Microwave Assisted Preparation of Barium Doped Titania (Ba/TiO2) as Photoanode in Dye Sensitized Solar Cells

Awais Ahmad; Safia Khan; Mariam Khan; Rafael Luque; Mohammed Jalalah; Mabkhoot A. Alsaiari

doi:10.3390/app12189280

Microwave Assisted Preparation of Barium Doped Titania (Ba/TiO₂) as Photoanode in Dye Sensitized Solar Cells

Awais Ahmad
, Safia Khan
, Mariam Khan
, Rafael Luque^*
, Mohammed Jalalah
, Mabkhoot A. Alsaiari^*

^*Corresponding author for this work

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

12 Scopus citations

Abstract

Pure TiO₂ and barium (0.5 wt%) doped TiO₂ (Ba/TiO₂) nanostructures have been synthesized via facile microwave irradiation method. The pure anatase phase of synthesized photoactive material was confirmed by X-ray diffraction. Ba doping in the TiO₂ host structure influenced the optical band gap as confirmed by UV-visible spectroscopy. The optical band gap increased from 3.21 eV for the TiO₂ to 3.26 eV for Ba/TiO₂. Morphological analysis of synthesized TiO₂ and Ba/TiO₂ was conducted using scanning electron microscopy. Energy dispersive X-ray spectroscopy confirmed the formation of Ba/TiO₂ and no impurities were observed. Electrochemical impedance spectroscopy showed that the charge transfer resistance increased for Ba/TiO_2, which reduced dark current creation in a dye-sensitized solar cell. The highest power conversion efficiency (3.24%) was achieved for Ba/TiO₂ photoanode compared to 2.1% for a pure TiO₂ photoanode-based device.

Original language	English
Article number	9280
Journal	Applied Sciences (Switzerland)
Volume	12
Issue number	18
DOIs	https://doi.org/10.3390/app12189280
State	Published - Sep 2022
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2022 by the authors.

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

dye-sensitized solar cell
microwave synthesis
nanoparticles
photoanode

ASJC Scopus subject areas

General Materials Science
Instrumentation
General Engineering
Process Chemistry and Technology
Computer Science Applications
Fluid Flow and Transfer Processes

Access to Document

10.3390/app12189280

Cite this

@article{a5845c5273fd487e884416691d15d994,

title = "Microwave Assisted Preparation of Barium Doped Titania (Ba/TiO2) as Photoanode in Dye Sensitized Solar Cells",

abstract = "Pure TiO2 and barium (0.5 wt\%) doped TiO2 (Ba/TiO2) nanostructures have been synthesized via facile microwave irradiation method. The pure anatase phase of synthesized photoactive material was confirmed by X-ray diffraction. Ba doping in the TiO2 host structure influenced the optical band gap as confirmed by UV-visible spectroscopy. The optical band gap increased from 3.21 eV for the TiO2 to 3.26 eV for Ba/TiO2. Morphological analysis of synthesized TiO2 and Ba/TiO2 was conducted using scanning electron microscopy. Energy dispersive X-ray spectroscopy confirmed the formation of Ba/TiO2 and no impurities were observed. Electrochemical impedance spectroscopy showed that the charge transfer resistance increased for Ba/TiO2, which reduced dark current creation in a dye-sensitized solar cell. The highest power conversion efficiency (3.24\%) was achieved for Ba/TiO2 photoanode compared to 2.1\% for a pure TiO2 photoanode-based device.",

keywords = "dye-sensitized solar cell, microwave synthesis, nanoparticles, photoanode",

author = "Awais Ahmad and Safia Khan and Mariam Khan and Rafael Luque and Mohammed Jalalah and Alsaiari, \{Mabkhoot A.\}",

note = "Publisher Copyright: {\textcopyright} 2022 by the authors.",

year = "2022",

month = sep,

doi = "10.3390/app12189280",

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volume = "12",

journal = "Applied Sciences (Switzerland)",

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T1 - Microwave Assisted Preparation of Barium Doped Titania (Ba/TiO2) as Photoanode in Dye Sensitized Solar Cells

AU - Ahmad, Awais

AU - Khan, Safia

AU - Khan, Mariam

AU - Luque, Rafael

AU - Jalalah, Mohammed

AU - Alsaiari, Mabkhoot A.

PY - 2022/9

Y1 - 2022/9

N2 - Pure TiO2 and barium (0.5 wt%) doped TiO2 (Ba/TiO2) nanostructures have been synthesized via facile microwave irradiation method. The pure anatase phase of synthesized photoactive material was confirmed by X-ray diffraction. Ba doping in the TiO2 host structure influenced the optical band gap as confirmed by UV-visible spectroscopy. The optical band gap increased from 3.21 eV for the TiO2 to 3.26 eV for Ba/TiO2. Morphological analysis of synthesized TiO2 and Ba/TiO2 was conducted using scanning electron microscopy. Energy dispersive X-ray spectroscopy confirmed the formation of Ba/TiO2 and no impurities were observed. Electrochemical impedance spectroscopy showed that the charge transfer resistance increased for Ba/TiO2, which reduced dark current creation in a dye-sensitized solar cell. The highest power conversion efficiency (3.24%) was achieved for Ba/TiO2 photoanode compared to 2.1% for a pure TiO2 photoanode-based device.

AB - Pure TiO2 and barium (0.5 wt%) doped TiO2 (Ba/TiO2) nanostructures have been synthesized via facile microwave irradiation method. The pure anatase phase of synthesized photoactive material was confirmed by X-ray diffraction. Ba doping in the TiO2 host structure influenced the optical band gap as confirmed by UV-visible spectroscopy. The optical band gap increased from 3.21 eV for the TiO2 to 3.26 eV for Ba/TiO2. Morphological analysis of synthesized TiO2 and Ba/TiO2 was conducted using scanning electron microscopy. Energy dispersive X-ray spectroscopy confirmed the formation of Ba/TiO2 and no impurities were observed. Electrochemical impedance spectroscopy showed that the charge transfer resistance increased for Ba/TiO2, which reduced dark current creation in a dye-sensitized solar cell. The highest power conversion efficiency (3.24%) was achieved for Ba/TiO2 photoanode compared to 2.1% for a pure TiO2 photoanode-based device.

KW - dye-sensitized solar cell

KW - microwave synthesis

KW - nanoparticles

KW - photoanode

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DO - 10.3390/app12189280

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