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Materials
Volume 18
Issue 24
10.3390/ma18245691
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

One-Step Electrodeposition of Hybrid Semiconductive CdSe/Nitrogen-Doped Carbon Dots Thin Films

by
Katerina Pappa
1,
Maria Myrto Dardavila
1,*,
Athanasios Tzanis
1,
Adamantia Zourou
2,
Christina Mitzithra
1,
Stylianos Hamilakis
3,
Zaphirios Loizos
1,
Konstantinos Kordatos
2 and
Constantina Kollia
1
1
Laboratory of General Chemistry, School of Chemical Engineering, National Technical University of Athens, 9, Iroon Polytechniou Str., Zografou Campus, 15780 Athens, Greece
2
Laboratory of Inorganic and Analytical Chemistry, School of Chemical Engineering, National Technical University of Athens, 9, Iroon Polytechniou Str., Zografou Campus, 15780 Athens, Greece
3
Laboratory of Organic Chemistry, School of Chemical Engineering, National Technical University of Athens, 9, Iroon Polytechniou Str., Zografou Campus, 15780 Athens, Greece
*
Author to whom correspondence should be addressed.
Materials 2025, 18(24), 5691; https://doi.org/10.3390/ma18245691
Submission received: 4 November 2025 / Revised: 12 December 2025 / Accepted: 16 December 2025 / Published: 18 December 2025
(This article belongs to the Special Issue Design and Electrochemical Synthesis of Multifunctional Surfaces)
Versions Notes

Abstract

Novel hybrid semiconducting thin films comprising CdSe with the addition of nitrogen-doped carbon dots (NCDs) were developed onto titanium substrates using a one-step electrocodeposition technique. The deposition took place using an acidic aqueous electrolytic bath containing hydrothermally produced ΝCDs under direct and pulse current regime. The specimens were studied using XRD, SEM-EDS, and UV-Vis spectroscopy techniques to determine their microstructural characteristics, surface morphology and composition and the energy gap, respectively. Their photochemical behavior was studied utilizing a photoelectrochemical cell (PEC). Variations in physical properties, along with significantly improved photoelectrochemical responses, were observed for the NCD-infused semiconductive thin films compared to their plain CdSe counterparts. These variations were highly affected by the incorporation rate of the NCDs in each thin film, as well as the imposed electrolysis conditions.
Keywords: hybrid semiconductive thin films; cadmium selenide; nitrogen-doped carbon dots; one-step electrocodeposition; photoelectrochemical cell; pulse current electrodeposition hybrid semiconductive thin films; cadmium selenide; nitrogen-doped carbon dots; one-step electrocodeposition; photoelectrochemical cell; pulse current electrodeposition

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MDPI and ACS Style

Pappa, K.; Dardavila, M.M.; Tzanis, A.; Zourou, A.; Mitzithra, C.; Hamilakis, S.; Loizos, Z.; Kordatos, K.; Kollia, C. One-Step Electrodeposition of Hybrid Semiconductive CdSe/Nitrogen-Doped Carbon Dots Thin Films. Materials 2025, 18, 5691. https://doi.org/10.3390/ma18245691

AMA Style

Pappa K, Dardavila MM, Tzanis A, Zourou A, Mitzithra C, Hamilakis S, Loizos Z, Kordatos K, Kollia C. One-Step Electrodeposition of Hybrid Semiconductive CdSe/Nitrogen-Doped Carbon Dots Thin Films. Materials. 2025; 18(24):5691. https://doi.org/10.3390/ma18245691

Chicago/Turabian Style

Pappa, Katerina, Maria Myrto Dardavila, Athanasios Tzanis, Adamantia Zourou, Christina Mitzithra, Stylianos Hamilakis, Zaphirios Loizos, Konstantinos Kordatos, and Constantina Kollia. 2025. "One-Step Electrodeposition of Hybrid Semiconductive CdSe/Nitrogen-Doped Carbon Dots Thin Films" Materials 18, no. 24: 5691. https://doi.org/10.3390/ma18245691

APA Style

Pappa, K., Dardavila, M. M., Tzanis, A., Zourou, A., Mitzithra, C., Hamilakis, S., Loizos, Z., Kordatos, K., & Kollia, C. (2025). One-Step Electrodeposition of Hybrid Semiconductive CdSe/Nitrogen-Doped Carbon Dots Thin Films. Materials, 18(24), 5691. https://doi.org/10.3390/ma18245691

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