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791539

Sigma-Aldrich

Titania paste, reflector

Sinónimos:

Greatcell Solar® WER2-O, TiO2 paste

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About This Item

MDL number:
MFCD00011269
UNSPSC Code:
12352103
PubChem Substance ID:
329768277
NACRES:
NA.23

description

Crystal Structure: > 99% anatase (analysis carried out on starting material, prior to paste manufacture)

Quality Level

100

form

paste (white)

concentration

20.0 wt. % (+/- 1.2 wt%)

avg. part. size

150-250 nm (scatter)

viscosity

15000-25000 mPa.s (Analysis carried out with 20mm 4 degree cone/plate; 40 s-1)

InChI

1S/2O.Ti

InChI key

GWEVSGVZZGPLCZ-UHFFFAOYSA-N

General description

Titania paste, the reflector is a precursor for titania, that forms a mesoporous light scattering layer on the fluorine doped tin oxide (FTO) substrates. It is used in a variety of electrochemical devices to improve electron mobility and power efficiency.

Application

Light scattering titania paste can be coated on the primary transparent layer of TiO2 to form a bilayered titanium film. It can be used as a negative electrode for dye sensitized solar cells (DSSCs).
Scattering Reflector Titania Paste can be used in conjunction with Transparent Titania Paste for enhanced DSSC performance in applications where transparency is not required.
Scattering Titania Paste contains highly dispersed anatase scattering particles (150nm to 250nm). This paste produces a non-active scattering layer when applied onto a pre-printed active layer.
After drying; this paste must be fired – together with the pre-printed active layers – at or above 500°C. This results in an opaque sintered layer; with a thickness of ~3μm for one printed layer; when using a 90T mesh screen.

Storage: Store in the dark at 20°C

Legal Information

Product of Greatcell Solar® exclusive supplier of Sun2 products under license from EPFL.
Greatcell Solar® is a registered trademark of Greatcell Solar
Greatcell Solar is a registered trademark of Greatcell Solar

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H315,H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class

10 - Combustible liquids

wgk_germany

WGK 1

flash_point_f

195.8 °F

flash_point_c

91 °C

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Certificados de análisis (COA)

Lot/Batch Number
MKCS6645
MKCN0651
MKCJ2954
MKBR4021V

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CdSe-sensitized mesoscopic TiO 2 solar cells exhibiting> 5% efficiency: redundancy of CdS buffer layer
Hossain MA, et al.
Journal of Materials Chemistry, 22(32), 16235-16242 (2012)
Band engineered ternary solid solution CdS x Se 1- x-sensitized mesoscopic TiO 2 solar cells
Hossain MA, et al.
Physical Chemistry Chemical Physics, 14(19), 7154-7161 (2012)
Electrical and photophysical analyses on the impacts of arylamine electron donors in cyclopentadithiophene dye-sensitized solar cells
Xu M, et al.
Energy & Environmental Science, 4(11), 4735-4742 (2011)
Joint electrical, photophysical and computational studies on D-pi-A dye sensitized solar cells: the impacts of dithiophene rigidification
Xu M, et al.
Chemical Science, 3(4), 976-983 (2012)
Pt-free spray coated reduced graphene oxide counter electrodes for dye sensitized solar cells
Nagavolu C, et al.
Solar Energy, 137(11), 143-147 (2016)

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Understanding and Successfully Applying Materials for Dye-Sensitized Solar Cells

While dye sensitization as the basis for color photography has been accepted for a very long time,1 attempts to use this principle for the conversion of solar light to electricity generally had resulted only in very low photocurrents, below 100 nA/cm

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