Non-innocent ligand flavone and curcumin inspired ruthenium photosensitizers for solar energy conversion

A series of ruthenium photosensitizers incorporating a β-diketonate non-innocent ligand were synthesized, characterized, and implemented in dye-sensitized solar cells. Electrochemical studies exhibited well behaved reversible oxidations and reductions for all β-diketonate complexes. The acac − and P...

Full description

Saved in:
Bibliographic Details
Published in:Physical chemistry chemical physics : PCCP 2021-08, Vol.23 (31), p.16516-16524
Main Authors: Lee, Nicholas A, Ngo, Ken T, Gilligan, Gerald E, Lamberto, Massimilliano, Rochford, Jonathan
Format: Article
Language:English
Subjects:
Absorptivity
Dye-sensitized solar cells
Dyes
Energy conversion efficiency
Ligands
Photoelectric effect
Photoelectric emission
Photovoltaic cells
Ruthenium
Solar energy conversion
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A series of ruthenium photosensitizers incorporating a β-diketonate non-innocent ligand were synthesized, characterized, and implemented in dye-sensitized solar cells. Electrochemical studies exhibited well behaved reversible oxidations and reductions for all β-diketonate complexes. The acac − and Ph 2 acac − based photosensitizers possess limited delocalization across the ligand π*-manifold, which is significant for exhibition of respectable power conversion efficiencies in a dye-sensitized solar cell (DSC) device. As the π-orbital network was extended on the flavone and curcumin inspired NILs, increased molar absorptivity was observed, however this ultimately proved detrimental to DSC performance consistent with exhibition of negligible photocurrent. A series of ruthenium photosensitizers incorporating a β-diketonate non-innocent ligand were synthesized, characterized, and implemented in dye-sensitized solar cells.
ISSN:1463-9076
1463-9084
DOI:10.1039/d1cp01853a