electrolyte. Despite numerous attempts at the derivation of N3
(or N719) dyes, the improvement of solar-cell performance based
on the black-dye framework, especially on its ancillary chelate
ligands, making neutral panchromatic coordination, to increase
absorptivity and stability, is scant. The exploration reported here
paves another avenue to greatly expand the development of solar
energy harvesting.
Notes and references
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PRT4 represents the best sensitizer among this series of dyes,
which gives Jsc = 21.6 mA cmꢁ2, Voc = 714 mV, and
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Fig. 3 Evolution of photovoltaic parameters of PRT4 measured
under the irradiance of AM 1.5 G sunlight during soaking at 60 1C.
A 405 nm cut-off long pass filter was put on the cell surface during
illumination. Electrolyte: DMII/EMII/EMITCB/I2/NBB/GNCS
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¨
ꢀc
This journal is The Royal Society of Chemistry 2009
5846 | Chem. Commun., 2009, 5844–5846