Nanocomposites of carbon allotropes with TiO2 as effective photoanodes for efficient dye-sensitized solar cells

Umer Mehmood; Anwar Ul Haq Khan; Asif Ali Qaiser; Sheraz Bashir; Muhammad Younas

doi:10.1016/j.matlet.2018.05.127

Nanocomposites of carbon allotropes with TiO₂ as effective photoanodes for efficient dye-sensitized solar cells

Umer Mehmood, Anwar Ul Haq Khan, Asif Ali Qaiser^*, Sheraz Bashir, Muhammad Younas

^*Corresponding author for this work

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19 Scopus citations

Abstract

In this work, nanocomposites of carbon allotropes with TiO₂ have been used as photoanodes to improve the photovoltaic performance of dye-sensitized solar cells (DSSCs). Multi-walled carbon nanotubes and graphene materials have been mixed with TiO₂ paste to form nanocomposites. Transmission Electron Microscopy (TEM) has been used to confirm the dispersion of MWCNTs and graphene materials in TiO₂. The electrochemical impedance spectroscopic, current-voltage characteristics and incident photon-to-current efficiency have been carried to characterize DSSCs. Results demonstrate that nanocomposite photoanodes enhance the power-conversion-efficiency of DSSCs. However, results also show that graphene/TiO₂ based DSSC exhibits PCE of 5.25%, which is about 14% higher than MWCNTs/TiO₂ based solar cell (4.20%).

Original language	English
Pages (from-to)	125-128
Number of pages	4
Journal	Materials Letters
Volume	228
DOIs	https://doi.org/10.1016/j.matlet.2018.05.127
State	Published - 1 Oct 2018

Bibliographical note

Publisher Copyright:
© 2018 Elsevier B.V.

Keywords

Carbon
DSSC

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

UN SDGs

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

Access to Document

10.1016/j.matlet.2018.05.127

Cite this

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title = "Nanocomposites of carbon allotropes with TiO2 as effective photoanodes for efficient dye-sensitized solar cells",

abstract = "In this work, nanocomposites of carbon allotropes with TiO2 have been used as photoanodes to improve the photovoltaic performance of dye-sensitized solar cells (DSSCs). Multi-walled carbon nanotubes and graphene materials have been mixed with TiO2 paste to form nanocomposites. Transmission Electron Microscopy (TEM) has been used to confirm the dispersion of MWCNTs and graphene materials in TiO2. The electrochemical impedance spectroscopic, current-voltage characteristics and incident photon-to-current efficiency have been carried to characterize DSSCs. Results demonstrate that nanocomposite photoanodes enhance the power-conversion-efficiency of DSSCs. However, results also show that graphene/TiO2 based DSSC exhibits PCE of 5.25%, which is about 14% higher than MWCNTs/TiO2 based solar cell (4.20%).",

keywords = "Carbon, DSSC",

author = "Umer Mehmood and {Ul Haq Khan}, Anwar and {Ali Qaiser}, Asif and Sheraz Bashir and Muhammad Younas",

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AU - Mehmood, Umer

AU - Ul Haq Khan, Anwar

AU - Ali Qaiser, Asif

AU - Bashir, Sheraz

AU - Younas, Muhammad

PY - 2018/10/1

Y1 - 2018/10/1

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AB - In this work, nanocomposites of carbon allotropes with TiO2 have been used as photoanodes to improve the photovoltaic performance of dye-sensitized solar cells (DSSCs). Multi-walled carbon nanotubes and graphene materials have been mixed with TiO2 paste to form nanocomposites. Transmission Electron Microscopy (TEM) has been used to confirm the dispersion of MWCNTs and graphene materials in TiO2. The electrochemical impedance spectroscopic, current-voltage characteristics and incident photon-to-current efficiency have been carried to characterize DSSCs. Results demonstrate that nanocomposite photoanodes enhance the power-conversion-efficiency of DSSCs. However, results also show that graphene/TiO2 based DSSC exhibits PCE of 5.25%, which is about 14% higher than MWCNTs/TiO2 based solar cell (4.20%).

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