Photoluminescence Spectra and Unusual Temperature Shift of Zero-Phonon Emission Line of V3+ in SrTiO3

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00373685" target="_blank" >RIV/68407700:21340/23:00373685 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1134/S0030400X23040197" target="_blank" >https://doi.org/10.1134/S0030400X23040197</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1134/S0030400X23040197" target="_blank" >10.1134/S0030400X23040197</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Photoluminescence Spectra and Unusual Temperature Shift of Zero-Phonon Emission Line of V3+ in SrTiO3

Popis výsledku v původním jazyce

The paper presents the first observation of photoluminescence spectra of V3+ impurity in SrTiO3. The broad band of the observed emission is located in the near IR region and at low temperatures consists of a pronounced zero-phonon line (ZPL) with a maximum at 1157.1 nm (8642 cm–1) at 77 K and developed vibronic sidebands extending to 1450 nm. The observed ZPL is associated with an intracenter 1T2g -> 3T1g or a closely located 1Eg -> 3T1g emission transition in V3+ (3d2) ions replacing Ti4+ ions. It was found that the temperature shift of zero-phonon line is unusually large and its frequency decreases upon lowering the temperature. The local configuration instability of V3+ ions in the 3T1g ground state caused by soft TO1 temperature-dependent phonon mode present in SrTiO3 is considered as a possible source of the observed unusual temperature shift.

Název v anglickém jazyce

Photoluminescence Spectra and Unusual Temperature Shift of Zero-Phonon Emission Line of V3+ in SrTiO3

Popis výsledku anglicky

The paper presents the first observation of photoluminescence spectra of V3+ impurity in SrTiO3. The broad band of the observed emission is located in the near IR region and at low temperatures consists of a pronounced zero-phonon line (ZPL) with a maximum at 1157.1 nm (8642 cm–1) at 77 K and developed vibronic sidebands extending to 1450 nm. The observed ZPL is associated with an intracenter 1T2g -> 3T1g or a closely located 1Eg -> 3T1g emission transition in V3+ (3d2) ions replacing Ti4+ ions. It was found that the temperature shift of zero-phonon line is unusually large and its frequency decreases upon lowering the temperature. The local configuration instability of V3+ ions in the 3T1g ground state caused by soft TO1 temperature-dependent phonon mode present in SrTiO3 is considered as a possible source of the observed unusual temperature shift.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Centrum pokročilých aplikovaných přírodních věd</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Optics and Spectroscopy

ISSN

0030-400X

e-ISSN

1562-6911

Svazek periodika

131

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

4

Strana od-do

183-186

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85187793854