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Accession Number ADA595997
Title Investigation into Photoconductivity in Single CNF/TiO2-Dye Core-Shell Nanowire Devices.
Publication Date 2010
Media Count 10p
Personal Author C. Rochford F. J. Baca J. Li J. Liu Z. Li
Abstract A vertically aligned carbon nanofiber array coated with anatase TiO2 (CNF/TiO2) is an attractive possible replacement for the sintered TiO2 nanoparticle network in the original dye-sensitized solar cell (DSSC) design due to the potential for improved charge transport and reduced charge recombination. Although the reported efficiency of 1.1% in these modified DSSC s is encouraging, the limiting factors must be identified before a higher efficiency can be obtained. This work employs a single nanowire approach to investigate the charge transport in individual CNF/TiO2 core shell nanowires with adsorbed N719 dye molecules in dark and under illumination. The results shed light on the role of charge traps and dye adsorption on the (photo) conductivity of nanocrystalline TiO2 CNF s as related to dye-sensitized solar cell performance.
Keywords Arrays
Carbon fibers
Coatings
Core shell
Dyes
Efficiency
Molecules
Nanocrystals
Nanoparticles
Nanowires
Photoconductivity
Reprints
Sintering
Solar cells
Titanium dioxide
Vertical orientation


 
Source Agency Non Paid ADAS
NTIS Subject Category 49 - Electrotechnology
49E - Optoelectronic Devices & Systems
Corporate Author Kansas Univ., Lawrence. Dept. of Physics and Astronomy.
Document Type Journal article
Title Note Journal article.
NTIS Issue Number 1416
Contract Number W911NF-09-1-0295

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