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Nanomat 2019 Nano Research & Applications
ISSN: 2471-9838 Page 24
January 28-29, 2019
Barcelona, Spain
18th Edition of International Conference on
Emerging Trends in
Materials Science and
Nanotechnology
Inthisresearchstudy,Cu-dopedTiO2nanostructureswithdifferent
doping contents from0 to 10.0% (mole fraction) were synthesized
through hydrolysis at low temperature. The as-prepared Cu-doped
TiO2 nanostructures was characterized with several techniques,
X-ray diffraction (XRD) and Raman spectroscopy were used to
study the morphology and structure of the nanoparticles, which
confirmed the crystalline anatase tetragonal structure. The UV-Vis
Spectroscopy analysis was found that incorporation of Cu2+ into
titanium affects the band gap of TiO2 and extending his activity
towards visible sunlight region. Scanning Electron Microscopic
(SEM) analysis confirming the Cu content is incorporated into
TiO2 lattice affecting efficiency of doped samples. Further, the
active specific surface area of the system was investigated
employing Brunauer-Emmet-Teller (BET) measurement. Then
the Dye-sensitized solar cells (DSSCs) based on Cu-doped TiO2
photoanaodes were fabricated and investigated with chemically
absorbed Ruthenium N3 dye electrode under light illumination
with standard solar simulator (AM 1.5G, 100mW/cm2). Results
demonstrated that the 1.0% Cu-doped TiO2 sample annealed at
773K for 60 minutes exhibited the best photovoltaic performance
of open circuit voltage (Voc = 957.5 mV), short circuit current
density (Jsc = 0.795mAcm-2), and the cell efficiencywas reached
(η = 4.524 %), which consists 50% higher than the un-doped cell.
The BET analysis was supported the founding results, indicating
that the 1.0% Cu-doped TiO2 nanoparticle presented the higher
active specific surface area of 143.2 m2g-1. A highest active
surface area is a key parameter for solar cells effectiveness,
allowing more organic dye and electrolyte to be absorbed and
stored into the semiconductor, that give photon from solar light
energy more probability to be adsorbed which obviously led
to improve global cell efficiency. This study may open up more
investigated works applying Cu doped TiO2 in photovoltaic fields.
Recent Publications
1. DesireéM. de losSantos, SaraChahid, RodrigoAlcántara,
Javier Navas, Teresa Aguilar, Juan Jesús Gallardo,
Roberto Gómez-Villarejo, Iván Carrillo-Berdugo and
Concha Fernández-Lorenzo Mo/Cu/TiO2 nanoparticles:
synthesis, characterization and effect on photocatalytic
decomposition of methylene blue in water under visible
light, DOI: 10.2166/wst.2018.101 (Publicado).
2. DesireéM. de losSantos, SaraChahid, RodrigoAlcántara,
Javier Navas, Teresa Aguilar, Juan Jesús Gallardo,
Antonio Sánchez-Coronilla, and Concha Fernández-
Lorenzo. Mo/TiO2 mixture: A modification strategy of
TiO2 nanoparticles to improve photocatalytic activity
under visible light. Beilstein journal of nanotechnology,
2017 (En revisión).
3. Sara Chahid, Desireé M. de los Santos, Rodrigo
Alcántara: The effect of Cu-doped TiO2 photoanode on
photovoltaic performance of dye-sensitized solar cells.
(Accepted in ACM digital library (ISBN: 978-1-4503-
6562-8).
4. SaraChahid, DesireéM. de losSantos, RodrigoAlcántara,
Javier Navas: Isotherm, Kinetic, and thermodynamic
analysis for removal of organic pollutants Using
Synthesized Mo/Cu/ co-doped TiO2 Nanostructured
(sent).
Biography
Sara Chahid has her expertise in synthesis and characterization of semi-
conductors, with photovoltaic and photocatalytic applications. Her open
and contextual evaluation of new semiconductors based on TiO2 (Cu/ TiO2,
MoS2/TiO2 and Cu-MoS2/TiO2) creates new pathways for improving re-
newable energy.
Performance of Dye Sensitized Solar
Cells (DSSCs) based on Cu-doped TiO2
nanostructures photoanodes.
Sara Chahid, Desireé M. de los Santos, and Rodrigo Alcántara
Universidad de Cádiz, Spain
Sara Chahid et al., Nano Res Appl 2019, Volume 5
DOI: 10.21767/2471-9838-C1-030