Effect of TiO2 nanostructure morphology on the performance of a photoelectrochemical cell of ITO/TiO2/electrolyte/platinum

Mohd Yusri Abd Rahman, Ali Umar Akrajas, L. Roza, Muhamad Mat Salleh

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The morphology of photovoltaic material is able to influence of the performance of photoelectrochemical cell. Polyvinylpyrrolidone (PVP), cetyltrimethylammonium bromide (CTAB), and hexamethylenetetramine (HMT) surfactant were used to modify the morphology nanostructure of TiO2 films by a simple technique, namely, liquid phase deposition during their growth process. It was found that the untreated surfactant TiO2 film produces the morphology with the mixture nanosphere and nanoflower. The film treated with PVP, CTAB, and HMT produce the nanostructure shape of nanoflower, nanowire, and nanorod, respectively. These TiO2 samples were utilized as photovoltaic materials in a photoelectrochemical cell of ITO/TiO 2/electrolyte/platinum. It was found that the photovoltaic parameters such as short-circuit current density (Jsc), open-circuit voltage (Voc) and fill factor are influenced by the morphology in terms of shape and particle size of the TiO2 nanostructure. The cell utilizing the TiO2 nanowire treated with PVP possesses the highest Jsc and Voc of 0.100 mAcm -2 and 0.44 V. The length of the TiO2 nanowire is 6±2 nm, while the cell with the untreated surfactant TiO2 sample demonstrates the lowest performance. It was also found that the Jsc and Voc increase with the decrease in the length of the TiO2 nanostructures. The smallest length of TiO2 possesses the best interfacial contact at TiO2/electrolyte containing iodide/triiodide redox couple. Thus, the redox reaction is optimized at this interface.

Original languageEnglish
Pages (from-to)3947-3952
Number of pages6
JournalJournal of Solid State Electrochemistry
Volume16
Issue number12
DOIs
Publication statusPublished - Dec 2012

Fingerprint

Photoelectrochemical cells
Platinum
ITO (semiconductors)
Povidone
Electrolytes
Nanostructures
platinum
Nanoflowers
Surface-Active Agents
electrolytes
Methenamine
Nanowires
hexamethylenetetramine
Surface active agents
nanowires
surfactants
cells
bromides
Nanospheres
Redox reactions

Keywords

  • Grain size
  • Photoelectrochemical cell
  • Surface morphology
  • Surfactant
  • TiO

ASJC Scopus subject areas

  • Electrochemistry
  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Materials Science(all)

Cite this

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title = "Effect of TiO2 nanostructure morphology on the performance of a photoelectrochemical cell of ITO/TiO2/electrolyte/platinum",
abstract = "The morphology of photovoltaic material is able to influence of the performance of photoelectrochemical cell. Polyvinylpyrrolidone (PVP), cetyltrimethylammonium bromide (CTAB), and hexamethylenetetramine (HMT) surfactant were used to modify the morphology nanostructure of TiO2 films by a simple technique, namely, liquid phase deposition during their growth process. It was found that the untreated surfactant TiO2 film produces the morphology with the mixture nanosphere and nanoflower. The film treated with PVP, CTAB, and HMT produce the nanostructure shape of nanoflower, nanowire, and nanorod, respectively. These TiO2 samples were utilized as photovoltaic materials in a photoelectrochemical cell of ITO/TiO 2/electrolyte/platinum. It was found that the photovoltaic parameters such as short-circuit current density (Jsc), open-circuit voltage (Voc) and fill factor are influenced by the morphology in terms of shape and particle size of the TiO2 nanostructure. The cell utilizing the TiO2 nanowire treated with PVP possesses the highest Jsc and Voc of 0.100 mAcm -2 and 0.44 V. The length of the TiO2 nanowire is 6±2 nm, while the cell with the untreated surfactant TiO2 sample demonstrates the lowest performance. It was also found that the Jsc and Voc increase with the decrease in the length of the TiO2 nanostructures. The smallest length of TiO2 possesses the best interfacial contact at TiO2/electrolyte containing iodide/triiodide redox couple. Thus, the redox reaction is optimized at this interface.",
keywords = "Grain size, Photoelectrochemical cell, Surface morphology, Surfactant, TiO",
author = "{Abd Rahman}, {Mohd Yusri} and Akrajas, {Ali Umar} and L. Roza and {Mat Salleh}, Muhamad",
year = "2012",
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T1 - Effect of TiO2 nanostructure morphology on the performance of a photoelectrochemical cell of ITO/TiO2/electrolyte/platinum

AU - Abd Rahman, Mohd Yusri

AU - Akrajas, Ali Umar

AU - Roza, L.

AU - Mat Salleh, Muhamad

PY - 2012/12

Y1 - 2012/12

N2 - The morphology of photovoltaic material is able to influence of the performance of photoelectrochemical cell. Polyvinylpyrrolidone (PVP), cetyltrimethylammonium bromide (CTAB), and hexamethylenetetramine (HMT) surfactant were used to modify the morphology nanostructure of TiO2 films by a simple technique, namely, liquid phase deposition during their growth process. It was found that the untreated surfactant TiO2 film produces the morphology with the mixture nanosphere and nanoflower. The film treated with PVP, CTAB, and HMT produce the nanostructure shape of nanoflower, nanowire, and nanorod, respectively. These TiO2 samples were utilized as photovoltaic materials in a photoelectrochemical cell of ITO/TiO 2/electrolyte/platinum. It was found that the photovoltaic parameters such as short-circuit current density (Jsc), open-circuit voltage (Voc) and fill factor are influenced by the morphology in terms of shape and particle size of the TiO2 nanostructure. The cell utilizing the TiO2 nanowire treated with PVP possesses the highest Jsc and Voc of 0.100 mAcm -2 and 0.44 V. The length of the TiO2 nanowire is 6±2 nm, while the cell with the untreated surfactant TiO2 sample demonstrates the lowest performance. It was also found that the Jsc and Voc increase with the decrease in the length of the TiO2 nanostructures. The smallest length of TiO2 possesses the best interfacial contact at TiO2/electrolyte containing iodide/triiodide redox couple. Thus, the redox reaction is optimized at this interface.

AB - The morphology of photovoltaic material is able to influence of the performance of photoelectrochemical cell. Polyvinylpyrrolidone (PVP), cetyltrimethylammonium bromide (CTAB), and hexamethylenetetramine (HMT) surfactant were used to modify the morphology nanostructure of TiO2 films by a simple technique, namely, liquid phase deposition during their growth process. It was found that the untreated surfactant TiO2 film produces the morphology with the mixture nanosphere and nanoflower. The film treated with PVP, CTAB, and HMT produce the nanostructure shape of nanoflower, nanowire, and nanorod, respectively. These TiO2 samples were utilized as photovoltaic materials in a photoelectrochemical cell of ITO/TiO 2/electrolyte/platinum. It was found that the photovoltaic parameters such as short-circuit current density (Jsc), open-circuit voltage (Voc) and fill factor are influenced by the morphology in terms of shape and particle size of the TiO2 nanostructure. The cell utilizing the TiO2 nanowire treated with PVP possesses the highest Jsc and Voc of 0.100 mAcm -2 and 0.44 V. The length of the TiO2 nanowire is 6±2 nm, while the cell with the untreated surfactant TiO2 sample demonstrates the lowest performance. It was also found that the Jsc and Voc increase with the decrease in the length of the TiO2 nanostructures. The smallest length of TiO2 possesses the best interfacial contact at TiO2/electrolyte containing iodide/triiodide redox couple. Thus, the redox reaction is optimized at this interface.

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KW - Surfactant

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SN - 1432-8488

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