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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2025-07-06 15:04 |
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Conference: Bucharest University Faculty of Physics 2025 Meeting
Section: Polymer Physics
Title:
P2O5 Effect on Optical Properties of Nano-Structured Graphene Doped Zinc Phosphate Films
Authors:
Cristina Ileana VASILIU (1), Ana-Maria IORDACHE (1), Irinela CHILIBON (1), Stefan CARAMIZOIU (1,2), Ana-Maria FLOREA (1,3), Bogdan BITA (1,3), Stefan-Marian IORDACHE (1)
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Affiliation:
(1) Optospintronics Department, National Institute of Research and Development for Optoelectronics - INOE 2000, 409 Atomistilor, 077125, Magurele, Romania
(2) Department of “Structure of Matter, Atmospheric and Earth Physics, Astrophysics”, Faculty of Physics, University of Bucharest, 405 Atomistilor, 077125, Magurele, Romania;
(3) Department of Electricity, Department of Electricity, Solid State Physics and Biophysics, Faculty of Physics, University of Bucharest, 405 Atomistilor, 077125, Magurele, Romania;
E-mail
icvasiliu@inoe.ro
Keywords:
P2O5, sol-gel, graphene, thin films, photoluminescence
Abstract:
A convenient and low-cost sol–gel approach for the one-step synthesis of ZnO–P2O5–rGO nanostructures with tuned bandgap and fluorescence was achieved. The hybrid nanostructures exploit the efficient energy transfer from the ZnO to carbon nanostructures and the phosphorous oxide properties, as promising candidates not only for energy-harvesting applications but also for use as biosensors, photodetectors and low-temperature thermal imaging. P2O5 was noticed to tune the bandgap and the fluorescence emissions of the nanostructured films of ZnO–P2O5–rGO. The electrical measurements performed at room temperature showed that that a 10/90 molar ratio of P2O5/ZnO decreases the resistivity almost seven-fold compared with rGO-doped ZnO films.
Acknowledgement:
This work was carried out through the Core Program with the National Research Development and Innovation Plan 2022-2027, carried out with the support of MCID, project no. PN 23 05.
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