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Nishimura MVDM, Amaro AA, Bordon CDDS, Dipold J, Wetter NU, Kassab LRP. Tunable Visible Light and Energy Transfer Mechanism in Tm 3+ and Silver Nanoclusters within Co-Doped GeO 2-PbO Glasses. MICROMACHINES 2023; 14:2078. [PMID: 38004935 PMCID: PMC10673466 DOI: 10.3390/mi14112078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 10/30/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023]
Abstract
This study introduces a novel method for producing Ag nanoclusters (NCs) within GeO2-PbO glasses doped with Tm3+ ions. Sample preparation involved the melt-quenching method, employing adequate heat treatment to facilitate Ag NC formation. Absorption spectroscopy confirmed trivalent rare-earth ion incorporation. Ag NC identification and the amorphous structure were observed using transmission electron microscopy. A tunable visible emission from blue to the yellow region was observed. The energy transfer mechanism from Ag NCs to Tm3+ ions was demonstrated by enhanced 800 nm emission under 380 and 400 nm excitations, mainly for samples with a higher concentration of Ag NCs; moreover, the long lifetime decrease of Ag NCs at 600 nm (excited at 380 and 400 nm) and the lifetime increase of Tm3+ ions at 800 nm (excitation of 405 nm) corroborated the energy transfer between those species. Therefore, we attribute this energy transfer mechanism to the decay processes from S1→T1 and T1→S0 levels of Ag NCs to the 3H4 level of Tm3+ ions serving as the primary path of energy transfer in this system. GeO2-PbO glasses demonstrated potential as materials to host Ag NCs with applications for photonics as solar cell coatings, wideband light sources, and continuous-wave tunable lasers in the visible spectrum, among others.
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Affiliation(s)
- Marcos Vinicius de Morais Nishimura
- Departamento de Engenharia de Sistemas Eletrônicos, Escola Politécnica da Universidade de São Paulo, Av. Prof. Luciano Gualberto, 158, Travessa 3, São Paulo 05508-900, SP, Brazil (C.D.d.S.B.)
| | - Augusto Anselmo Amaro
- Departamento de Engenharia de Sistemas Eletrônicos, Escola Politécnica da Universidade de São Paulo, Av. Prof. Luciano Gualberto, 158, Travessa 3, São Paulo 05508-900, SP, Brazil (C.D.d.S.B.)
| | - Camila Dias da Silva Bordon
- Departamento de Engenharia de Sistemas Eletrônicos, Escola Politécnica da Universidade de São Paulo, Av. Prof. Luciano Gualberto, 158, Travessa 3, São Paulo 05508-900, SP, Brazil (C.D.d.S.B.)
| | - Jessica Dipold
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN, 2242, Av. Prof. Lineu Prestes, São Paulo 05508-000, SP, Brazil; (J.D.); (N.U.W.)
| | - Niklaus Ursus Wetter
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN, 2242, Av. Prof. Lineu Prestes, São Paulo 05508-000, SP, Brazil; (J.D.); (N.U.W.)
| | - Luciana Reyes Pires Kassab
- Faculdade de Tecnologia de São Paulo, CEETEPS, Praça Cel. Fernando Prestes, 30, São Paulo 01124-060, SP, Brazil;
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Pan L, Ye S, Xv X, Lin P, Huang R, Wang D. Zeolite-Encaged Luminescent Silver Nanoclusters. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16103736. [PMID: 37241363 DOI: 10.3390/ma16103736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/10/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023]
Abstract
Silver nanoclusters (Ag NCs) are nanoscale aggregates that possess molecular-like discrete energy levels, resulting in electronic configuration-dependent tunable luminescence spanning the entire visible range. Benefiting from the efficient ion exchange capacity, nanometer dimensional cages, and high thermal and chemical stabilities, zeolites have been employed as desirable inorganic matrices to disperse and stabilize Ag NCs. This paper reviewed the recent research progresses on the luminescence properties, spectral manipulation, as well as the theoretical modelling of electronic structure and optical transition of Ag NCs confined inside various zeolites with different topology structures. Furthermore, potential applications of the zeolite-encaged luminescent Ag NCs in lighting, gas monitoring and sensing were presented. This review concludes with a brief comment on the possible future directions in the study of zeolite-encaged luminescent Ag NCs.
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Affiliation(s)
- Ling Pan
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Song Ye
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Xinling Xv
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Peixuan Lin
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Ruihao Huang
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Deping Wang
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
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Amaro AA, Mattos GRDS, Nishimura MVDM, Dipold J, Wetter NU, Kassab LRP. Silver Nanoclusters Tunable Visible Emission and Energy Transfer to Yb 3+ Ions in Co-Doped GeO 2-PbO Glasses for Photonic Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1177. [PMID: 37049270 PMCID: PMC10097269 DOI: 10.3390/nano13071177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 03/22/2023] [Accepted: 03/24/2023] [Indexed: 06/19/2023]
Abstract
This work investigates the optical properties of Yb3+ ions doped GeO2-PbO glasses containing Ag nanoclusters (NCs), produced by the melt-quenching technique. The lack in the literature regarding the energy transfer (ET) between these species in these glasses motivated the present work. Tunable visible emission occurs from blue to orange depending on the Yb3+ concentration which affects the size of the Ag NCs, as observed by transmission electron microscopy. The ET mechanism from Ag NCs to Yb3+ ions (2F7/2 → 2F5/2) was attributed to the S1→T1 decay (spin-forbidden electronic transition between singlet-triplet states) and was corroborated by fast and slow lifetime decrease (at 550 nm) of Ag NCs and photoluminescence (PL) growth at 980 nm, for excitations at 355 and 405 nm. The sample with the highest Yb3+ concentration exhibits the highest PL growth under 355 nm excitation, whereas at 410 nm it is the sample with the lowest concentration. The restriction of Yb3+ ions to the growth of NCs is responsible for these effects. Thus, higher Yb3+ concentration forms smaller Ag NCs, whose excitation at 355 nm leads to more efficient ET to Yb3+ ions compared to 410 nm. These findings have potential applications in the visible to near-infrared regions, such as tunable CW laser sources and photovoltaic devices.
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Affiliation(s)
- Augusto Anselmo Amaro
- Departamento de Engenharia de Sistemas Eletronicos, Escola Politécnica da Universidade de São Paulo, Av. Prof. Luciano Gualberto, 158, Travessa 3, São Paulo 05508-900, SP, Brazil; (A.A.A.)
| | - Guilherme Rodrigues da Silva Mattos
- Departamento de Engenharia de Sistemas Eletronicos, Escola Politécnica da Universidade de São Paulo, Av. Prof. Luciano Gualberto, 158, Travessa 3, São Paulo 05508-900, SP, Brazil; (A.A.A.)
| | - Marcos Vinicius de Morais Nishimura
- Departamento de Engenharia de Sistemas Eletronicos, Escola Politécnica da Universidade de São Paulo, Av. Prof. Luciano Gualberto, 158, Travessa 3, São Paulo 05508-900, SP, Brazil; (A.A.A.)
| | - Jessica Dipold
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN, 2242, Av. Prof. Lineu Prestes, São Paulo 05508-000, SP, Brazil
| | - Niklaus Ursus Wetter
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN, 2242, Av. Prof. Lineu Prestes, São Paulo 05508-000, SP, Brazil
| | - Luciana Reyes Pires Kassab
- Faculdade de Tecnologia de São Paulo, CEETEPS, Praça Cel. Fernando Prestes, 30, São Paulo 01124-060, SP, Brazil
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Palan CB, Bajaj NS, Bhagat SP, Omanwar SK. Microwave-assisted combustion synthesis and luminescence properties of colour-tunable Eu 3+ /Tb 3+ co-doped BaLaB 9 O 16. LUMINESCENCE 2021; 36:1491-1497. [PMID: 34015171 DOI: 10.1002/bio.4090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 04/19/2021] [Accepted: 05/17/2021] [Indexed: 11/05/2022]
Abstract
In the present study, hexagonal structured borate phosphors BaLaB9 O16 were prepared using a combustion method with colour-tunable emission properties achieved by varying the doping concentration of Eu3+ and Tb3+ in the cluster. The as-prepared materials were analyzed for structural and morphological parameters through X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM) studies. Tuning of colour was predicted through the photoluminescence and photoluminescence excitation spectra of the materials that showed good green and red emissions when doped with Tb3+ and Eu3+ , respectively, whereas the emission of the co-doped sample (Eu3+ and Tb3+ ) can be varied from the green region to red region by varying the excitation range from 207 to 254 nm.
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Affiliation(s)
- Chetan B Palan
- Department of Physics, B.S. Patel ACS College Pimpalgaon Kale, Buldhana, India
| | - Nikhilesh S Bajaj
- Toshniwal Arts, Commerce and Science College, Sengaon, Hingoli, 431542, India
| | - Suresh P Bhagat
- Department of Physics, SGB Amravati University, Tapowan Road, Amravati, India
| | - Shrinivas K Omanwar
- Department of Physics, SGB Amravati University, Tapowan Road, Amravati, India
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Marasanov DV, Mironov LY, Sgibnev YM, Kolesnikov IE, Nikonorov NV. Luminescence and energy transfer mechanisms in photo-thermo-refractive glasses co-doped with silver molecular clusters and Eu 3. Phys Chem Chem Phys 2020; 22:23342-23350. [PMID: 33043919 DOI: 10.1039/d0cp02786c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Silver molecular clusters were synthesized in photo-thermo-refractive glasses using the Na+-Ag+ ion exchange technique followed by heat treatment. Comprehensive study of cluster emission reveals the presence of spectrally separated fluorescence and phosphorescence with nanosecond and microsecond lifetime. Co-doping of glasses with Eu3+ was shown to results in quenching of cluster luminescence caused by energy transfer. The monitoring of silver cluster luminescence quantum yield and lifetime in the presence of Eu3+ indicates the presence of two different mechanisms of energy transfer. The first one affects the decay kinetics of cluster fluorescence and manifests at long distances, while the second one leads to static quenching of cluster emission at shorter distances and becomes prominent at higher doping Eu3+ concentration.
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Shi Y, Ye S, Liao H, Liu J, Wang D. Formation of luminescent silver-clusters and efficient energy transfer to Eu3+ in faujasite NaX zeolite. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2020.121227] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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