Engineered core-shell nanofibers for electron transport study in dye-sensitized solar cells
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 ca...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2017-06-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4983181 |
| Summary: | 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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| ISSN: | 2158-3226 |