Photoluminescence and electrochemical performances of Eu3+doped La10Si6O27 nanophosphor: Display and electrochemical sensor applications
The current work involves the synthesis of a series of Eu3+ (1–11 mol%) doped La10Si6O27 nanophosphors (ELNPs) by solution combustion method using oxalyl dihydrozil (ODH) as a fuel for the first time. The PXRD studies revealed the average crystallite size in the range 15–35 nm for ELNPs. DRS studies...
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Elsevier
2020-11-01
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| Series: | Applied Surface Science Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666523920300118 |
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| author | A. Naveen Kumar D.M. Jnaneshwara M.R. Anil Kumar N. Basavaraju C.R. Ravikumar H.C. Ananda Murthy H. Nagabhushana K.M. Girish S. Ashwini Ramachandra Naik |
| author_facet | A. Naveen Kumar D.M. Jnaneshwara M.R. Anil Kumar N. Basavaraju C.R. Ravikumar H.C. Ananda Murthy H. Nagabhushana K.M. Girish S. Ashwini Ramachandra Naik |
| author_sort | A. Naveen Kumar |
| collection | DOAJ |
| description | The current work involves the synthesis of a series of Eu3+ (1–11 mol%) doped La10Si6O27 nanophosphors (ELNPs) by solution combustion method using oxalyl dihydrozil (ODH) as a fuel for the first time. The PXRD studies revealed the average crystallite size in the range 15–35 nm for ELNPs. DRS studies revealed the energy gap of Eu3+ (1–11 mol %) doped La10Si6O27 is ~5.4 eV. The Photoluminescence (PL) studies of the ELNPs showed all the characteristic emission of Eu3+ cations and optimal emission intensity was observed for 5 mol % concentration of Eu3+ ions. The excitation maxima detected at 360 nm, 379 nm, 391 nm, 400 nm, 413 nm and 462 nm were conformed to transitions from 7F0→5G3, 5G4, 5L6, 5D4, 5D3 and 5D2 states of Eu3+ ions respectively. The observed intensities of PL transitions clearly indicated great potentiality for the fabrication of blue/near UV-LED excited phosphor for WLEDs. The calculated CIE chromaticity coordinates confirm the red emission and were depicted in the CIE diagram. The paracetamol and penegra materials were effectively sensed by the prepared carbon paste electrode of Eu3+ (3 mol %) doped La10Si6O27 as revealed by cyclic voltammetric and EIS studies. All the above results show that the synthesized ELNPs can be a potential candidate for display and electrochemical sensor applications. |
| first_indexed | 2024-12-21T18:56:25Z |
| format | Article |
| id | doaj.art-ca69fb9f7fc54dff88a58069a4f3b62c |
| institution | Directory Open Access Journal |
| issn | 2666-5239 |
| language | English |
| last_indexed | 2024-12-21T18:56:25Z |
| publishDate | 2020-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Applied Surface Science Advances |
| spelling | doaj.art-ca69fb9f7fc54dff88a58069a4f3b62c2022-12-21T18:53:37ZengElsevierApplied Surface Science Advances2666-52392020-11-011100026Photoluminescence and electrochemical performances of Eu3+doped La10Si6O27 nanophosphor: Display and electrochemical sensor applicationsA. Naveen Kumar0D.M. Jnaneshwara1M.R. Anil Kumar2N. Basavaraju3C.R. Ravikumar4H.C. Ananda Murthy5H. Nagabhushana6K.M. Girish7S. Ashwini8Ramachandra Naik9Department of Physics, SJB Institute of Technology, VTU, Bengaluru 560060, India; Research Center, Department of Science, East West Institute of Technology, VTU, Bengaluru 560091, IndiaDepartment of Physics, SJB Institute of Technology, VTU, Bengaluru 560060, India; Corresponding authors.Research Center, Department of Science, East West Institute of Technology, VTU, Bengaluru 560091, IndiaResearch Center, Department of Science, East West Institute of Technology, VTU, Bengaluru 560091, IndiaResearch Center, Department of Science, East West Institute of Technology, VTU, Bengaluru 560091, India; Corresponding authors.Department of Applied Chemistry, School of Applied Natural Sciences, Adama Science and Technology University, P.O. Box: 1888, Adama, EthiopiaCNR Rao Centre for Advanced Materials, Tumkur University, Tumkur 572103, Karnataka, IndiaDepartment of Physics, Dayanand Sagar Academy of Technology and Management, Bengaluru 560082, IndiaDepartment of Physics, Channabasaveshwara Institute of Technology, Gubbi 572216, IndiaDepartment of Physics, New Horizon College of Engineering, Bengaluru 560103, IndiaThe current work involves the synthesis of a series of Eu3+ (1–11 mol%) doped La10Si6O27 nanophosphors (ELNPs) by solution combustion method using oxalyl dihydrozil (ODH) as a fuel for the first time. The PXRD studies revealed the average crystallite size in the range 15–35 nm for ELNPs. DRS studies revealed the energy gap of Eu3+ (1–11 mol %) doped La10Si6O27 is ~5.4 eV. The Photoluminescence (PL) studies of the ELNPs showed all the characteristic emission of Eu3+ cations and optimal emission intensity was observed for 5 mol % concentration of Eu3+ ions. The excitation maxima detected at 360 nm, 379 nm, 391 nm, 400 nm, 413 nm and 462 nm were conformed to transitions from 7F0→5G3, 5G4, 5L6, 5D4, 5D3 and 5D2 states of Eu3+ ions respectively. The observed intensities of PL transitions clearly indicated great potentiality for the fabrication of blue/near UV-LED excited phosphor for WLEDs. The calculated CIE chromaticity coordinates confirm the red emission and were depicted in the CIE diagram. The paracetamol and penegra materials were effectively sensed by the prepared carbon paste electrode of Eu3+ (3 mol %) doped La10Si6O27 as revealed by cyclic voltammetric and EIS studies. All the above results show that the synthesized ELNPs can be a potential candidate for display and electrochemical sensor applications.http://www.sciencedirect.com/science/article/pii/S2666523920300118Eu3+ doped La10Si6O27Solution combustionPhotoluminescenceCIESensor |
| spellingShingle | A. Naveen Kumar D.M. Jnaneshwara M.R. Anil Kumar N. Basavaraju C.R. Ravikumar H.C. Ananda Murthy H. Nagabhushana K.M. Girish S. Ashwini Ramachandra Naik Photoluminescence and electrochemical performances of Eu3+doped La10Si6O27 nanophosphor: Display and electrochemical sensor applications Applied Surface Science Advances Eu3+ doped La10Si6O27 Solution combustion Photoluminescence CIE Sensor |
| title | Photoluminescence and electrochemical performances of Eu3+doped La10Si6O27 nanophosphor: Display and electrochemical sensor applications |
| title_full | Photoluminescence and electrochemical performances of Eu3+doped La10Si6O27 nanophosphor: Display and electrochemical sensor applications |
| title_fullStr | Photoluminescence and electrochemical performances of Eu3+doped La10Si6O27 nanophosphor: Display and electrochemical sensor applications |
| title_full_unstemmed | Photoluminescence and electrochemical performances of Eu3+doped La10Si6O27 nanophosphor: Display and electrochemical sensor applications |
| title_short | Photoluminescence and electrochemical performances of Eu3+doped La10Si6O27 nanophosphor: Display and electrochemical sensor applications |
| title_sort | photoluminescence and electrochemical performances of eu3 doped la10si6o27 nanophosphor display and electrochemical sensor applications |
| topic | Eu3+ doped La10Si6O27 Solution combustion Photoluminescence CIE Sensor |
| url | http://www.sciencedirect.com/science/article/pii/S2666523920300118 |
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