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conferenceseries
.com
Volume 08
Innovative Energy & Research
ISSN: 2576-1463
Advanced Energy Materials 2019
July 11-12, 2019
July 11-12, 2019 | Zurich, Switzerland
21
st
International Conference on
Advanced Energy Materials and Research
Performance of dye sensitized solar cells (DSSCs) based on Cu-doped TiO
2
nanostructures photoanodes
Sara Chahid, Desireé M de los Santos
and
Rodrigo Alcántara
Universidad de Cádiz, Spain
I
n this research study, Cu-doped TiO
2
nanostructures with different doping contents from 0 to 10.0% (mole
fraction) were synthesized through hydrolysis at low temperature. The prepared Cu doped TiO
2
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-Visible Spectroscopy Analysis was found that incorporation of Cu
2+
into titanium affects the band gap
of TiO
2
and extending his activity towards visible sunlight region. Scanning Electron Microscopic (SEM) analysis
confirming the Cu content is incorporated into TiO
2
lattice affecting efficiency of doped samples. Further, the active
specific surface area of the system was investigated employing Brunauer-Emmett-Teller (BET) measurement. Then
the dye-sensitized solar cells (DSSCs) based on Cu-doped TiO
2
photoanodes were fabricated and investigated with
chemically absorbed Ruthenium N3 dye electrode under light illumination with standard solar simulator (AM 1.5G,
100 mW/cm
2
). Results demonstrated that the 1.0%Cu-doped TiO
2
sample annealed at 773 K for 60 minutes exhibited
the best photovoltaic performance of open circuit voltage (Voc = 957.5 mV), short circuit current density (Jsc = 0.795
mAcm
-2
), and the cell efficiency was 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 TiO
2
nanoparticle presented
the higher active specific surface area of 143.2 m
2
g
-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 TiO
2
in photovoltaic fields.
sara10chahid@gmail.comInnov Ener Res 2019, Volume 08