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Title:Accuracy of measurements of thermophysical parameters by dual-beam thermal-lens spectrometry
Authors:ID Khabibullin, Vladislav R. (Author)
ID Franko, Mladen (Author)
ID Proskurnin, Mikhail A. (Author)
Files:.pdf Accuracy_of_Measurements_of_Thermophysical_Parameters_by_Dual-Beam_Thermal-Lens_Spectrometry.pdf (9,88 MB)
MD5: 6F5E4D60FE0088A2DA26275A536BCBA0
 
URL https://www.mdpi.com/2079-4991/13/3/430
 
Language:English
Work type:Unknown
Typology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:Thermal-lens spectrometry is a sensitive technique for determination of physicochemical properties and thermophysical parameters of various materials including heterogeneous systems and nanoparticles. In this paper, we consider the issues of the correctness (trueness) of measurements of the characteristic time of the thermal-lens effect and, thus, of the thermal diffusivity determined by dual-beam mode-mismatching thermal lensing. As sources of systematic errors, major factors— radiation sources, sample-cell and detector parameters, and general measurement parameters—are considered using several configurations of the thermal-lens setups, and their contributions are quantified or estimated. Furthermore, with aqueous ferroin and Sudan I in ethanol as inert colorants, the effects of the intermolecular distance of the absorbing substance on the correctness of finding the thermophysical parameters are considered. The recommendations for checking the operation of the thermal-lens setup to ensure the maximum accuracy are given. The results obtained help reducing the impact of each investigated factor on the value of systematic error and correctly measure the thermophysical parameters using thermal-lens spectrometry.
Keywords:thermal-lens spectrometry, accuracy, trueness, mode-mismatched schematic, measurements of thermal diffusivity
Publication status:Published
Publication version:Version of Record
Publication date:01.01.2023
Year of publishing:2023
Number of pages:str. 1-30
Numbering:Vol. 13, no. 3, [article no.] 430
PID:20.500.12556/RUNG-7887-cf2803c5-c096-5ec3-3322-266d70320d4e New window
COBISS.SI-ID:138797827 New window
UDC:54
ISSN on article:2079-4991
DOI:10.3390/nano13030430 New window
NUK URN:URN:SI:UNG:REP:LI7YYWEA
Publication date in RUNG:20.01.2023
Views:1489
Downloads:13
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Record is a part of a journal

Title:Nanomaterials
Shortened title:Nanomaterials
Publisher:MDPI AG
ISSN:2079-4991
COBISS.SI-ID:523286297 New window

Document is financed by a project

Funder:ARRS - Slovenian Research Agency
Project number:J7-2602
Name:Sinteza in karakterizacija biokompozitnih materialov na osnovi sporopolenina za doseganje večje učinkovitosti proti mikroorganizmom odpornim na antibiotike
Acronym:SCABIOSA

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:20.01.2023

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