Structural, opto-electronic, magnetic and photoluminescence properties of samarium and gadolinium iron garnet nanomaterials for LED and opto-electronics applications
Abstract Samarium Iron Garnet (SIG) and Gadolinium Iron Garnet (GIG) functional materials, were synthesized by low-cost chemical-based sol-gel method. XRD study found crystal structure of sizes ranging between 36 nm and 48 nm for GIG and between 35 nm and 65 nm for SIG. Photoluminescence property sh...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Springer
2025-08-01
|
| Series: | Discover Materials |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s43939-025-00336-1 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849331776851279872 |
|---|---|
| author | Amit kumar Rakesh Kumar Singh Kamesh Kumar Nishant Kumar Abhay Kr Aman Bibhuti Bikramaditya |
| author_facet | Amit kumar Rakesh Kumar Singh Kamesh Kumar Nishant Kumar Abhay Kr Aman Bibhuti Bikramaditya |
| author_sort | Amit kumar |
| collection | DOAJ |
| description | Abstract Samarium Iron Garnet (SIG) and Gadolinium Iron Garnet (GIG) functional materials, were synthesized by low-cost chemical-based sol-gel method. XRD study found crystal structure of sizes ranging between 36 nm and 48 nm for GIG and between 35 nm and 65 nm for SIG. Photoluminescence property shows that both materials exhibit intense blue light emission when excited by 200 nm radiation in the visible region. The energy band gap was found to be 1.36 eV to 1.44 eV respectively at 700 °C and 900 °C for SIG nanomaterials, whereas the band gap for GIG nanomaterials was found to be in the range of 1.425 eV to 1.375 eV respectively at 700 °C and 900 °C which is in the range of GaAs have been used in LED applications. These result shows that the band gap is a function of crystallite size and can be used in Light emitting diodes application under controlled specific annealing temperature. The magnetic behavior of SIG nanomaterial shows that Coercivity and magnetization decreases but retentivity increases with the increase of annealing temperature (from 700oC to 900oC).The magnetization curve found like S-like structure. Whereas for GIG nanomaterials, magnetization and retentivity decreases but coercivity increases with the increase of annealing temperature from 700oC to 900oC. The coercivity and saturation magnetization (118.72 Oe and 0.685 emu/gm) value of the prepared materials is very low showing soft magnetic behavior. This property may be useful for its application in development of electrical devices such as transformer cores (for sufficient energy transfer) and microwave devices (for signal processing, Inductors (to store magnetic energy and read-write heads in the magnetic storage. |
| format | Article |
| id | doaj-art-e47429b523ce41fb9e52f8cb5381695e |
| institution | Kabale University |
| issn | 2730-7727 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Springer |
| record_format | Article |
| series | Discover Materials |
| spelling | doaj-art-e47429b523ce41fb9e52f8cb5381695e2025-08-20T03:46:24ZengSpringerDiscover Materials2730-77272025-08-015111610.1007/s43939-025-00336-1Structural, opto-electronic, magnetic and photoluminescence properties of samarium and gadolinium iron garnet nanomaterials for LED and opto-electronics applicationsAmit kumar0Rakesh Kumar Singh1Kamesh Kumar2Nishant Kumar3Abhay Kr Aman4Bibhuti Bikramaditya5Center for Nanoscience and Nanotechnology, Aryabhatta Knowledge UniversityCenter for Nanoscience and Nanotechnology, Aryabhatta Knowledge UniversityMaulana Mazharul Haque Arabic & Persian UniversityCenter for Nanoscience and Nanotechnology, Aryabhatta Knowledge UniversityCenter for Nanoscience and Nanotechnology, Aryabhatta Knowledge UniversityCenter for Nanoscience and Nanotechnology, Aryabhatta Knowledge UniversityAbstract Samarium Iron Garnet (SIG) and Gadolinium Iron Garnet (GIG) functional materials, were synthesized by low-cost chemical-based sol-gel method. XRD study found crystal structure of sizes ranging between 36 nm and 48 nm for GIG and between 35 nm and 65 nm for SIG. Photoluminescence property shows that both materials exhibit intense blue light emission when excited by 200 nm radiation in the visible region. The energy band gap was found to be 1.36 eV to 1.44 eV respectively at 700 °C and 900 °C for SIG nanomaterials, whereas the band gap for GIG nanomaterials was found to be in the range of 1.425 eV to 1.375 eV respectively at 700 °C and 900 °C which is in the range of GaAs have been used in LED applications. These result shows that the band gap is a function of crystallite size and can be used in Light emitting diodes application under controlled specific annealing temperature. The magnetic behavior of SIG nanomaterial shows that Coercivity and magnetization decreases but retentivity increases with the increase of annealing temperature (from 700oC to 900oC).The magnetization curve found like S-like structure. Whereas for GIG nanomaterials, magnetization and retentivity decreases but coercivity increases with the increase of annealing temperature from 700oC to 900oC. The coercivity and saturation magnetization (118.72 Oe and 0.685 emu/gm) value of the prepared materials is very low showing soft magnetic behavior. This property may be useful for its application in development of electrical devices such as transformer cores (for sufficient energy transfer) and microwave devices (for signal processing, Inductors (to store magnetic energy and read-write heads in the magnetic storage.https://doi.org/10.1007/s43939-025-00336-1GarnetNanomaterialsOpto-electronicsMagneticLuminescent |
| spellingShingle | Amit kumar Rakesh Kumar Singh Kamesh Kumar Nishant Kumar Abhay Kr Aman Bibhuti Bikramaditya Structural, opto-electronic, magnetic and photoluminescence properties of samarium and gadolinium iron garnet nanomaterials for LED and opto-electronics applications Discover Materials Garnet Nanomaterials Opto-electronics Magnetic Luminescent |
| title | Structural, opto-electronic, magnetic and photoluminescence properties of samarium and gadolinium iron garnet nanomaterials for LED and opto-electronics applications |
| title_full | Structural, opto-electronic, magnetic and photoluminescence properties of samarium and gadolinium iron garnet nanomaterials for LED and opto-electronics applications |
| title_fullStr | Structural, opto-electronic, magnetic and photoluminescence properties of samarium and gadolinium iron garnet nanomaterials for LED and opto-electronics applications |
| title_full_unstemmed | Structural, opto-electronic, magnetic and photoluminescence properties of samarium and gadolinium iron garnet nanomaterials for LED and opto-electronics applications |
| title_short | Structural, opto-electronic, magnetic and photoluminescence properties of samarium and gadolinium iron garnet nanomaterials for LED and opto-electronics applications |
| title_sort | structural opto electronic magnetic and photoluminescence properties of samarium and gadolinium iron garnet nanomaterials for led and opto electronics applications |
| topic | Garnet Nanomaterials Opto-electronics Magnetic Luminescent |
| url | https://doi.org/10.1007/s43939-025-00336-1 |
| work_keys_str_mv | AT amitkumar structuraloptoelectronicmagneticandphotoluminescencepropertiesofsamariumandgadoliniumirongarnetnanomaterialsforledandoptoelectronicsapplications AT rakeshkumarsingh structuraloptoelectronicmagneticandphotoluminescencepropertiesofsamariumandgadoliniumirongarnetnanomaterialsforledandoptoelectronicsapplications AT kameshkumar structuraloptoelectronicmagneticandphotoluminescencepropertiesofsamariumandgadoliniumirongarnetnanomaterialsforledandoptoelectronicsapplications AT nishantkumar structuraloptoelectronicmagneticandphotoluminescencepropertiesofsamariumandgadoliniumirongarnetnanomaterialsforledandoptoelectronicsapplications AT abhaykraman structuraloptoelectronicmagneticandphotoluminescencepropertiesofsamariumandgadoliniumirongarnetnanomaterialsforledandoptoelectronicsapplications AT bibhutibikramaditya structuraloptoelectronicmagneticandphotoluminescencepropertiesofsamariumandgadoliniumirongarnetnanomaterialsforledandoptoelectronicsapplications |