Comparison of energy transfer between Terbium and Ytterbium ions in glass and glass ceramic: Application in photovoltaic
The structural and optical properties of thin layers based on 70%SiO2–30%HfO2 doped with different concentration of rare earth ions (terbium and ytterbium) have been studied with a view to integrating them in a photovoltaic cell as a spectral conversion layer in order to improve its efficiency, by u...
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| Format: | Article |
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Elsevier
2022-01-01
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| Series: | Solar Energy Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667113121000127 |
| _version_ | 1811298169739280384 |
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| author | L. Oulmaati S. Belmokhtar K. Bouziane A. Bouajaj M. Britel F. Enrichi C. Armellini A. Chiappini M. Ferrari |
| author_facet | L. Oulmaati S. Belmokhtar K. Bouziane A. Bouajaj M. Britel F. Enrichi C. Armellini A. Chiappini M. Ferrari |
| author_sort | L. Oulmaati |
| collection | DOAJ |
| description | The structural and optical properties of thin layers based on 70%SiO2–30%HfO2 doped with different concentration of rare earth ions (terbium and ytterbium) have been studied with a view to integrating them in a photovoltaic cell as a spectral conversion layer in order to improve its efficiency, by using down-conversion process. These thin films were synthesized by using sol gel technique and deposited on the pure silica substrate by dip-coating method. The DC layer can be placed on the front side of a solar cell and can enhance the current by converting ultraviolet (UV) photons into a large number of visible photons.In present study two series of samples are compared, the first series corresponds to samples treated at 900 °C (glass- S) while the second series concerns samples treated at 1000 °C (glass-ceramic- SC). These series are based on 70SiO2–30HfO2 activated by different molar concentrations of rare earths [Tb + Yb]/[Si + Hf] = 7%, 9%, 12%, 15%, 17%, 19% and 21%.Photoluminescence results of reference samples (without Yb3+) showed an emission from 5D4 to 7FJ (J = 3, 4, 5, 6) level characteristic transitions of Tb3+, with a maximum peak in the green centered at 543.5 nm corresponding to the 5D4→7F5 transition. For the co-doped samples a clear NIR PL emission around 980 nm was detected, due to the 2F5/2→2F7/2 transition of Yb3+ ions. From luminescence decay curves of Tb3+ maximum emission peak (7F5→5D4 transition at 543.5 nm) we have identified the energy transfer efficiency. The quantum efficiency increases by increasing the total [Tb + Yb] concentration. The most significant yield was achieved with [Tb + Yb]=19%, the maximum quantum transfer efficiency obtained was 190% for glass-ceramic samples and 161% for glassy one. |
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| id | doaj.art-c8e284f7cb1e4f1dbd79d78919868aa3 |
| institution | Directory Open Access Journal |
| issn | 2667-1131 |
| language | English |
| last_indexed | 2024-04-13T06:16:38Z |
| publishDate | 2022-01-01 |
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| series | Solar Energy Advances |
| spelling | doaj.art-c8e284f7cb1e4f1dbd79d78919868aa32022-12-22T02:58:49ZengElsevierSolar Energy Advances2667-11312022-01-012100012Comparison of energy transfer between Terbium and Ytterbium ions in glass and glass ceramic: Application in photovoltaicL. Oulmaati0S. Belmokhtar1K. Bouziane2A. Bouajaj3M. Britel4F. Enrichi5C. Armellini6A. Chiappini7M. Ferrari8Laboratoire des Technologies Innovantes, LTI, Département de Génie industriel ENSA – Tanger, Université Abdelmalek Essaâdi, Tanger, Morocco; School of Renewable Energies and Petroleum Studies, Technopolis, International University of Rabat, LERMA, Sala el Jadida 11000, Morocco; Corresponding author.School of Renewable Energies and Petroleum Studies, Technopolis, International University of Rabat, LERMA, Sala el Jadida 11000, MoroccoSchool of Renewable Energies and Petroleum Studies, Technopolis, International University of Rabat, LERMA, Sala el Jadida 11000, MoroccoLaboratoire des Technologies Innovantes, LTI, Département de Génie industriel ENSA – Tanger, Université Abdelmalek Essaâdi, Tanger, MoroccoLaboratoire des Technologies Innovantes, LTI, Département de Génie industriel ENSA – Tanger, Université Abdelmalek Essaâdi, Tanger, MoroccoCNR-ISP Consiglio Nazionale delle Ricerche - Istituto di Scienze Polari via Torino 155, 30172 Venezia-Mestre, ItalyCNR-IFN, Istituto di Fotonica e Nanotecnologie, CSMFO Lab. & FBK-CMM, 38123 Povo, Trento, ItalyCNR-IFN, Istituto di Fotonica e Nanotecnologie, CSMFO Lab. & FBK-CMM, 38123 Povo, Trento, ItalyCNR-IFN, Istituto di Fotonica e Nanotecnologie, CSMFO Lab. & FBK-CMM, 38123 Povo, Trento, ItalyThe structural and optical properties of thin layers based on 70%SiO2–30%HfO2 doped with different concentration of rare earth ions (terbium and ytterbium) have been studied with a view to integrating them in a photovoltaic cell as a spectral conversion layer in order to improve its efficiency, by using down-conversion process. These thin films were synthesized by using sol gel technique and deposited on the pure silica substrate by dip-coating method. The DC layer can be placed on the front side of a solar cell and can enhance the current by converting ultraviolet (UV) photons into a large number of visible photons.In present study two series of samples are compared, the first series corresponds to samples treated at 900 °C (glass- S) while the second series concerns samples treated at 1000 °C (glass-ceramic- SC). These series are based on 70SiO2–30HfO2 activated by different molar concentrations of rare earths [Tb + Yb]/[Si + Hf] = 7%, 9%, 12%, 15%, 17%, 19% and 21%.Photoluminescence results of reference samples (without Yb3+) showed an emission from 5D4 to 7FJ (J = 3, 4, 5, 6) level characteristic transitions of Tb3+, with a maximum peak in the green centered at 543.5 nm corresponding to the 5D4→7F5 transition. For the co-doped samples a clear NIR PL emission around 980 nm was detected, due to the 2F5/2→2F7/2 transition of Yb3+ ions. From luminescence decay curves of Tb3+ maximum emission peak (7F5→5D4 transition at 543.5 nm) we have identified the energy transfer efficiency. The quantum efficiency increases by increasing the total [Tb + Yb] concentration. The most significant yield was achieved with [Tb + Yb]=19%, the maximum quantum transfer efficiency obtained was 190% for glass-ceramic samples and 161% for glassy one.http://www.sciencedirect.com/science/article/pii/S2667113121000127Quantum cuttingDown-conversionRare earthGlass ceramicEnergy transfer |
| spellingShingle | L. Oulmaati S. Belmokhtar K. Bouziane A. Bouajaj M. Britel F. Enrichi C. Armellini A. Chiappini M. Ferrari Comparison of energy transfer between Terbium and Ytterbium ions in glass and glass ceramic: Application in photovoltaic Solar Energy Advances Quantum cutting Down-conversion Rare earth Glass ceramic Energy transfer |
| title | Comparison of energy transfer between Terbium and Ytterbium ions in glass and glass ceramic: Application in photovoltaic |
| title_full | Comparison of energy transfer between Terbium and Ytterbium ions in glass and glass ceramic: Application in photovoltaic |
| title_fullStr | Comparison of energy transfer between Terbium and Ytterbium ions in glass and glass ceramic: Application in photovoltaic |
| title_full_unstemmed | Comparison of energy transfer between Terbium and Ytterbium ions in glass and glass ceramic: Application in photovoltaic |
| title_short | Comparison of energy transfer between Terbium and Ytterbium ions in glass and glass ceramic: Application in photovoltaic |
| title_sort | comparison of energy transfer between terbium and ytterbium ions in glass and glass ceramic application in photovoltaic |
| topic | Quantum cutting Down-conversion Rare earth Glass ceramic Energy transfer |
| url | http://www.sciencedirect.com/science/article/pii/S2667113121000127 |
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