CORE
🇺🇦
make metadata, not war
Services
Services overview
Explore all CORE services
Access to raw data
API
Dataset
FastSync
Content discovery
Recommender
Discovery
OAI identifiers
OAI Resolver
Managing content
Dashboard
Bespoke contracts
Consultancy services
Support us
Support us
Membership
Sponsorship
Community governance
Advisory Board
Board of supporters
Research network
About
About us
Our mission
Team
Blog
FAQs
Contact us
Long-lived NIR emission in sulfur-doped zeolites due to the presence of [S3]2- clusters
Authors
Luís C. Alves
João Avó
+8 more
Luís F. V. Ferreira
Filipe Folgosa
César A. T. Laia
João C. Lima
Mani Outis
Andreia Ruivo
Miguel Teixeira
Catarina Viola
Publication date
1 June 2023
Publisher
'Elsevier BV'
Doi
Cite
Abstract
Funding Information: The authors want to acknowledge the Portuguese Foundation for Science and Technology for funding through the grants SFRH/BD/145009/2019 and SFRH/BPD/120599/2016 , the individual contract 2020.00252. CEECIND and several projects PTDC/QUI-QFI/32007/2017, UIDB/04565/2020, UIDP/04565/2020, LA/P/0140/2020, LAQV-REQUIMTE (LA/P/0008/2020, UIDB/50006/2020 and UIDP/50006/2020), VICARTE (UIDP/00729/2020, UIDB/00729/2020) and C2TN (UIDB/04349/2020). MOSTMICRO-ITQB R&D Unit (UIDB/04612/2020, UIDP/04612/2020) and LS4FUTURE Associated Laboratory (LA/P/0087/2020) and by European Union's Horizon 2020 research and innovation program under grant agreement No. 810856. Funding Information: The authors want to acknowledge the Portuguese Foundation for Science and Technology for funding through the grants SFRH/BD/145009/2019 and SFRH/BPD/120599/2016, the individual contract 2020.00252. CEECIND and several projects PTDC/QUI-QFI/32007/2017, UIDB/04565/2020, UIDP/04565/2020, LA/P/0140/2020, LAQV-REQUIMTE (LA/P/0008/2020, UIDB/50006/2020 and UIDP/50006/2020), VICARTE (UIDP/00729/2020, UIDB/00729/2020) and C2TN (UIDB/04349/2020). MOSTMICRO-ITQB R&D Unit (UIDB/04612/2020, UIDP/04612/2020) and LS4FUTURE Associated Laboratory (LA/P/0087/2020) and by European Union's Horizon 2020 research and innovation program under grant agreement No. 810856. Publisher Copyright: © 2023 The Author(s)The exploration of novel long-lived near-infrared (NIR) luminescent materials has attracted significant attention due to their applications in optical communications, anticounterfeiting, and bioimaging. However, these materials usually present low photoluminescence quantum yields and low photo- and chemical stability. Novel emitters that overcome these limitations are in demand. In this study, NIR emission was achieved using widely available, sustainable, and non-toxic materials through the synthesis of sulfur-doped zeolites, with different S/Cl ratios. With a combination of computational calculations (TD-DFT) and spectroscopic data, this emission was assigned to the radiative decay of excited triplet states of [S3]2- clusters, which resulted in a remarkably high Stokes shift (1.97 eV, 440 nm) and an average decay time of 0.54 ms. These new materials present high stability, external quantum efficiency of up to 17%, and a long-lived NIR emission, placing these compounds in a unique position to be used in applications demanding NIR emitters.publishersversionpublishe
Similar works
Full text
Open in the Core reader
Download PDF
Available Versions
Repositório da Universidade Nova de Lisboa
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:run.unl.pt:10362/154629
Last time updated on 30/06/2023