In:
Processing and Application of Ceramics, National Library of Serbia, Vol. 12, No. 4 ( 2018), p. 374-382
Kurzfassung:
Mesoporous TiO2 films with spherical architectures and promising performance
in dye-sensitized solar cells (DSSCs) were prepared. The morphology of the
films was investigated by scanning electron microscopy. Transmission
electron microscopy analysis of the spheres disclosed the elongated shape of
sub-20 nm primary particles, while BET analysis revealed their high surface
area of 135m2/g. Anatase presence was observed in the films based on X-ray
diffractometry, selected-area electron diffraction analysis and Raman
spectroscopy analyses. Increased light scattering of the spheres in visible
region was observed by UV-VIS-NIR spectroscopy. Photovoltaic performance of
the operating N719-sensitized cells was tested using electrochemical
impedance spectroscopy and current density-voltage (J-V) curves under
simulated AM1.5 spectrum. The 0.25 cm2 cells exhibited photo-to-electric
power efficiency of 4.9%, which is among noteworthy values for DSSCs with
similar photoanodic structures.
Materialart:
Online-Ressource
ISSN:
1820-6131
,
2406-1034
Sprache:
Englisch
Verlag:
National Library of Serbia
Publikationsdatum:
2018
ZDB Id:
2972582-3