Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/33821
標題: Electronically coupled porphyrin-arene dyads for dye-sensitized solar cells
作者: Lee, Cheng-Wei
Lu, Hsueh-Pei
Reddy, Nagannagari Masi
Lee, Hsuan-Wei
Diau, Eric Wei-Guang
Yeh, Chen-Yu
關鍵字: pi-Conjugation
Dye-sensitized solar cells
Electronic coupling
Light-harvesting
Perylenes
Porphyrins
photovoltaic properties
tio2
photosensitization
substituents
performance
摘要: An acetylene-linked porphyrin-perylene anhydride and an acetylene-linked porphyrin-naphthalic anhydride have been synthesized; the highly conjugated acetylenic bridge in these porpyrins efficiently mediates electronic interaction between the porphyrin and perylene units to extend the pi-conjugation of the porphyrin dye and to cause both broadening and red shifts of both the Soret and Q absorption bands. This condition is a useful feature for efficient dye-sensitized solar cell applications. The optical, electrochemical and photovoltaic properties of the new linked anhydrides show that the HOMO-LUMO gap decreased upon extension of pi-conjugation, indicating a strong electronic coupling between the porphyrin and the perylene or naphthalene unit. (C) 2011 Elsevier Ltd. All rights reserved.
URI: http://hdl.handle.net/11455/33821
ISSN: 0143-7208
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