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Molecular design of metal-free D-π-A substituted sensitizers for dye-sensitized solar cells
Novel donor-π-acceptor (D-π-A) dyes, coded as SD-1 , SD-2 and SD-5 , were designed and synthesized for dye-sensitized solar cells. All these dyes comprised the same donor and acceptor units while the oligo thiophene units were introduced as linkers between the donor and acceptor units. The photophys...
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Published in: | Energy & environmental science 2010-01, Vol.3 (11), p.1757-1764 |
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Main Authors: | , , , , , , , , , , , |
Format: | Article |
Language: | English |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Novel donor-π-acceptor (D-π-A) dyes, coded as
SD-1
,
SD-2
and
SD-5
, were designed and synthesized for dye-sensitized solar cells. All these dyes comprised the same donor and acceptor units while the oligo thiophene units were introduced as linkers between the donor and acceptor units. The photophysical and electrochemical properties of the dyes were investigated by UV/vis spectrometry and cyclic voltammetry. The dyes were subsequently tested as sensitizers in dye-sensitized solar cells. Photovoltaic performance of the device with
SD-2
dye showed maximum monochromatic incident photon-to-current efficiency (IPCE) of 82% and an over all conversion efficiency of 6.2% under full sunlight (AM 1.5G, 100 mW cm
−2
) irradiation.
Novel donor-π-acceptor dyes, coded as
SD-1
,
SD-2
and
SD-5
, were designed and synthesized for dye-sensitized solar cells. Photovoltaic performance of the device with
SD-2
dye showed an overall conversion efficiency of 6.2% under full sunlight irradiation. |
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ISSN: | 1754-5692 1754-5706 |
DOI: | 10.1039/c0ee00218f |