Photoluminescence properties of Er-doped Ge–In(Ga)–S glasses modified by caesium halides

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F17%3A00484904" target="_blank" >RIV/67985882:_____/17:00484904 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985891:_____/17:00480763 RIV/60461373:22310/17:43914570

Výsledek na webu

<a href="http://dx.doi.org/10.1002/pssb.201600662" target="_blank" >http://dx.doi.org/10.1002/pssb.201600662</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/pssb.201600662" target="_blank" >10.1002/pssb.201600662</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Photoluminescence properties of Er-doped Ge–In(Ga)–S glasses modified by caesium halides

Popis výsledku v původním jazyce

Chalcohalide Ge-In-S and Ge-Ga-S glasses modified by CsX (X = Cl, Br, and I), and doped with Er in the range from 0.1 to 0.5 at.%, have been prepared and investigated. The influence of CsX addition on their optical properties has been studied by transmission and photoluminescence spectroscopy. Nominal compositions of [Ge25In(Ga)(10)S-65](90)(CsX)(10) have been selected as host materials. The shift of the absorption edge as a function of caesium halides is observed in GeInS (CsX) system with maximum band gap observed for CsI. The low-temperature photoluminescence reveals the broad band luminescence of the host glass centered at around the half of the band gap energy with superimposed 4f-4f radiative transitions of Er3+ ions. The position of the broad luminescence band is considerably shifted to higher energy in the case of CsI ascompared to CsCl and CsBr. In the case of Er-doped chalcohalide (Ge25Ga10S65)(90)(CsBr)(10) system, a considerable narrowing of I-4(13/2) -> I-4(15/2) radiative transitions of Er3+ ions accompanied by the pronounced splitting of the emission sub-bands clearly documents the increasing ceramics-like nature in the host material due to the admixture of CsBr. The influence of CsBr concentration on the shape of the broad-band luminescence of Ge-Ga-S-CsBr host is also reported

Název v anglickém jazyce

Photoluminescence properties of Er-doped Ge–In(Ga)–S glasses modified by caesium halides

Popis výsledku anglicky

Chalcohalide Ge-In-S and Ge-Ga-S glasses modified by CsX (X = Cl, Br, and I), and doped with Er in the range from 0.1 to 0.5 at.%, have been prepared and investigated. The influence of CsX addition on their optical properties has been studied by transmission and photoluminescence spectroscopy. Nominal compositions of [Ge25In(Ga)(10)S-65](90)(CsX)(10) have been selected as host materials. The shift of the absorption edge as a function of caesium halides is observed in GeInS (CsX) system with maximum band gap observed for CsI. The low-temperature photoluminescence reveals the broad band luminescence of the host glass centered at around the half of the band gap energy with superimposed 4f-4f radiative transitions of Er3+ ions. The position of the broad luminescence band is considerably shifted to higher energy in the case of CsI ascompared to CsCl and CsBr. In the case of Er-doped chalcohalide (Ge25Ga10S65)(90)(CsBr)(10) system, a considerable narrowing of I-4(13/2) -> I-4(15/2) radiative transitions of Er3+ ions accompanied by the pronounced splitting of the emission sub-bands clearly documents the increasing ceramics-like nature in the host material due to the admixture of CsBr. The influence of CsBr concentration on the shape of the broad-band luminescence of Ge-Ga-S-CsBr host is also reported

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20504 - Ceramics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Physica Status Solidi B-Basic Solid State Physics

ISSN

0370-1972

e-ISSN

—

Svazek periodika

254

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

6

Strana od-do

—

Kód UT WoS článku

000403292300015

EID výsledku v databázi Scopus

2-s2.0-85014111706