Na+ doped CuO: A new paradigm electrode material for high performance supercapacitors
- Title
- Na+ doped CuO: A new paradigm electrode material for high performance supercapacitors
- Creator
- Jos B.; Babu C.R.; Naduvath J.; Shanu A.S.; Shaji S.; Hossain A.; Anila E.I.
- Description
- This study investigates the influence of sodium doping on the properties of cupric oxide (CuO) thin films synthesized via spray pyrolysis. Comprehensive characterization was conducted using X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDAX), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FESEM), Raman spectroscopy, Hall effect measurements, and electrochemical studies. All films exhibited p-type conductivity, with an optical band gap variation from 1.53 to 1.73 eV. XRD analysis confirmed the dominance of monoclinic CuO, with minor phases of Cu2O and Cu4O3. EDAX and XPS verified the incorporation of Cu, O, and Na elements. FESEM revealed a densely packed morphology with uniform particle distribution and rough surfaces in the electrically optimized film. The Raman spectra of doped samples showed increased intensity and sharpness, attributed to Na + ion-induced polarizability enhancement. Hall effect measurements indicated a tenfold decrease in carrier concentration and a more than tenfold increase in mobility upon sodium doping. Films doped with 4 at.% sodium exhibited the lowest resistivity. Additionally, Na doping enhanced the electrochemical performance of CuO. These findings demonstrate that sodium doping significantly enhances the electrical, optical and electrochemical properties of CuO thin films, making them suitable for applications in optoelectronic devices and supercapacitors. 2024 Elsevier Ltd and Techna Group S.r.l.
- Source
- Ceramics International, Vol-50, No. 21, pp. 43627-43634.
- Date
- 2024-01-01
- Publisher
- Elsevier Ltd
- Subject
- Cupric oxide; Electrochemical studies; Raman spectrum enhancement; Sodium doping; Spray-pyrolysis; Urbach tailing
- Coverage
- Jos B., Optoelectronic and Nanomaterials' Research Laboratory, Department of Physics, Union Christian College, Kerala, Aluva, 683102, India; Babu C.R., Department of Physics and Electronics, CHRIST (Deemed to be University), Karnataka, Bangalore, 560029, India; Naduvath J., Department of Physics, S t. Thomas College (Autonomous), University of Calicut, Kerala, Thrissur, India; Shanu A.S., Department of Physics, S t. Thomas College (Autonomous), University of Calicut, Kerala, Thrissur, India; Shaji S., Universidad Automa de Nuevo Le(UANL), Facultad de IngenierMecica y Eltrica (FIME), Av. Universidad, Cd. Universitaria, Nuevo Le, San Nicol de los Garza, 66455, Mexico; Hossain A., Smart Materials Research Institute, Southern Federal University, Sladkova 178/24, Rostov-on-Don, 344090, Russian Federation; Anila E.I., Department of Physics and Electronics, CHRIST (Deemed to be University), Karnataka, Bangalore, 560029, India
- Rights
- Restricted Access
- Relation
- ISSN: 2728842; CODEN: CINND
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Jos B.; Babu C.R.; Naduvath J.; Shanu A.S.; Shaji S.; Hossain A.; Anila E.I., “Na+ doped CuO: A new paradigm electrode material for high performance supercapacitors,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 26, 2025, https://archives.christuniversity.in/items/show/12769.