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  Alkanes as intelligent surface thermometers : a facile approach to characterize short-lived temperature gradients on the micrometer scale

Eickelmann, S., Ronneberger, S., Zhang, J., Paris, G., & Löffler, F. F. (2021). Alkanes as intelligent surface thermometers: a facile approach to characterize short-lived temperature gradients on the micrometer scale. Advanced Materials Interfaces, 8(3): 2001626. doi:10.1002/admi.202001626.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0007-8BCF-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0007-E81A-7
Genre: Journal Article

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 Creators:
Eickelmann, Stephan1, Author              
Ronneberger, Sebastian1, Author              
Zhang, Junfang1, Author              
Paris, Grigori1, Author              
Löffler, Felix F.1, Author              
Affiliations:
1Felix Löffler, Biomolekulare Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2385692              

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Free keywords: laser heating, phase-transition, rupture, surface thermometers, temperature sensors
 Abstract: Short-lived micro-sized thermal gradients are challenging to measure. Especially, in thin film processes and devices, it is important to know the exact temperature profile to assure process parameters and the stability of sensitive materials. Many theoretical models try to describe the occurring temperatures, but still lack in profound experimental data. Here, a facile approach is presented, which allows to measure confined temperature gradients with millisecond and micrometer precision. By casting a thin alkane film onto a substrate of interest, it is possible to reconstruct local temperature gradients by imaging the phase behavior and morphology of the alkane film with a simple optical microscope setup. Alkanes are inert and their melting and boiling temperatures depend on the chain length. This allows to measure temperatures between 37 and 522 °C on any surface. Furthermore, after thorough characterization of laser-induced temperature gradients, this approach can be used to measure the phase transition behavior of complex thin film polymer mixtures.

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Language(s): eng - English
 Dates: 2020-12-092021
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1002/admi.202001626
BibTex Citekey: https://doi.org/10.1002/admi.202001626
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Title: Advanced Materials Interfaces
  Abbreviation : Adv. Mater. Interfaces
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 8 (3) Sequence Number: 2001626 Start / End Page: - Identifier: ISSN: 2196-7350