Crystal-field engineering of ultrabroadband mid-infrared emission in Co2+- doped nano-chalcogenide glass composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F20%3A39914996" target="_blank" >RIV/00216275:25310/20:39914996 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.jeurceramsoc.2019.09.006" target="_blank" >https://doi.org/10.1016/j.jeurceramsoc.2019.09.006</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2019.09.006" target="_blank" >10.1016/j.jeurceramsoc.2019.09.006</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Crystal-field engineering of ultrabroadband mid-infrared emission in Co2+- doped nano-chalcogenide glass composites

Popis výsledku v původním jazyce

Tunable and ultrabroadband mid-infrared (MIR) emissions in the range of 2.5-4.5 pm are firstly reported from Co2+-doped nano-chalcogenide (ChG) glass composites. The composites embedded with a variety of binary (ZnS, CdS, ZnSe) and ternary (ZnCdS, ZnSSe) ChG nanocrystals (NCs) can be readily obtained by a simple onestep thermal annealing method. They are highly transparent in the near- and mid-infrared wavelength region. Low-cost and commercially available Er3+-doped fiber lasers can be used as the excitation source. By crystalfield engineering of the embedded NCs through cation- or anion-substitution, the emission properties of Co2+ including its emission peak wavelength and bandwidth can be tailored in a broad spectral range. The phenomena can be accounted for by crystal-field theory. Such nano-ChG composites, perfectly filling the 3-4 pm spectral gap between the oscillations of Cr(2+ )and Fe2+ doped II-VI ChG crystals, may find important MIR photonic applications (e.g., gas sensing), or can be used directly as an efficient pump source for Fe2+ : II-VI crystals which are suffering from lack of pump sources.

Název v anglickém jazyce

Crystal-field engineering of ultrabroadband mid-infrared emission in Co2+- doped nano-chalcogenide glass composites

Popis výsledku anglicky

Tunable and ultrabroadband mid-infrared (MIR) emissions in the range of 2.5-4.5 pm are firstly reported from Co2+-doped nano-chalcogenide (ChG) glass composites. The composites embedded with a variety of binary (ZnS, CdS, ZnSe) and ternary (ZnCdS, ZnSSe) ChG nanocrystals (NCs) can be readily obtained by a simple onestep thermal annealing method. They are highly transparent in the near- and mid-infrared wavelength region. Low-cost and commercially available Er3+-doped fiber lasers can be used as the excitation source. By crystalfield engineering of the embedded NCs through cation- or anion-substitution, the emission properties of Co2+ including its emission peak wavelength and bandwidth can be tailored in a broad spectral range. The phenomena can be accounted for by crystal-field theory. Such nano-ChG composites, perfectly filling the 3-4 pm spectral gap between the oscillations of Cr(2+ )and Fe2+ doped II-VI ChG crystals, may find important MIR photonic applications (e.g., gas sensing), or can be used directly as an efficient pump source for Fe2+ : II-VI crystals which are suffering from lack of pump sources.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20504 - Ceramics

Projekt

<a href="/cs/project/EF17_048%2F0007376" target="_blank" >EF17_048/0007376: Senzory s vysokou citlivostí a materiály s nízkou hustotou na bázi polymerních nanokompozitů-NANOMAT</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of the European Ceramic Society

ISSN

0955-2219

e-ISSN

—

Svazek periodika

40

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

103-107

Kód UT WoS článku

000494891400013

EID výsledku v databázi Scopus

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