White light emitting diode and anti-counterfeiting applications of microwave assisted synthesized green fluorescent carbon dots derived from waste curry leaves
We have prepared waste curry leaves extract derived carbon dots (CL-C dots) by microwave assisted method. The synthesized CL-C dots were well characterized by many techniques. Using HR-TEM images, the size of the synthesized CL-C dots were determined to be 3.55 nm. CL-C dots exhibits green fluoresce...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-08-01
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| Series: | Results in Optics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666950122000396 |
| _version_ | 1811296017803378688 |
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| author | Muniyandi Maruthupandi Pandiaraja Varatharajan I.B. Shameem Banu Mohamad Hafiz Mamat Nagamalai Vasimalai |
| author_facet | Muniyandi Maruthupandi Pandiaraja Varatharajan I.B. Shameem Banu Mohamad Hafiz Mamat Nagamalai Vasimalai |
| author_sort | Muniyandi Maruthupandi |
| collection | DOAJ |
| description | We have prepared waste curry leaves extract derived carbon dots (CL-C dots) by microwave assisted method. The synthesized CL-C dots were well characterized by many techniques. Using HR-TEM images, the size of the synthesized CL-C dots were determined to be 3.55 nm. CL-C dots exhibits green fluorescence and obtained emission maximum at 425 nm upon the excitation at 340 nm. The green emissive CL-C dots quantum yield (QY) was determined to be 27.13%. The intensity ratio of ID/IG was, as calculated as 1.1 from the Raman spectrum. Moreover, CL-C dots were successfully applied for the preparation of the White Light Emitting Diode (WLED) device. The developed WLED has a colour coordinate value of (0.307, 0.354) and a colour correlated temperature of 6617 K. Finally, we have been used CL-C dots for anti-counterfeiting fluorescent ink application, it is a low-cost, simple-to-use substance that will eventually replace commercially available fluorescent inks. This research work offers a vision in the fields of materials science, WLED, energy, anti-counterfeiting and forensic science. |
| first_indexed | 2024-04-13T05:42:09Z |
| format | Article |
| id | doaj.art-4d7b7705e976481da885d8a29b763a20 |
| institution | Directory Open Access Journal |
| issn | 2666-9501 |
| language | English |
| last_indexed | 2024-04-13T05:42:09Z |
| publishDate | 2022-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Optics |
| spelling | doaj.art-4d7b7705e976481da885d8a29b763a202022-12-22T03:00:03ZengElsevierResults in Optics2666-95012022-08-018100249White light emitting diode and anti-counterfeiting applications of microwave assisted synthesized green fluorescent carbon dots derived from waste curry leavesMuniyandi Maruthupandi0Pandiaraja Varatharajan1I.B. Shameem Banu2Mohamad Hafiz Mamat3Nagamalai Vasimalai4Department of Chemistry, B.S. Abdur Rahman Crescent Institute of Science & Technology, Vandalur, Chennai 600 048, IndiaDepartment of Physics, B.S. Abdur Rahman Crescent Institute of Science & Technology, Vandalur Chennai-600 048, IndiaDepartment of Physics, B.S. Abdur Rahman Crescent Institute of Science & Technology, Vandalur Chennai-600 048, India; Corresponding authors.NANO-ElecTronic Centre (NET), School of Electrical Engineering, College of Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia; Corresponding authors.Department of Chemistry, B.S. Abdur Rahman Crescent Institute of Science & Technology, Vandalur, Chennai 600 048, India; Corresponding authors.We have prepared waste curry leaves extract derived carbon dots (CL-C dots) by microwave assisted method. The synthesized CL-C dots were well characterized by many techniques. Using HR-TEM images, the size of the synthesized CL-C dots were determined to be 3.55 nm. CL-C dots exhibits green fluorescence and obtained emission maximum at 425 nm upon the excitation at 340 nm. The green emissive CL-C dots quantum yield (QY) was determined to be 27.13%. The intensity ratio of ID/IG was, as calculated as 1.1 from the Raman spectrum. Moreover, CL-C dots were successfully applied for the preparation of the White Light Emitting Diode (WLED) device. The developed WLED has a colour coordinate value of (0.307, 0.354) and a colour correlated temperature of 6617 K. Finally, we have been used CL-C dots for anti-counterfeiting fluorescent ink application, it is a low-cost, simple-to-use substance that will eventually replace commercially available fluorescent inks. This research work offers a vision in the fields of materials science, WLED, energy, anti-counterfeiting and forensic science.http://www.sciencedirect.com/science/article/pii/S2666950122000396Curry leavesMicrowave methodCarbon dotsWhite LEDAnti-counterfeiting |
| spellingShingle | Muniyandi Maruthupandi Pandiaraja Varatharajan I.B. Shameem Banu Mohamad Hafiz Mamat Nagamalai Vasimalai White light emitting diode and anti-counterfeiting applications of microwave assisted synthesized green fluorescent carbon dots derived from waste curry leaves Results in Optics Curry leaves Microwave method Carbon dots White LED Anti-counterfeiting |
| title | White light emitting diode and anti-counterfeiting applications of microwave assisted synthesized green fluorescent carbon dots derived from waste curry leaves |
| title_full | White light emitting diode and anti-counterfeiting applications of microwave assisted synthesized green fluorescent carbon dots derived from waste curry leaves |
| title_fullStr | White light emitting diode and anti-counterfeiting applications of microwave assisted synthesized green fluorescent carbon dots derived from waste curry leaves |
| title_full_unstemmed | White light emitting diode and anti-counterfeiting applications of microwave assisted synthesized green fluorescent carbon dots derived from waste curry leaves |
| title_short | White light emitting diode and anti-counterfeiting applications of microwave assisted synthesized green fluorescent carbon dots derived from waste curry leaves |
| title_sort | white light emitting diode and anti counterfeiting applications of microwave assisted synthesized green fluorescent carbon dots derived from waste curry leaves |
| topic | Curry leaves Microwave method Carbon dots White LED Anti-counterfeiting |
| url | http://www.sciencedirect.com/science/article/pii/S2666950122000396 |
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