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Peripheral Hole Acc...
Peripheral Hole Acceptor Moieties on an Organic Dye Improve Dye-Sensitized Solar Cell Performance
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- Hao, Yan (författare)
- Uppsala universitet,Fysikalisk kemi
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- Gabrielsson, Erik (författare)
- KTH,Organisk kemi,Royal Inst Technol KTH, Organ Chem, Ctr Mol Devices, Dept Chem Chem Sci & Engn, SE-10044 Stockholm, Sweden.
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- Lohse, Peter William (författare)
- Uppsala universitet,Fysikalisk kemi
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- Yang, Wenxing (författare)
- Uppsala universitet,Fysikalisk kemi
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- Johansson, Erik M. J. (författare)
- Uppsala universitet,Fysikalisk kemi
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- Hagfeldt, Anders (författare)
- Uppsala universitet,Fysikalisk kemi
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- Sun, Licheng (författare)
- KTH,Organisk kemi,Dalian University of Technology, China,Royal Inst Technol KTH, Organ Chem, Ctr Mol Devices, Dept Chem Chem Sci & Engn, SE-10044 Stockholm, Sweden.;Dalian Univ Technol, State Key Lab Fine Chem, DUT KTH Joint Res Ctr Mol Devices, Dalian 116024, Peoples R China.
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- Boschloo, Gerrit (författare)
- Uppsala universitet,Fysikalisk kemi
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(creator_code:org_t)
- 2015-09-01
- 2015
- Engelska.
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Ingår i: Advanced Science. - : Wiley-Blackwell. - 2198-3844. ; 2:11
- Relaterad länk:
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https://onlinelibrar...
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Investigation of charge transfer dynamics in dye-sensitized solar cells is of fundamental interest and the control of these dynamics is a key factor for developing more efficient solar cell devices. One possibility for attenuating losses through recombination between injected electrons and oxidized dye molecules is to move the positive charge further away from the metal oxide surface. For this purpose, a metal-free dye named E6 is developed, in which the chromophore core is tethered to two external triphenylamine (TPA) units. After photoinduced electron injection into TiO2, the remaining hole is rapidly transferred to a peripheral TPA unit. Electron-hole recombination is slowed down by 30% compared to a reference dye without peripheral TPA units. Furthermore, it is found that the added TPA moieties improve the electron blocking effect of the dye, retarding recombination of electrons from TiO2 to the cobalt-based electrolyte.
Ämnesord
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
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