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@article{2304857,
author = {Zezula, Jan and Mužík, David and Bachler, Johannes and Loerting, Thomas and Heger, Dominik},
article_location = {Amserdam},
article_number = {September},
doi = {http://dx.doi.org/10.1016/j.jlumin.2023.119917},
keywords = {Condensed phases; Luminescence; Surface premelting; Quasi-liquid layer; Cold crystallization; Excimers},
language = {eng},
issn = {0022-2313},
journal = {Journal of Luminescence},
title = {Distinguishing the glass, crystal, and quasi-liquid layer in 1-methylnaphthalene by using fluorescence signatures},
url = {https://doi.org/10.1016/j.jlumin.2023.119917},
volume = {261},
year = {2023}
}
TY - JOUR
ID - 2304857
AU - Zezula, Jan - Mužík, David - Bachler, Johannes - Loerting, Thomas - Heger, Dominik
PY - 2023
TI - Distinguishing the glass, crystal, and quasi-liquid layer in 1-methylnaphthalene by using fluorescence signatures
JF - Journal of Luminescence
VL - 261
IS - September
SP - 1-11
EP - 1-11
PB - Elsevier
SN - 00222313
KW - Condensed phases
KW - Luminescence
KW - Surface premelting
KW - Quasi-liquid layer
KW - Cold crystallization
KW - Excimers
UR - https://doi.org/10.1016/j.jlumin.2023.119917
N2 - The fluorescence of crystalline 1-methylnaphthalene is monomer-like, while liquid and glass exhibit excimeric emissions. We detail the temperature dependence of the fluorescence emission and excitation spectra in the range of between 77 K and 295 K. These spectra provide exhaustive information about the state and temperature of 1-methylnaphthalene. The glass, formed by abrupt quenching in liquid nitrogen or methane, devitrifies at (155 +/- 5) K, and the liquid then undergoes cold crystallization at around 170 K. In 1-methylnaphthalene crystals, an excimeric emission appears at approximately 40 K below the melting point, a process we ascribe to the formation of dimers due to surface premelting; such a quasi-liquid layer exists at the surface well below the freezing point, remaining uncrystallized. The premelted layer is clearly distinguishable from the bulk glass via fluorescence spectroscopy, which facilitates state identification.
ER -
ZEZULA, Jan, David MUŽÍK, Johannes BACHLER, Thomas LOERTING a Dominik HEGER. Distinguishing the glass, crystal, and quasi-liquid layer in 1-methylnaphthalene by using fluorescence signatures. \textit{Journal of Luminescence}. Amserdam: Elsevier, 2023, roč.~261, September, s.~1-11. ISSN~0022-2313. Dostupné z: https://dx.doi.org/10.1016/j.jlumin.2023.119917.
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