Photoluminescence in pulsed-laser deposited GeGaSbS:Er films
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F18%3A39912634" target="_blank" >RIV/00216275:25310/18:39912634 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/18:00501553
Result on the web
<a href="https://doi.org/10.1016/j.optmat.2018.08.055" target="_blank" >https://doi.org/10.1016/j.optmat.2018.08.055</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.optmat.2018.08.055" target="_blank" >10.1016/j.optmat.2018.08.055</a>
Alternative languages
Result language
angličtina
Original language name
Photoluminescence in pulsed-laser deposited GeGaSbS:Er films
Original language description
The complex dielectric function, the Er3+ Stokes emission at approximate to 1540 nm and the upconversion photoluminescence at approximate to 990 nm of pulsed-laser deposited thin-film GeGaSbS:Er3+ are studied. The linear-refractive index dispersion is obtained by fitting spectroscopic ellipsometry data to the Sellmeier and the Cody-Lorentz parametrizations. The former model is used to calculate nonlinear refractive index. The Stokes emission intensity at approximate to 1540 nm, originating from the Er3+:4I13/2→4I15/2 transition under a 980 nm pumping, diminishes with increasing refractive index and decreasing optical-bandgap energy of the films. An attempt to relate differences in the optical and photoluminescence properties to the atomic structure elucidated from Raman spectra analysis is presented. The emission probability is highest for the structure with the lowest fraction of (semi)metallic bonds, the highest content of homonuclear S-S bonds and the lowest Ge/S ratio. In such a film, the clustering of Er3+ ions, which is responsible for the intensity weakening, is suppressed. The film shows approximate to 990nm upconversion photoluminescence originating from the Er3+:4I11/2→4I15/2 transition under a 1550 nm excitation. The upconversion peak shape resembles that of the compositionally and structurally similar bulk glass.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Optical Materials
ISSN
0925-3467
e-ISSN
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Volume of the periodical
85
Issue of the periodical within the volume
November
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
8
Pages from-to
246-253
UT code for WoS article
000447575500037
EID of the result in the Scopus database
2-s2.0-85052487273