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Author Shogh, Shiva ♦ Mohammadpour, Raheleh ♦ Iraji zad, Azam ♦ Taghavinia, Nima
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ SOLAR ENERGY ♦ ABSORPTION SPECTRA ♦ COMPARATIVE EVALUATIONS ♦ DOPED MATERIALS ♦ LIGHT SCATTERING ♦ NANOSTRUCTURES ♦ NITROGEN ♦ PARTICLES ♦ PHOTOANODES ♦ POROUS MATERIALS ♦ SOLAR CELLS ♦ SURFACES ♦ SYNTHESIS ♦ TITANIUM OXIDES ♦ X-RAY PHOTOELECTRON SPECTROSCOPY
Abstract Highlights: • N-doped TiO{sub 2} scattering particles were synthesized for embedding into commercial photoanode of dye sensitized solar cells. • Embedded scatterers improved optical and electrical features of the cells. • These multifunctional scatterers increased cell performance up to 17%. - Abstract: Aggregated sub-micron size nitrogen doped TiO{sub 2} (N-TiO{sub 2}) particles with superior optical and electrical features were successfully synthesized for embedding into commercial mesoporous TiO{sub 2} photoelectrode of dye sensitized solar cells (DSSCs) as the light scattering particles compared to undoped one. X-ray photoelectron spectroscopy and absorption spectra confirmed that the titanium dioxide is sufficiently doped by nitrogen in N-TiO{sub 2} sample. Employing these high-surface N-TiO{sub 2} in mesoporous photoelectrode of solar cells, the power conversion efficiency of 8% has been achieved which shows 17% improvement for the optimum embedded level of doping (30 wt%) compared to commercial photoelectrode without additive; while enhanced efficiency is only 3% embedding undoped sub-micron size TiO{sub 2} particles. These results can introduce the novel multifunctional photoelectrode for nanostructured solar cells with enhanced values of scattering efficiency and improved electrical features including trap states density reduction in comparison to commercial mesoporous photoelectrodes.
ISSN 00255408
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-12-15
Publisher Place United States
Journal Materials Research Bulletin
Volume Number 72


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