Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Nanoscale Cathodoluminescence Thermometry with a Lanthanide-Doped Heavy-Metal Oxide in Transmission Electron Microscopy. / Park, W.-W.; Olshin, P.K.; Kim, Y.-J.; Nho, H.-W.; Mamonova, D.V.; Kolesnikov, I.E.; Medvedev, V.A.; Kwon, O.-H.
в: ACS Nano, Том 18, № 6, 13.02.2024, стр. 4911-4921.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Nanoscale Cathodoluminescence Thermometry with a Lanthanide-Doped Heavy-Metal Oxide in Transmission Electron Microscopy
AU - Park, W.-W.
AU - Olshin, P.K.
AU - Kim, Y.-J.
AU - Nho, H.-W.
AU - Mamonova, D.V.
AU - Kolesnikov, I.E.
AU - Medvedev, V.A.
AU - Kwon, O.-H.
N1 - Export Date: 04 March 2024; Cited By: 0
PY - 2024/2/13
Y1 - 2024/2/13
N2 - When navigated by the available energy of a system, often provided in the form of heat, physical processes or chemical reactions fleet on a free-energy landscape, thus changing the structure. In in situ transmission electron microscopy (TEM), where material structures are measured and manipulated inside the microscope while being subjected to external stimuli such as electrical fields, laser irradiation, or mechanical stress, it is necessary to precisely determine the local temperature of the specimen to provide a comprehensive understanding of material behavior and to establish the relationship among energy, structure, and properties at the nanoscale. Here, we propose using cathodoluminescence (CL) spectroscopy in TEM for in situ measurement of the local temperature. Gadolinium oxide particles doped with emissive europium ions present an opportunity to utilize them as a temperature probe in CL measurements via a ratiometric approach. We show the thermometric performance of the probe and demonstrate a precision of ±5 K in the temperature range from 113 to 323 K with the spatial resolution limited by the size of the particles, which surpasses other methods for temperature determination. With the CL-based thermometry, we further demonstrate measuring local temperature under laser irradiation. © 2024 American Chemical Society.
AB - When navigated by the available energy of a system, often provided in the form of heat, physical processes or chemical reactions fleet on a free-energy landscape, thus changing the structure. In in situ transmission electron microscopy (TEM), where material structures are measured and manipulated inside the microscope while being subjected to external stimuli such as electrical fields, laser irradiation, or mechanical stress, it is necessary to precisely determine the local temperature of the specimen to provide a comprehensive understanding of material behavior and to establish the relationship among energy, structure, and properties at the nanoscale. Here, we propose using cathodoluminescence (CL) spectroscopy in TEM for in situ measurement of the local temperature. Gadolinium oxide particles doped with emissive europium ions present an opportunity to utilize them as a temperature probe in CL measurements via a ratiometric approach. We show the thermometric performance of the probe and demonstrate a precision of ±5 K in the temperature range from 113 to 323 K with the spatial resolution limited by the size of the particles, which surpasses other methods for temperature determination. With the CL-based thermometry, we further demonstrate measuring local temperature under laser irradiation. © 2024 American Chemical Society.
KW - cathodoluminescence
KW - excited-state kinetics
KW - in situ transmission electron microscopy
KW - luminescence
KW - nanothermometry
KW - rare earth ions
UR - https://www.mendeley.com/catalogue/0894814f-c3a6-3b6f-818f-121c86f63cf5/
U2 - 10.1021/acsnano.3c10020
DO - 10.1021/acsnano.3c10020
M3 - статья
VL - 18
SP - 4911
EP - 4921
JO - ACS Nano
JF - ACS Nano
SN - 1936-0851
IS - 6
ER -
ID: 117311844