An analytical disquisition on the nonlinear optical responses of carbon quantum dots engineered by diverse synthesis methodologies
Carbon quantum dots (CQDs) are highly promising nanomaterials known for their unique optical and electronic properties, which are crucial for applications in photonics, bioimaging, optoelectronics, etc. This study investigates the nonlinear optical (NLO) responses of CQDs synthesized via three diffe...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-03-01
|
| Series: | Nano Trends |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666978125000108 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832576442902249472 |
|---|---|
| author | Rashi Mahendra Patil Akshay Raj R Shyamal Mondal Tejashree Bhave Appala Venkata Ramana Murthy |
| author_facet | Rashi Mahendra Patil Akshay Raj R Shyamal Mondal Tejashree Bhave Appala Venkata Ramana Murthy |
| author_sort | Rashi Mahendra Patil |
| collection | DOAJ |
| description | Carbon quantum dots (CQDs) are highly promising nanomaterials known for their unique optical and electronic properties, which are crucial for applications in photonics, bioimaging, optoelectronics, etc. This study investigates the nonlinear optical (NLO) responses of CQDs synthesized via three different methods, namely, hydrothermal, microwave-assisted, and green synthesis. The three different synthesized CQDs have shown size-dependent optical and photoluminescence properties. The z-scan technique was employed for measuring the corresponding nonlinear absorption coefficient and nonlinear refractive index. Hydrothermal synthesis produced CQDs with strong NLO responses (χ(3) = 4.14 × 10–7 esu) due to high crystallinity and significant surface functionalization, whereas microwave-assisted synthesis resulted (χ(3) = 3.97 × 10–7 esu) in size-dependent NLO variability. Meanwhile, the green synthesis method, utilizing natural resources and organic precursors which replaced by chemical capping agents such as PEG, showed a moderate NLO response (χ(3) = 2.72 × 10–7 esu), influenced by diverse surface functionalities. This comparative analysis emphasizes the crucial role of synthesis methods in tailoring CQDs for specific NLO applications, providing insights to optimize their synthesis for enhanced performance in advanced optical technologies. |
| format | Article |
| id | doaj-art-da113cc697ec429ebe742a04d4674dff |
| institution | Kabale University |
| issn | 2666-9781 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nano Trends |
| spelling | doaj-art-da113cc697ec429ebe742a04d4674dff2025-01-31T05:12:36ZengElsevierNano Trends2666-97812025-03-019100081An analytical disquisition on the nonlinear optical responses of carbon quantum dots engineered by diverse synthesis methodologiesRashi Mahendra Patil0Akshay Raj R1Shyamal Mondal2Tejashree Bhave3Appala Venkata Ramana Murthy4Defence Institute of Advanced Technology (DIAT), Pune, IndiaDefence Institute of Advanced Technology (DIAT), Pune, IndiaDefence Institute of Advanced Technology (DIAT), Pune, IndiaCorresponding author; Defence Institute of Advanced Technology (DIAT), Pune, IndiaCorresponding author; Defence Institute of Advanced Technology (DIAT), Pune, IndiaCarbon quantum dots (CQDs) are highly promising nanomaterials known for their unique optical and electronic properties, which are crucial for applications in photonics, bioimaging, optoelectronics, etc. This study investigates the nonlinear optical (NLO) responses of CQDs synthesized via three different methods, namely, hydrothermal, microwave-assisted, and green synthesis. The three different synthesized CQDs have shown size-dependent optical and photoluminescence properties. The z-scan technique was employed for measuring the corresponding nonlinear absorption coefficient and nonlinear refractive index. Hydrothermal synthesis produced CQDs with strong NLO responses (χ(3) = 4.14 × 10–7 esu) due to high crystallinity and significant surface functionalization, whereas microwave-assisted synthesis resulted (χ(3) = 3.97 × 10–7 esu) in size-dependent NLO variability. Meanwhile, the green synthesis method, utilizing natural resources and organic precursors which replaced by chemical capping agents such as PEG, showed a moderate NLO response (χ(3) = 2.72 × 10–7 esu), influenced by diverse surface functionalities. This comparative analysis emphasizes the crucial role of synthesis methods in tailoring CQDs for specific NLO applications, providing insights to optimize their synthesis for enhanced performance in advanced optical technologies.http://www.sciencedirect.com/science/article/pii/S2666978125000108Carbon quantum dots (CQDs)Nonlinear optical responsesZ-scanSynthesis method |
| spellingShingle | Rashi Mahendra Patil Akshay Raj R Shyamal Mondal Tejashree Bhave Appala Venkata Ramana Murthy An analytical disquisition on the nonlinear optical responses of carbon quantum dots engineered by diverse synthesis methodologies Nano Trends Carbon quantum dots (CQDs) Nonlinear optical responses Z-scan Synthesis method |
| title | An analytical disquisition on the nonlinear optical responses of carbon quantum dots engineered by diverse synthesis methodologies |
| title_full | An analytical disquisition on the nonlinear optical responses of carbon quantum dots engineered by diverse synthesis methodologies |
| title_fullStr | An analytical disquisition on the nonlinear optical responses of carbon quantum dots engineered by diverse synthesis methodologies |
| title_full_unstemmed | An analytical disquisition on the nonlinear optical responses of carbon quantum dots engineered by diverse synthesis methodologies |
| title_short | An analytical disquisition on the nonlinear optical responses of carbon quantum dots engineered by diverse synthesis methodologies |
| title_sort | analytical disquisition on the nonlinear optical responses of carbon quantum dots engineered by diverse synthesis methodologies |
| topic | Carbon quantum dots (CQDs) Nonlinear optical responses Z-scan Synthesis method |
| url | http://www.sciencedirect.com/science/article/pii/S2666978125000108 |
| work_keys_str_mv | AT rashimahendrapatil ananalyticaldisquisitiononthenonlinearopticalresponsesofcarbonquantumdotsengineeredbydiversesynthesismethodologies AT akshayrajr ananalyticaldisquisitiononthenonlinearopticalresponsesofcarbonquantumdotsengineeredbydiversesynthesismethodologies AT shyamalmondal ananalyticaldisquisitiononthenonlinearopticalresponsesofcarbonquantumdotsengineeredbydiversesynthesismethodologies AT tejashreebhave ananalyticaldisquisitiononthenonlinearopticalresponsesofcarbonquantumdotsengineeredbydiversesynthesismethodologies AT appalavenkataramanamurthy ananalyticaldisquisitiononthenonlinearopticalresponsesofcarbonquantumdotsengineeredbydiversesynthesismethodologies AT rashimahendrapatil analyticaldisquisitiononthenonlinearopticalresponsesofcarbonquantumdotsengineeredbydiversesynthesismethodologies AT akshayrajr analyticaldisquisitiononthenonlinearopticalresponsesofcarbonquantumdotsengineeredbydiversesynthesismethodologies AT shyamalmondal analyticaldisquisitiononthenonlinearopticalresponsesofcarbonquantumdotsengineeredbydiversesynthesismethodologies AT tejashreebhave analyticaldisquisitiononthenonlinearopticalresponsesofcarbonquantumdotsengineeredbydiversesynthesismethodologies AT appalavenkataramanamurthy analyticaldisquisitiononthenonlinearopticalresponsesofcarbonquantumdotsengineeredbydiversesynthesismethodologies |