File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Unveiling the phonon effect on the narrow-band deep-red emission from solution-combustion synthesized Mn4+ doped CaYAlO4 microcrystals

TitleUnveiling the phonon effect on the narrow-band deep-red emission from solution-combustion synthesized Mn4+ doped CaYAlO4 microcrystals
Authors
KeywordsDominant phonon energy
Ionically thermal excitation
Mn4+ luminescence
Weak electron-phonon coupling
Issue Date27-Jul-2022
PublisherElsevier
Citation
Journal of Alloys and Compounds, 2022, v. 923, p. 1-11 How to Cite?
Abstract

In this study, we report a unique solution-combustion synthesis of Mn4+ doped CaYAlO4 microcrystals and demonstrate a narrow-band deep-red emission. Through the simulation of low-temperature photoluminescence (PL) spectroscopy and theoretical fitting on temperature-dependent PL intensity at T < 400 K, we obtained a dominant phonon mode with energy of 40 meV during the vibronic coupling process, with a small Huang-Rhys factor of S= 0.68. From the analysis of the measured PL lifetime evolution of Mn4 + doped CaYAlO4, it is found that luminescence thermal quenching effect was mainly attributed to four-dominant phonon interaction with Mn4+ electronic states. More interestingly, the deviation of luminescence decay curve from the single-exponential mode at T > 400 K suggests that the occurrence of two radiative transitions is a consequence of ionically thermal excitation to the second excited state of 4T2. These findings provide not only a general approach to identify the predominant phonon vibration, but also deep insights into the effect of weak electron-phonon coupling on PL properties of solid-state luminescent.


Persistent Identifierhttp://hdl.handle.net/10722/338970
ISSN
2023 Impact Factor: 5.8
2023 SCImago Journal Rankings: 1.103
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorTian, Zehua-
dc.contributor.authorLiu, Beichen-
dc.contributor.authorXiao, Yang-
dc.contributor.authorWang, Zihao-
dc.contributor.authorZhang, Lizhen-
dc.contributor.authorXu, Shijie-
dc.contributor.authorYe, Honggang-
dc.contributor.authorTian, Kangzhen-
dc.contributor.authorNie, Xinming-
dc.contributor.authorTang, Fei-
dc.date.accessioned2024-03-11T10:32:54Z-
dc.date.available2024-03-11T10:32:54Z-
dc.date.issued2022-07-27-
dc.identifier.citationJournal of Alloys and Compounds, 2022, v. 923, p. 1-11-
dc.identifier.issn0925-8388-
dc.identifier.urihttp://hdl.handle.net/10722/338970-
dc.description.abstract<p>In this study, we report a unique solution-combustion synthesis of Mn<sup>4+</sup> doped CaYAlO<sub>4</sub> microcrystals and demonstrate a narrow-band deep-red emission. Through the simulation of low-temperature <a href="https://www.sciencedirect.com/topics/materials-science/photoluminescence" title="Learn more about photoluminescence from ScienceDirect's AI-generated Topic Pages">photoluminescence</a> (PL) spectroscopy and theoretical fitting on temperature-dependent PL intensity at <em>T</em> < 400 K, we obtained a dominant phonon mode with energy of 40 meV during the vibronic coupling process, with a small Huang-Rhys factor of <em>S</em>= 0.68. From the analysis of the measured PL lifetime evolution of Mn4 + doped CaYAlO<sub>4</sub>, it is found that luminescence thermal quenching effect was mainly attributed to four-dominant phonon interaction with Mn<sup>4+</sup> electronic states. More interestingly, the deviation of luminescence decay curve from the single-exponential mode at <em>T</em> > 400 K suggests that the occurrence of two radiative transitions is a consequence of ionically thermal excitation to the second excited state of <sup>4</sup>T<sub>2</sub>. These findings provide not only a general approach to identify the predominant phonon vibration, but also deep insights into the effect of weak electron-phonon coupling on PL properties of solid-state luminescent.</p>-
dc.languageeng-
dc.publisherElsevier-
dc.relation.ispartofJournal of Alloys and Compounds-
dc.subjectDominant phonon energy-
dc.subjectIonically thermal excitation-
dc.subjectMn4+ luminescence-
dc.subjectWeak electron-phonon coupling-
dc.titleUnveiling the phonon effect on the narrow-band deep-red emission from solution-combustion synthesized Mn4+ doped CaYAlO4 microcrystals-
dc.typeArticle-
dc.identifier.doi10.1016/j.jallcom.2022.166280-
dc.identifier.scopuseid_2-s2.0-85134899217-
dc.identifier.volume923-
dc.identifier.spage1-
dc.identifier.epage11-
dc.identifier.eissn1873-4669-
dc.identifier.isiWOS:000930745400001-
dc.identifier.issnl0925-8388-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats