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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • 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

  • 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