Spatially resolved temperature distribution in a rare-earth-doped transparent glass-ceramic

Sedmak, Ivan (avtor), Podlipec, Rok (avtor), Urbančič, Iztok (avtor), Štrancar, Janez (avtor), Mortier, Michel (avtor), Golobič, Iztok (avtor)

Knowing the temperature distribution within the conducting walls of various multilayer-type materials is crucial for a better understanding of heat-transfer processes. This applies to many engineering fields, good examples being photovoltaics and microelectronics. In this work we present a novel fluorescence technique that makes possible the non-invasive imaging of local temperature distributions within a transparent, temperature-sensitive, co-doped Er:GPF1Yb0.5Er glass-ceramic with micrometer spatial resolution. The thermal imaging was performed with a high-resolution fluorescence microscopy system, measuring different focal planes along the z-axis. This ultimately enabled a precise axial reconstruction of the temperature distribution across a 500-µm-thick glass-ceramic sample. The experimental measurements showed good agreement with computer-modeled heat simulations and suggest that the technique could be adopted for the spatial analyses of local thermal processes within optically transparent materials. For instance, the technique could be used to measure the temperature distribution of intermediate, transparent layers of novel ultra-high-efficiency solar cells at the micron and sub-micron levels.

• Jezik: Angleški jezik
• Ključne besede: temperature-dependent fluorescence, co-doped glass-ceramic, axial temperature distribution, micro-scale temperature measurements
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2022
• Št. strani: 11 str.
• Številčenje: Vol. 22, iss. 5, art. 1970
• PID: 20.500.12556/RUL-135259
• UDK: 536.5:66.02
• ISSN pri članku: 1424-8220
• DOI: 10.3390/s22051970
• COBISS.SI-ID: 99512067
• Datum objave v RUL: 03.03.2022

Gradivo je del revije

• Naslov: Sensors
• Skrajšan naslov: Sensors
• Založnik: MDPI
• ISSN: 1424-8220
• COBISS.SI-ID: 10176278

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 02.03.2022

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: temperaturno odvisna fluorescenca, dopirana steklokeramika, merjenje temperature

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0223
• Naslov: Prenos toplote in snovi