Enhancing Power Conversion Efficiency of Dye-Sensitized Solar Cell Using TiO2-MWCNT Composite Photoanodes

Umer Mehmood; Ibnelwaleed A. Hussein; Amir Al-Ahmed; Shakeel Ahmed

doi:10.1109/JPHOTOV.2016.2514703

Enhancing Power Conversion Efficiency of Dye-Sensitized Solar Cell Using TiO₂-MWCNT Composite Photoanodes

Umer Mehmood
, Ibnelwaleed A. Hussein
, Amir Al-Ahmed
, Shakeel Ahmed

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

The aim of this work is to improve the power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs) using composite films consisting of titanium oxide (TiO₂) nanoparticles and multiwalled carbon nanotubes (MWCNTs). A transmission electron microscope (TEM) was used to confirm the dispersion of carbon nanotubes (CNTs) in TiO₂. Composite photoanode-based solar cells were characterized by UV-Visible absorption spectroscopy, photocurrent-voltage (I-V) characteristics, and electrochemical impedance spectroscopy. It was found that the PCE (η_c) of DSSCs strongly depends on the concentration of CNTs in the nanocomposite films. The solar cell assembled with photoanode containing 0.06% MWCNTs shows the highest efficiency of 5.25%, which is 46% greater than unmodified photoanode. The density functional theory (DFT) quantum modeling technique was used to compute the band gap of TiO₂ and CNT-TiO₂ clusters.

Original language	English
Article number	7384450
Pages (from-to)	486-490
Number of pages	5
Journal	IEEE Journal of Photovoltaics
Volume	6
Issue number	2
DOIs	https://doi.org/10.1109/JPHOTOV.2016.2514703
State	Published - Mar 2016

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Composites
Power
density functional theory (DFT)
efficiency
multiwalled carbon nanotubes
photovoltaics

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1109/JPHOTOV.2016.2514703

Cite this

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title = "Enhancing Power Conversion Efficiency of Dye-Sensitized Solar Cell Using TiO2-MWCNT Composite Photoanodes",

abstract = "The aim of this work is to improve the power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs) using composite films consisting of titanium oxide (TiO2) nanoparticles and multiwalled carbon nanotubes (MWCNTs). A transmission electron microscope (TEM) was used to confirm the dispersion of carbon nanotubes (CNTs) in TiO2. Composite photoanode-based solar cells were characterized by UV-Visible absorption spectroscopy, photocurrent-voltage (I-V) characteristics, and electrochemical impedance spectroscopy. It was found that the PCE (ηc) of DSSCs strongly depends on the concentration of CNTs in the nanocomposite films. The solar cell assembled with photoanode containing 0.06\% MWCNTs shows the highest efficiency of 5.25\%, which is 46\% greater than unmodified photoanode. The density functional theory (DFT) quantum modeling technique was used to compute the band gap of TiO2 and CNT-TiO2 clusters.",

keywords = "Composites, Power, density functional theory (DFT), efficiency, multiwalled carbon nanotubes, photovoltaics",

author = "Umer Mehmood and Hussein, \{Ibnelwaleed A.\} and Amir Al-Ahmed and Shakeel Ahmed",

note = "Publisher Copyright: {\textcopyright} 2015 IEEE.",

year = "2016",

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doi = "10.1109/JPHOTOV.2016.2514703",

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T1 - Enhancing Power Conversion Efficiency of Dye-Sensitized Solar Cell Using TiO2-MWCNT Composite Photoanodes

AU - Mehmood, Umer

AU - Hussein, Ibnelwaleed A.

AU - Al-Ahmed, Amir

AU - Ahmed, Shakeel

PY - 2016/3

Y1 - 2016/3

N2 - The aim of this work is to improve the power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs) using composite films consisting of titanium oxide (TiO2) nanoparticles and multiwalled carbon nanotubes (MWCNTs). A transmission electron microscope (TEM) was used to confirm the dispersion of carbon nanotubes (CNTs) in TiO2. Composite photoanode-based solar cells were characterized by UV-Visible absorption spectroscopy, photocurrent-voltage (I-V) characteristics, and electrochemical impedance spectroscopy. It was found that the PCE (ηc) of DSSCs strongly depends on the concentration of CNTs in the nanocomposite films. The solar cell assembled with photoanode containing 0.06% MWCNTs shows the highest efficiency of 5.25%, which is 46% greater than unmodified photoanode. The density functional theory (DFT) quantum modeling technique was used to compute the band gap of TiO2 and CNT-TiO2 clusters.

AB - The aim of this work is to improve the power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs) using composite films consisting of titanium oxide (TiO2) nanoparticles and multiwalled carbon nanotubes (MWCNTs). A transmission electron microscope (TEM) was used to confirm the dispersion of carbon nanotubes (CNTs) in TiO2. Composite photoanode-based solar cells were characterized by UV-Visible absorption spectroscopy, photocurrent-voltage (I-V) characteristics, and electrochemical impedance spectroscopy. It was found that the PCE (ηc) of DSSCs strongly depends on the concentration of CNTs in the nanocomposite films. The solar cell assembled with photoanode containing 0.06% MWCNTs shows the highest efficiency of 5.25%, which is 46% greater than unmodified photoanode. The density functional theory (DFT) quantum modeling technique was used to compute the band gap of TiO2 and CNT-TiO2 clusters.

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KW - Power

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KW - multiwalled carbon nanotubes

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