Engineered core-shell nanofibers for electron transport study in dye-sensitized solar cells

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.

Description

© 2017 Author(s). cc-by

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Citation

Shabdan, Y., Ronasi, A., Coulibaly, P., Moniruddin, M., & Nuraje, N.. 2017. Engineered core-shell nanofibers for electron transport study in dye-sensitized solar cells. AIP Advances, 7(6). https://doi.org/10.1063/1.4983181

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