Enhanced pursuance of dye-sensitized solar cell for indoor and outdoor stability using reduced graphene oxide @ Mn2O3 nanocomposite

Herein, the present work focuses on the effective counter electrode for dye-sensitized solar cells. The bottom–up approach was adapted to synthesize Mn 2 O 3 nanorods via the hydrothermal method and the reduced graphene oxide was merged with Mn 2 O 3 to prepare a nanocomposite. The prepared nanocomp...

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Bibliographic Details
Published in:Carbon Letters 2024, 34(3), 25, pp.1021-1030
Main Authors: Arjun Kumar, B., Ramalingam, G., Al Omari, Salah Addin Burhan, Nallabala, Nanda Kumar Reddy, Sakthivel, P., Kabeer, Saifudeen, Sangaraju, Sambasivam
Format: Article
Language:English
Subjects:
Carbon
Characterization and Evaluation of Materials
Charge efficiency
Charge transfer
Chemistry and Materials Science
Composite materials
Dye-sensitized solar cells
Dyes
Efficiency
Electrodes
Electrolytes
Electrolytic cells
Energy
Fossil fuels
Fourier transforms
Functional groups
Graphene
High aspect ratio
Infrared spectroscopy
Iodides
Manganese oxides
Materials Engineering
Materials Science
Metal oxides
Morphology
Nanocomposites
Nanorods
Nanotechnology
Original Article
Outdoor air quality
Photomicrographs
Potassium
Quantum efficiency
Raman spectroscopy
Solar cells
Spectrum analysis
Stability tests
Sulfuric acid
Synthesis
Vibration
X-rays
자연과학일반
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Summary:Herein, the present work focuses on the effective counter electrode for dye-sensitized solar cells. The bottom–up approach was adapted to synthesize Mn 2 O 3 nanorods via the hydrothermal method and the reduced graphene oxide was merged with Mn 2 O 3 to prepare a nanocomposite. The prepared nanocomposites were subjected to physio-chemical and morphological characterizations which revealed the crystalline nature of Mn 2 O 3 nanorods. The purity level rGO was characterized using the Raman spectrum and the Fourier transform infrared spectroscopy employed to find the functional groups. The morphological micrographs were visualized using SEM and TEM and the high aspect ratio Mn 2 O 3 nanorods were observed with 5–7 nm and supported by rGO sheets. The electrocatalytic nature and corrosion properties of the counter electrode towards the iodide electrolyte were studied using a symmetrical cell. The as-synthesized nanocomposites were introduced as counter electrodes for DSSC and produced 4.11% of photoconversion efficiency with lower charge transfer resistance. The fabricated DSSC devices were undergone for stability tests for indoor and outdoor atmospheres, the DSSC stability showed 93% and 80% respectively for 150 days. Graphical abstract
ISSN:1976-4251
2233-4998
DOI:10.1007/s42823-023-00646-5