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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2026-06-12 0:10 |
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Conference: Bucharest University Faculty of Physics 2026 Meeting
Section: Polymer Physics
Title:
One-Step Fabrication of P2O5-loaded-TiO2 Composite with Trace Amounts of rGO as Thin Films for Enhanced Photovoltaic and Photocatalytic Performance
Authors:
Ana-Maria Florea1,2, Ana-Maria Iordache1, Stefan Caramizoiu1,3, Bogdan-Ionut Bita1,2, Stefan-Marian Iordache1
*
Affiliation:
1) Optospintronics Department, National Institute of Research and Development for Optoelectronics - INOE 2000, 409 Atomistilor Street, Magurele, 077125, Romania;
2) Department of Electricity, Solid-State Physics and Biophysics, Faculty of Physics, University of Bucharest, 405 Atomistilor Street, P.O. Box MG-11, 077125 Magurele, Romania;
3) Department of Structure of Matter, Atmospheric and Earth Physics, Astrophysics,Faculty of Physics, University of Bucharest, 405 Atomistilor Street, P.O. Box MG-11, 077125 Magurele, Romania.
E-mail
ana.florea@inoe.ro
Keywords:
TiO₂, P2O5, Thin Film Synthesis, Reduced Graphene Oxide, Optoelectronic Properties
Abstract:
Our work presents a one-step sol-gel method for fabricating P₂O₅-loaded TiO₂/rGO nanocomposite thin films with enhanced photocatalytic and photovoltaic properties. Thin films containing 0.2–0.7 wt% reduced graphene oxide (rGO) were deposited on glass substrates by spin coating and thermally treated at 400–500 °C. FTIR, UV–Vis, and SEM analyses confirmed uniform morphology and well-defined interfaces. The synergistic effect of P₂O₅ and rGO improved charge separation, reduced electron–hole recombination, and extended visible-light absorption. Film performance was strongly influenced by rGO content, thickness, and annealing temperature. The developed nanocomposite films provide a simple, cost-effective, and scalable approach for photovoltaic and photocatalytic environmental applications.
Acknowledgement:
The authors were supported by the Core Program with the National Research Development and Innovation Plan 2022-2027, carried out with the support of MER, project no. PN 23 05.
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