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

^*Autor correspondiente de este trabajo

Central Metallurgical Research & Development Institute
Catalan Institute of Nanoscience and Nanotechnology
Ain Shams University

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

28 Citas (Scopus)

Resumen

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.

Idioma original	Inglés
Páginas (desde-hasta)	167-174
Número de páginas	8
Publicación	Applied Nanoscience (Switzerland)
Volumen	3
N.º	2
DOI	https://doi.org/10.1007/s13204-012-0117-5
Estado	Publicada - 1 abr 2013
Publicado de forma externa	Sí

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Este resultado contribuye a los siguientes Objetivos de Desarrollo Sostenible

ODS 7: Energía asequible y no contaminante

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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.",

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AU - Shalan, A. E.

AU - Lira-Cantú, Mónica

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

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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

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KW - Photovoltaic performance

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