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Photophysics and photochemistry of iron carbene complexes for solar energy conversion and photocatalysis

Lindh, Linnea LU ; Chábera, Pavel LU ; Rosemann, Nils W. LU ; Uhlig, Jens LU ; Wärnmark, Kenneth LU ; Yartsev, Arkady LU ; Sundström, Villy LU and Persson, Petter LU (2020) In Catalysts 10(3).
Abstract

Earth-abundant first row transition metal complexes are important for the development of large-scale photocatalytic and solar energy conversion applications. Coordination compounds based on iron are especially interesting, as iron is the most common transition metal element in the Earth’s crust. Unfortunately, iron-polypyridyl and related traditional iron-based complexes generally suffer from poor excited state properties, including short excited-state lifetimes, that make them unsuitable for most light-driven applications. Iron carbene complexes have emerged in the last decade as a new class of coordination compounds with significantly improved photophysical and photochemical properties, that make them attractive candidates for a range... (More)

Earth-abundant first row transition metal complexes are important for the development of large-scale photocatalytic and solar energy conversion applications. Coordination compounds based on iron are especially interesting, as iron is the most common transition metal element in the Earth’s crust. Unfortunately, iron-polypyridyl and related traditional iron-based complexes generally suffer from poor excited state properties, including short excited-state lifetimes, that make them unsuitable for most light-driven applications. Iron carbene complexes have emerged in the last decade as a new class of coordination compounds with significantly improved photophysical and photochemical properties, that make them attractive candidates for a range of light-driven applications. Specific aspects of the photophysics and photochemistry of these iron carbenes discussed here include long-lived excited state lifetimes of charge transfer excited states, capabilities to act as photosensitizers in solar energy conversion applications like dye-sensitized solar cells, as well as recent demonstrations of promising progress towards driving photoredox and photocatalytic processes. Complementary advances towards photofunctional systems with both Fe(II) complexes featuring metal-to-ligand charge transfer excited states, and Fe(III) complexes displaying ligand-to-metal charge transfer excited states are discussed. Finally, we outline emerging opportunities to utilize the improved photochemical properties of iron carbenes and related complexes for photovoltaic, photoelectrochemical and photocatalytic applications.

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author
; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Artificial photosynthesis, Dye-sensitized solar cells, Iron, N-heterocyclic carbene (NHC), Photocatalysis, Photochemistry, Photophysics, Solar energy conversion, Solar fuels
in
Catalysts
volume
10
issue
3
article number
315
publisher
Multidisciplinary Digital Publishing Institute (MDPI)
external identifiers
  • scopus:85081559760
ISSN
2073-4344
DOI
10.3390/catal10030315
language
English
LU publication?
yes
id
4de35813-cad8-40cf-807a-8b525e082aad
date added to LUP
2020-04-01 17:02:04
date last changed
2020-10-07 06:56:21
@article{4de35813-cad8-40cf-807a-8b525e082aad,
  abstract     = {<p>Earth-abundant first row transition metal complexes are important for the development of large-scale photocatalytic and solar energy conversion applications. Coordination compounds based on iron are especially interesting, as iron is the most common transition metal element in the Earth’s crust. Unfortunately, iron-polypyridyl and related traditional iron-based complexes generally suffer from poor excited state properties, including short excited-state lifetimes, that make them unsuitable for most light-driven applications. Iron carbene complexes have emerged in the last decade as a new class of coordination compounds with significantly improved photophysical and photochemical properties, that make them attractive candidates for a range of light-driven applications. Specific aspects of the photophysics and photochemistry of these iron carbenes discussed here include long-lived excited state lifetimes of charge transfer excited states, capabilities to act as photosensitizers in solar energy conversion applications like dye-sensitized solar cells, as well as recent demonstrations of promising progress towards driving photoredox and photocatalytic processes. Complementary advances towards photofunctional systems with both Fe(II) complexes featuring metal-to-ligand charge transfer excited states, and Fe(III) complexes displaying ligand-to-metal charge transfer excited states are discussed. Finally, we outline emerging opportunities to utilize the improved photochemical properties of iron carbenes and related complexes for photovoltaic, photoelectrochemical and photocatalytic applications.</p>},
  author       = {Lindh, Linnea and Chábera, Pavel and Rosemann, Nils W. and Uhlig, Jens and Wärnmark, Kenneth and Yartsev, Arkady and Sundström, Villy and Persson, Petter},
  issn         = {2073-4344},
  language     = {eng},
  month        = {03},
  number       = {3},
  publisher    = {Multidisciplinary Digital Publishing Institute (MDPI)},
  series       = {Catalysts},
  title        = {Photophysics and photochemistry of iron carbene complexes for solar energy conversion and photocatalysis},
  url          = {http://dx.doi.org/10.3390/catal10030315},
  doi          = {10.3390/catal10030315},
  volume       = {10},
  year         = {2020},
}