Engineered core-shell nanofibers for electron transport study in dye-sensitized solar cells
Source abstract
Abstract
In this study, a unique approach was developed to synthesize 1-D core-shell nanofibers of carbon nanotubes (CNTs) and TiO2 using combination of coaxial electrospinning and sol-gel technique. Diameters of the fabricated core-shell single wall carbon nanotube-TiO2 (SWCNT-TiO2) and multi wall carbon nanotube-TiO2 (MWCNT-TiO2) nano-composite fibers were between 50-100nm. Energy dispersive spectroscopy (EDS) and X-ray photon spectroscopy (XPS) were applied to confirm encapsulation of carbon nanotube (CNT) in the core-shell structure. Electron transport properties of both SWCNT-TiO2 and MWCNT-TiO2 in the Dye-sensitized solar cells (DSSCs) were studied for the first time. It was found that SWCNT-TiO2 based DSSC provided higher short circuit current relative to MWCNT-TiO2, which was explained by I-V and bode plots. These findings were further illustrated by semi-conductive properties of SWCNT.
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Research context
OpenAlex topics: TiO2 Photocatalysis and Solar Cells · Conducting polymers and applications · Transition Metal Oxide Nanomaterials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Al-Farabi Kazakh National University 1 Department of Physics and Technology, , Almaty, Kazakhstan
Texas Tech University 2 Department of Chemical Engineering, , Lubbock, Texas 79409, USA
Funding
American Chemical Society Petroleum Research Fund
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