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Ru-based donor-acce...
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Freys, Jonathan C.Uppsala universitet,Fysikalisk kemi,Uppsala University
(författare)
Ru-based donor-acceptor photosensitizer that retards charge recombination in a p-type dye-sensitized solar cell
- Artikel/kapitelEngelska2012
Förlag, utgivningsår, omfång ...
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Royal Society of Chemistry (RSC),2012
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:uu-184904
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-184904URI
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https://doi.org/10.1039/c2dt30829kDOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-104243URI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
Anmärkningar
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QC 20121115
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We report on the synthesis and characterization of a donor-acceptor ruthenium polypyridyl complex as a photosensitizer for p-type dye-sensitized solar cells (DSSCs). The electrochemical, photophysical, and photovoltaic performance of two ruthenium-based photosensitizers were tested in NiO-based DSSCs; bis-(2,2′-bipyridine-4,4′-dicarboxylic acid) 2N-(1,10-phenanthroline)-4-nitronaphthalene-1,8-dicarboximide ruthenium(ii), ([Ru(dcb) 2(NMI-phen)](PF 6) 2) and tris-(2,2′-bipyridine-4,4′-dicarboxylic acid) 3 ruthenium(ii), [(Ru(dcb) 3)Cl 2]. The presence of an electron-accepting group, 4-nitronaphthalene-1,8-dicarboximide (NMI), attached to the phenanthroline of [Ru(dcb) 2(NMI-phen)] 2+ resulted in long-lived charge separation between reduced [Ru(dcb) 2(NMI-phen)] 2+ and NiO valence band holes; 10-50 μs. In the reduced state for [Ru(dcb) 2(NMI-phen)] 2+, the electron localized on the distal NMI group. In tests with I 3 -/I - and Co(4,4′-di-tert-butyl-bipyridine) 3 2+/3+ electrolytes, [Ru(dcb) 2(NMI-phen)] 2+ outperformed [Ru(dcb) 3] 2+ in solar cell efficiency in devices. A record APCE (25%) was achieved for a ruthenium photosensitizer in a p-type DSSC. Insights on photosensitizer regeneration kinetics are included.
Ämnesord och genrebeteckningar
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NATURVETENSKAP Kemi Oorganisk kemi hsv//swe
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NATURAL SCIENCES Chemical Sciences Inorganic Chemistry hsv//eng
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1
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10-phenanthroline
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Charge recombinations
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Charge separations
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Dicarboxylic acid
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Donor-acceptors
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Dye-Sensitized solar cell
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Dye-sensitized solar cells
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Electron-accepting
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P-type
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Phenanthrolines
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Photophysical
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Photovoltaic performance
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Reduced-state
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Ruthenium polypyridyl complexes
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Solar cell efficiencies
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Valence-band holes
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Photoelectrochemical cells
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Ruthenium
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Ruthenium compounds
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Solar cells
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Photosensitizers
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SRA - Energy
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Gardner, James M.,1982-KTH,Uppsala universitet,Institutionen för kemi - Ångström,Tillämpad fysikalisk kemi(Swepub:kth)u1r55ysm
(författare)
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D'Amario, LucaUppsala universitet,Institutionen för kemi - Ångström,Uppsala University
(författare)
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Brown, Allison M.Uppsala universitet,Fysikalisk kemi,Uppsala University(Swepub:uu)allbr429
(författare)
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Hammarström, LeifUppsala universitet,Fysikalisk kemi,Uppsala University(Swepub:uu)leifhamm
(författare)
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Uppsala universitetFysikalisk kemi
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Dalton Transactions: Royal Society of Chemistry (RSC)41:42, s. 13105-131111477-92261477-9234
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