PF) resin, modified by two different nanomaterials (PFmod), has been studied by means of scanning thermal microscopy (SThM). The thermal conductivity (ThC) of the two PFmod was lower than that of the cell wall (CW), but the ThC of both PF resins was basically the same. SThM imaging revealed the penetration of parts of PFmod into the CW by a ThC transitional region, which exists between the CW and the resin. In the transitional zone, the ThC changed obviously in a region about 2 μm in width. This region includes two subregions, one about 0.7 μm and another 1.3 μm in width. The first one is the interface, where PFmod and the CW are in direct contact where the ThC changes rapidly. In the second subregion, the PFmod and CW are in interaction, and ThC changes slowly. Regarding the adhesives’ penetration into the cell lumen, the ThC of the penetrating adhesive was higher than that in the glue line, and this is an indication that SThM is a useful tool to detect the differences of adhesive penetration at the micro-scale level.


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