Attempt to improve the performance of pyrrole-containing dyes in dye sensitized solar cells by adjusting isolation groups
Four new pyrrole-based organic sensitizers with different isolation groups were conveniently
synthesized and applied to dye sensitized solar cells (DSCs). The introduction of isolation
group in the side chain could both suppress the formation of dye aggregates and electron
recombination. Especially, when two pieces of D-π-A chromophore moieties shared one
isolation group to construct the “H” type dye, the performance was further improved.
Consequently, in the corresponding solar cell of LI-57, a short-circuit photocurrent density (J …
synthesized and applied to dye sensitized solar cells (DSCs). The introduction of isolation
group in the side chain could both suppress the formation of dye aggregates and electron
recombination. Especially, when two pieces of D-π-A chromophore moieties shared one
isolation group to construct the “H” type dye, the performance was further improved.
Consequently, in the corresponding solar cell of LI-57, a short-circuit photocurrent density (J …
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