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Sökning: onr:"swepub:oai:DiVA.org:uu-267186" > Iron sensitizer con...

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FältnamnIndikatorerMetadata
00003840naa a2200457 4500
001oai:DiVA.org:uu-267186
003SwePub
008151119s2015 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-2671862 URI
0247 a https://doi.org/10.1038/NCHEM.23652 DOI
040 a (SwePub)uu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Harlang, Tobias C. B.u Lund Univ, Dept Chem Phys, SE-22100 Lund, Sweden.4 aut
2451 0a Iron sensitizer converts light to electrons with 92% yield
264 1c 2015
338 a print2 rdacarrier
520 a Solar energy conversion in photovoltaics or photocatalysis involves light harvesting, or sensitization, of a semiconductor or catalyst as a first step. Rare elements are frequently used for this purpose, but they are obviously not ideal for large-scale implementation. Great efforts have been made to replace the widely used ruthenium with more abundant analogues like iron, but without much success due to the very short-lived excited states of the resulting iron complexes. Here, we describe the development of an iron-nitrogen-heterocyclic-carbene sensitizer with an excited-state lifetime that is nearly a thousand-fold longer than that of traditional iron polypyridyl complexes. By the use of electron paramagnetic resonance, transient absorption spectroscopy, transient terahertz spectroscopy and quantum chemical calculations, we show that the iron complex generates photoelectrons in the conduction band of titanium dioxide with a quantum yield of 92% from the 3MLCT (metal-to-ligand charge transfer) state. These results open up possibilities to develop solar energy-converting materials based on abundant elements.
650 7a NATURVETENSKAPx Kemi0 (SwePub)1042 hsv//swe
650 7a NATURAL SCIENCESx Chemical Sciences0 (SwePub)1042 hsv//eng
7001 a Liu, Yizhuu Lund Univ, Dept Chem Phys, SE-22100 Lund, Sweden.;Lund Univ, Dept Chem, Ctr Anal & Synth, SE-22100 Lund, Sweden.4 aut
7001 a Gordivska, Olgau Lund Univ, Dept Chem, Ctr Anal & Synth, SE-22100 Lund, Sweden.4 aut
7001 a Fredin, Lisa A.u Lund Univ, Dept Chem, Theoret Chem Div, SE-22100 Lund, Sweden.4 aut
7001 a Ponseca, Carlito S., Jr.u Lund Univ, Dept Chem Phys, SE-22100 Lund, Sweden.4 aut
7001 a Huang, Pingu Uppsala universitet,Molekylär biomimetik4 aut0 (Swepub:uu)pihua498
7001 a Chabera, Pavelu Lund Univ, Dept Chem Phys, SE-22100 Lund, Sweden.4 aut
7001 a Kjaer, Kasper S.u Lund Univ, Dept Chem Phys, SE-22100 Lund, Sweden.;Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark.4 aut
7001 a Mateos, Helenau Lund Univ, Dept Chem Phys, SE-22100 Lund, Sweden.4 aut
7001 a Uhlig, Jensu Lund Univ, Dept Chem Phys, SE-22100 Lund, Sweden.4 aut
7001 a Lomoth, Reineru Uppsala universitet,Fysikalisk kemi4 aut0 (Swepub:uu)relom127
7001 a Wallenberg, Reineu Lund Univ, nCHREM, SE-22100 Lund, Sweden.4 aut
7001 a Styring, Stenbjörnu Uppsala universitet,Molekylär biomimetik4 aut0 (Swepub:uu)ststy735
7001 a Persson, Petteru Lund Univ, Dept Chem, Theoret Chem Div, SE-22100 Lund, Sweden.4 aut
7001 a Sundstroem, Villyu Lund Univ, Dept Chem Phys, SE-22100 Lund, Sweden.4 aut
7001 a Waernmark, Kennethu Lund Univ, Dept Chem, Ctr Anal & Synth, SE-22100 Lund, Sweden.4 aut
7102 a Lund Univ, Dept Chem Phys, SE-22100 Lund, Sweden.b Lund Univ, Dept Chem Phys, SE-22100 Lund, Sweden.;Lund Univ, Dept Chem, Ctr Anal & Synth, SE-22100 Lund, Sweden.4 org
7730 t Nature Chemistryg 7:11, s. 883-889q 7:11<883-889x 1755-4330x 1755-4349
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-267186
8564 8u https://doi.org/10.1038/NCHEM.2365

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