20.500.12556/RUL-135259 Spatially resolved temperature distribution in a rare-earth-doped transparent glass-ceramic 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. temperature-dependent fluorescence co-doped glass-ceramic axial temperature distribution micro-scale temperature measurements temperaturno odvisna fluorescenca dopirana steklokeramika merjenje temperature true false true Angleški jezik Slovenski jezik Članek v reviji 2022-03-03 09:54:39 2022-03-03 09:54:44 2022-09-14 04:12:27 0000-00-00 00:00:00 2022 0 0 11 str. iss. 5, art. 1970 Vol. 22 Mar. 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 536.5:66.02 1424-8220 10.3390/s22051970 99512067 sensors-22-01970-v2.pdf sensors-22-01970-v2.pdf 1 0251BD0A6B4C271B5761607371EC9B48 f165be7df9caffa4fbd4f1acf2f9bbaee19be8858c9b5bbebeaf750605e20ea6 30d82d50-ebc8-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=157298 https://www.mdpi.com/1424-8220/22/5/1970 1 4dba53ae-9acf-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=154212 Fakulteta za strojništvo 0 0 0