Enhancement of TiO2 nanoparticle properties and efficiency of dye-sensitized solar cells using modifiers

M. M. Rashad; A. E. Shalan; Mónica Lira-Cantú; M. S.A. Abdel-Mottaleb

doi:10.1007/s13204-012-0117-5

Enhancement of TiO₂ nanoparticle properties and efficiency of dye-sensitized solar cells using modifiers

M. M. Rashad
, A. E. Shalan^*
, Mónica Lira-Cantú
, M. S.A. Abdel-Mottaleb

^*Corresponding author for this work

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

28 Citations (Scopus)

Abstract

A low-temperature hydrothermal process developed to synthesizes titania nanoparticles with controlled size. We investigate the effects of modifier substances, urea, on surface chemistry of titania (TiO₂) nanopowder and its applications in dye-sensitized solar cells (DSSCs). Treating the nanoparticles with a modifier solution changes its morphology, which allows the TiO₂ nanoparticles to exhibit properties that differ from untreated TiO₂ nanoparticles. The obtained TiO₂ nanoparticle electrodes characterized by XRD, SEM, TEM/HRTEM, UV–VIS Spectroscopy and FTIR. Experimental results indicate that the effect of bulk traps and the surface states within the TiO₂ nanoparticle films using modifiers enhances the efficiency in DSSCs. Under 100-mW cm⁻² simulated sunlight, the titania nanoparticles DSSC showed solar energy conversion efficiency = 4.6 %, with V_oc = 0.74 V, J_sc = 9.7324 mA cm⁻², and fill factor = 71.35.

Original language	English
Pages (from-to)	167-174
Number of pages	8
Journal	Applied Nanoscience (Switzerland)
Volume	3
Issue number	2
DOIs	https://doi.org/10.1007/s13204-012-0117-5
Publication status	Published - 1 Apr 2013
Externally published	Yes

Keywords

Dye-sensitized solar cells
Electron transport
Modifiers
Photovoltaic performance
Titania nanoparticles

UN SDGs

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

Access to Document

10.1007/s13204-012-0117-5

Cite this

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title = "Enhancement of TiO2 nanoparticle properties and efficiency of dye-sensitized solar cells using modifiers",

abstract = "A low-temperature hydrothermal process developed to synthesizes titania nanoparticles with controlled size. We investigate the effects of modifier substances, urea, on surface chemistry of titania (TiO2) nanopowder and its applications in dye-sensitized solar cells (DSSCs). Treating the nanoparticles with a modifier solution changes its morphology, which allows the TiO2 nanoparticles to exhibit properties that differ from untreated TiO2 nanoparticles. The obtained TiO2 nanoparticle electrodes characterized by XRD, SEM, TEM/HRTEM, UV–VIS Spectroscopy and FTIR. Experimental results indicate that the effect of bulk traps and the surface states within the TiO2 nanoparticle films using modifiers enhances the efficiency in DSSCs. Under 100-mW cm−2 simulated sunlight, the titania nanoparticles DSSC showed solar energy conversion efficiency = 4.6 \%, with Voc = 0.74 V, Jsc = 9.7324 mA cm−2, and fill factor = 71.35.",

keywords = "Dye-sensitized solar cells, Electron transport, Modifiers, Photovoltaic performance, Titania nanoparticles",

author = "Rashad, \{M. M.\} and Shalan, \{A. E.\} and M{\'o}nica Lira-Cant{\'u} and Abdel-Mottaleb, \{M. S.A.\}",

note = "Publisher Copyright: {\textcopyright} 2012, The Author(s).",

year = "2013",

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doi = "10.1007/s13204-012-0117-5",

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T1 - Enhancement of TiO2 nanoparticle properties and efficiency of dye-sensitized solar cells using modifiers

AU - Rashad, M. M.

AU - Shalan, A. E.

AU - Lira-Cantú, Mónica

AU - Abdel-Mottaleb, M. S.A.

PY - 2013/4/1

Y1 - 2013/4/1

N2 - A low-temperature hydrothermal process developed to synthesizes titania nanoparticles with controlled size. We investigate the effects of modifier substances, urea, on surface chemistry of titania (TiO2) nanopowder and its applications in dye-sensitized solar cells (DSSCs). Treating the nanoparticles with a modifier solution changes its morphology, which allows the TiO2 nanoparticles to exhibit properties that differ from untreated TiO2 nanoparticles. The obtained TiO2 nanoparticle electrodes characterized by XRD, SEM, TEM/HRTEM, UV–VIS Spectroscopy and FTIR. Experimental results indicate that the effect of bulk traps and the surface states within the TiO2 nanoparticle films using modifiers enhances the efficiency in DSSCs. Under 100-mW cm−2 simulated sunlight, the titania nanoparticles DSSC showed solar energy conversion efficiency = 4.6 %, with Voc = 0.74 V, Jsc = 9.7324 mA cm−2, and fill factor = 71.35.

AB - A low-temperature hydrothermal process developed to synthesizes titania nanoparticles with controlled size. We investigate the effects of modifier substances, urea, on surface chemistry of titania (TiO2) nanopowder and its applications in dye-sensitized solar cells (DSSCs). Treating the nanoparticles with a modifier solution changes its morphology, which allows the TiO2 nanoparticles to exhibit properties that differ from untreated TiO2 nanoparticles. The obtained TiO2 nanoparticle electrodes characterized by XRD, SEM, TEM/HRTEM, UV–VIS Spectroscopy and FTIR. Experimental results indicate that the effect of bulk traps and the surface states within the TiO2 nanoparticle films using modifiers enhances the efficiency in DSSCs. Under 100-mW cm−2 simulated sunlight, the titania nanoparticles DSSC showed solar energy conversion efficiency = 4.6 %, with Voc = 0.74 V, Jsc = 9.7324 mA cm−2, and fill factor = 71.35.

KW - Dye-sensitized solar cells

KW - Electron transport

KW - Modifiers

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