In:
Journal of Porphyrins and Phthalocyanines, World Scientific Pub Co Pte Ltd, Vol. 13, No. 07 ( 2009-07), p. 798-804
Abstract:
We have designed and synthesized novel Zn(II) -porphyrin derivatives for dye-sensitized solar cells. The derivatives incorporate the electron-donating group of a pendant triphenylamine into cyano-substituted ( [TPA]Zn-Por-CN1 ) or non-substituted stilbene moiety ( [TPA] Zn-Por1 ) in the 5,10,15-meso-position and carboxylic acid group in the 20-meso-position in a porphyrin derivative. Their chemical structures were characterized by 1 H NMR, FT-IR, UV-vis absorption, EI-mass, and MALDI-TOF mass spectroscopies. Their electrochemical properties were studied by cyclic voltammetry measurement. These Zn(II) -porphyrin derivatives have been used to fabricate dye-sensitized solar cells based on I-/I 2 liquid electrolytes as dye sensitizers and their device performances were evaluated by comparing with that of a standard Ru(II) complex dye. [TPA]Zn-Por-CN1 showed higher power conversion efficiency than that of [TPA] Zn-Por1 , due to a broader absorption band around 435 nm. Short-circuit photocurrent density (J sc ), open-circuit voltage (V oc ), fill factor (FF), and power conversion efficiency (η) of DSSC for [TPA]Zn-Por-CN1 were evaluated to be J sc = 6.3 mA.cm -2 , V oc = 0.737 V , FF = 0.683 , and η = 3.1% , respectively.
Type of Medium:
Online Resource
ISSN:
1088-4246
,
1099-1409
DOI:
10.1142/S1088424609000978
Language:
English
Publisher:
World Scientific Pub Co Pte Ltd
Publication Date:
2009
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