Abstract
We report for one step calcination synthesis of SnO2 integrated luminescent graphitic carbon nitride (g-C3N4) nanocomposite. X-ray diffraction, Fourier transform infrared spectroscopy, and Energy dispersive X-ray spectroscopy techniques were used to examine the structural, chemical, and elemental states of the nanocomposites. Morphological, surface elemental presence and chemical state of the elements were studied through the field emission scanning electron microscope and X-ray photoelectron spectroscopy. In-depth morphology was investigated using the High-resolution transmission electron microscope. UV-VIS and Photoluminescence spectroscopy have been employed to study the optical properties of the nanocomposites. Optical band gaps and optical conductivities of the nanocomposites were computed through Tauc’s plot using UV-VIS spectra.We observed that optical band gap reduces after insertion of the SnO2 nanoparticles in g-C3N4 owing to unsaturated defect states. Varying concentration of SnO2 nanoparticles were mixed with g-C3N4 so as to enhance PL intensity of the pure g-C3N4. Highest PL intensity was recorded for 15% g-C3N4/SnO2 nanocomposite lying in the blue region. Maximum color purity was estimated 63.8% for optimized nanocomposite. Blue light emission (480 nm) fortified through Forster resonance energy transfer mechanism. Thermal stability of the said nanocomposite (15% g-C3N4/SnO2) was excelled as compared to pure g-C3N4. Above mentioned properties manifested that the optimized material stands suitable for markedly robust emissive layer for its use in optoelectronic devices.
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Acknowledgements
The authors are thankful to the Indian Institute of Technology (Indian School of Mines), Dhanbad, India, for providing financial support.
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SK: Conceptualization, Validation of calculations and results, Software, Data curation, Formal analysis, Writing—original draft. RBC: Supervision, Writing—review and editing, Funding acquisition, Project administration, Resources.
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Kumar, S., Choudhary, R.B. FRET Mechanism of SnO2 Integrated Luminescent g-C3N4 Nanocomposite and Its Robust Chemical, Optical and Thermal States for Emissive Layer Application. J Inorg Organomet Polym 33, 599–610 (2023). https://doi.org/10.1007/s10904-022-02524-5
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DOI: https://doi.org/10.1007/s10904-022-02524-5