Bibliographic Details
| Title: |
Synthesis and investigation of optical properties of amino functionalized graphene quantum dots thin film. |
| Authors: |
Kumar, Adesh1 (AUTHOR) kumaradesh1000@gmail.com, Azad, Seema1 (AUTHOR), Chand, Subhash1 (AUTHOR) |
| Source: |
AIP Conference Proceedings. 2025, Vol. 3198 Issue 1, p1-4. 4p. |
| Subject Terms: |
*THIN films, *HONEYCOMB structures, *SUBSTRATES (Materials science), *BAND gaps, *OPTICAL properties, *QUANTUM dots |
| Abstract: |
This study includes the synthesis and investigation of optical properties of nitrogen-doped graphene quantum dots thin film on quartz substrate prepared using hydrothermal and spin-coating methods. The XRD results had confirmed the hexagonal honeycomb structure of prepared sample. The average crystallite size calculated using Debye-Scherrer's formula has been found to be 2.879 nm. Further, the UV - Visible study shows a high absorption peak at 361 nm with direct band gap of 2.67 eV calculated using Tauc's plot. It was observed that prepared thin film shows high optical transmittance of 87% in the visible region. In addition to this, the PL emission spectrum has been studied at different excitation wavelength of 325 nm, 340 nm, 360 nm and 380 nm which indicate the high luminescent properties of thin film in the visible region. It was found that the emission intensity had increased with the increase in excitation wavelength up to 380 nm which shows its applicability of these materials in the photo luminescent devices. [ABSTRACT FROM AUTHOR] |
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| Database: |
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