Pyreno-chalcone dendrimers as an additive in the redox couple of dye-sensitized solar cells

• Published in: Journal of materials science Vol. 47; no. 4; pp. 1811 - 1818
• Main Authors: Rajakumar, Perumal, Visalakshi, Kathiresan, Ganesan, Shanmugam, Maruthamuthu, Pichai, Suthanthiraraj, Samuel Austin
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01-02-2012; Springer; Springer Nature B.V
• Subjects: Additives; Characterization and Evaluation of Materials; Chemistry and Materials Science; Classical Mechanics; Crystallography and Scattering Methods; Dendrimers; Density; Dye-sensitized solar cells; Dyes; Joining; Materials Science; Open circuit voltage; Photoelectric effect; Photoelectric emission; Photovoltaic cells; Polymer Sciences; Short circuits; Solar batteries; Solar cells; Solar energy; Solar energy industry; Solid Mechanics; Titanium dioxide; Elemental Anal; Redox Couple; Isophthalate; Acryloyl; Short Circuit Current Density
• ISSN: 0022-2461; 1573-4803
• DOI: 10.1007/s10853-011-5967-9

Novel pyreno-chalcone dendrimers
1
,
2
, and
3
were synthesized and their ability to act as an additive in the redox couple (I
−
/I
3
−
) of dye-sensitized nanocrystalline TiO
2
solar cell has been tested. The redox couple doped with pyreno-chalcone dendrimer
3
gave a short circuit photocurrent density (
J
sc
) of 7.40 mA/cm
2
, open circuit voltage (
V
oc
) of 820 mV, and a fill factor of 0.51, corresponding to an overall conversion efficiency (η) of 7.89% under 40 mW/cm
2
irradiation.