Optical, morphology and electrical properties of In2O3 incorporating acid-treated single-walled carbon nanotubes based DSSC

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Abstract

This study focuses on the influence of an acid treatment process of single-walled carbon nanotubes (SWCNTs) in In2O3-based dye-sensitized solar cells (DSSCs). Pure In2O3, In2O3-SWCNTs with acid treatment and In2O3-SWCNTs without acid treatment were prepared using the sol-gel method via a spin coating technique annealed at 450°C. The optical, morphology and electrical properties of the photoanodes were characterized by means of UV-Vis analysis, atomic force microscopy and field-emission scanning electron microscopy, and J-V curve measurements, respectively. The optical band gap obtained through UV-Vis analysis showed that the acid treatment process modified the band gap of the photoanode, which enhances the V oc of the DSSCs. In addition, In2O3-SWCNTs with acid treatment possess a porous structure that improves the power conversion efficiency (PCE) of the DSSCs. In addition, the diameter of acid-treated SWCNTs was reduced compared to pristine SWCNTs. In2O3-SWCNTs with acid treatment exhibited the highest PCE of 1.40% with J sc of 7.6 mA cm-2, V oc of 0.51 V, and fill factor of 0.36. The increment in V oc is due to the higher band gap obtained through the UV-Vis absorption spectrum. Moreover, In2O3-SWCNTs with acid treatment has a higher electron lifetime with a higher effective diffusion coefficient that slows down the recombination rate and speeds up the electron transport process.

Original languageEnglish
Article number075601
JournalJournal of Physics D: Applied Physics
Volume49
Issue number7
DOIs
Publication statusPublished - 28 Jan 2016

Fingerprint

Single-walled carbon nanotubes (SWCN)
Electric properties
solar cells
dyes
carbon nanotubes
electrical properties
optical properties
acids
Acids
Conversion efficiency
Energy gap
Coating techniques
Dye-sensitized solar cells
Optical band gaps
Spin coating
Field emission
Sol-gel process
coating
Absorption spectra
field emission

Keywords

  • efficiency
  • InO
  • morphology
  • optical
  • single-walled carbon nanotubes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

Cite this

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title = "Optical, morphology and electrical properties of In2O3 incorporating acid-treated single-walled carbon nanotubes based DSSC",
abstract = "This study focuses on the influence of an acid treatment process of single-walled carbon nanotubes (SWCNTs) in In2O3-based dye-sensitized solar cells (DSSCs). Pure In2O3, In2O3-SWCNTs with acid treatment and In2O3-SWCNTs without acid treatment were prepared using the sol-gel method via a spin coating technique annealed at 450°C. The optical, morphology and electrical properties of the photoanodes were characterized by means of UV-Vis analysis, atomic force microscopy and field-emission scanning electron microscopy, and J-V curve measurements, respectively. The optical band gap obtained through UV-Vis analysis showed that the acid treatment process modified the band gap of the photoanode, which enhances the V oc of the DSSCs. In addition, In2O3-SWCNTs with acid treatment possess a porous structure that improves the power conversion efficiency (PCE) of the DSSCs. In addition, the diameter of acid-treated SWCNTs was reduced compared to pristine SWCNTs. In2O3-SWCNTs with acid treatment exhibited the highest PCE of 1.40{\%} with J sc of 7.6 mA cm-2, V oc of 0.51 V, and fill factor of 0.36. The increment in V oc is due to the higher band gap obtained through the UV-Vis absorption spectrum. Moreover, In2O3-SWCNTs with acid treatment has a higher electron lifetime with a higher effective diffusion coefficient that slows down the recombination rate and speeds up the electron transport process.",
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author = "S. Mahalingam and Huda Abdullah and Izamarlina Asshaari and S. Shaari and Andanastuti Muchtar",
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T1 - Optical, morphology and electrical properties of In2O3 incorporating acid-treated single-walled carbon nanotubes based DSSC

AU - Mahalingam, S.

AU - Abdullah, Huda

AU - Asshaari, Izamarlina

AU - Shaari, S.

AU - Muchtar, Andanastuti

PY - 2016/1/28

Y1 - 2016/1/28

N2 - This study focuses on the influence of an acid treatment process of single-walled carbon nanotubes (SWCNTs) in In2O3-based dye-sensitized solar cells (DSSCs). Pure In2O3, In2O3-SWCNTs with acid treatment and In2O3-SWCNTs without acid treatment were prepared using the sol-gel method via a spin coating technique annealed at 450°C. The optical, morphology and electrical properties of the photoanodes were characterized by means of UV-Vis analysis, atomic force microscopy and field-emission scanning electron microscopy, and J-V curve measurements, respectively. The optical band gap obtained through UV-Vis analysis showed that the acid treatment process modified the band gap of the photoanode, which enhances the V oc of the DSSCs. In addition, In2O3-SWCNTs with acid treatment possess a porous structure that improves the power conversion efficiency (PCE) of the DSSCs. In addition, the diameter of acid-treated SWCNTs was reduced compared to pristine SWCNTs. In2O3-SWCNTs with acid treatment exhibited the highest PCE of 1.40% with J sc of 7.6 mA cm-2, V oc of 0.51 V, and fill factor of 0.36. The increment in V oc is due to the higher band gap obtained through the UV-Vis absorption spectrum. Moreover, In2O3-SWCNTs with acid treatment has a higher electron lifetime with a higher effective diffusion coefficient that slows down the recombination rate and speeds up the electron transport process.

AB - This study focuses on the influence of an acid treatment process of single-walled carbon nanotubes (SWCNTs) in In2O3-based dye-sensitized solar cells (DSSCs). Pure In2O3, In2O3-SWCNTs with acid treatment and In2O3-SWCNTs without acid treatment were prepared using the sol-gel method via a spin coating technique annealed at 450°C. The optical, morphology and electrical properties of the photoanodes were characterized by means of UV-Vis analysis, atomic force microscopy and field-emission scanning electron microscopy, and J-V curve measurements, respectively. The optical band gap obtained through UV-Vis analysis showed that the acid treatment process modified the band gap of the photoanode, which enhances the V oc of the DSSCs. In addition, In2O3-SWCNTs with acid treatment possess a porous structure that improves the power conversion efficiency (PCE) of the DSSCs. In addition, the diameter of acid-treated SWCNTs was reduced compared to pristine SWCNTs. In2O3-SWCNTs with acid treatment exhibited the highest PCE of 1.40% with J sc of 7.6 mA cm-2, V oc of 0.51 V, and fill factor of 0.36. The increment in V oc is due to the higher band gap obtained through the UV-Vis absorption spectrum. Moreover, In2O3-SWCNTs with acid treatment has a higher electron lifetime with a higher effective diffusion coefficient that slows down the recombination rate and speeds up the electron transport process.

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