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Comparative Studies...
Comparative Studies on Rigid pi Linker-Based Organic Dyes : Structure-Property Relationships and Photovoltaic Performance
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- Li, Hairong (författare)
- Nanyang Technol Univ, Energy Res Inst NTU ERI N, Sch Mat Sci & Engn, Singapore 637553, Singapore
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- Koh, Teck Ming (författare)
- Nanyang Technol Univ, Energy Res Inst NTU ERI N, Sch Mat Sci & Engn, Singapore 637553, Singapore
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- Hao, Yan (författare)
- Uppsala universitet,Fysikalisk kemi
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- Zhou, Feng (författare)
- Nanyang Technol Univ, Energy Res Inst NTU ERI N, Sch Mat Sci & Engn, Singapore 637553, Singapore
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- Abe, Yuichiro (författare)
- Nanyang Technol Univ, Energy Res Inst NTU ERI N, Sch Mat Sci & Engn, Singapore 637553, Singapore
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- Su, Haibin (författare)
- Nanyang Technol Univ, Energy Res Inst NTU ERI N, Sch Mat Sci & Engn, Singapore 637553, Singapore
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- Hagfeldt, Anders (författare)
- Uppsala universitet,Fysikalisk kemi
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- Grimsdale, Andrew C. (författare)
- Nanyang Technol Univ, Energy Res Inst NTU ERI N, Sch Mat Sci & Engn, Singapore 637553, Singapore
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(creator_code:org_t)
- 2014-10-15
- 2014
- Engelska.
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Ingår i: ChemSusChem. - : Wiley. - 1864-5631 .- 1864-564X. ; 7:12, s. 3396-3406
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- A series of six structurally correlated donor-pi bridge-acceptor organic dyes were designed, synthesized, and applied as sensitizers in dye-sensitized solar cells. Using the most widely studied donor (triarylamine) and cyclopenta[1,2-b:5,4-b’]dithiophene or cyclopenta[1,2-b: 5,4-b’] dithiophene[2’,1’:4,5]thieno[2,3-d] thiophene as pi spacers, their structure-property relationships were investigated in depth by photophysical techniques and theoretical calculations. It was found that the photovoltaic performance of these dyes largely depends on their electronic structures, which requires synergistic interaction between donors and acceptors. Increasing the electron richness of the donor or the elongation of pi-conjugated bridges does not necessarily lead to higher performance. Rather, it is essential to rationally design the dyes by balancing their light-harvesting capability with achieving suitable energy levels to guarantee unimpeded charge separation and transport.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Nyckelord
- cyclic voltammetry; density functional calculations; dyes/pigments; electrochemistry; solar cells
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