Journal
TETRAHEDRON LETTERS
Volume 48, Issue 14, Pages 2461-2465Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2007.02.034
Keywords
cyanine dyes; dye sensitized solar cell; naphthalimide
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Two novel cyanine dyads, in which a naphthalimide unit is attached to benzoindole ring of unsymmetric trimethine cyanine, have been synthesized via 'Click' reaction and characterized by H-1 NMR, C-13 NMR, and MS-ESI. Under the illumination of AM 1.5 (75 mW cm(-2)), the power conversion efficiency of cyanine I reached 4.8% (J(sc) = 14.5 mA cm(-2), V-oc = 0.50, FF = 0.49). The results show that the two cyanine dyes are promising sensitizers for nanocrystalline dye-sensitized solar cell. (c) 2007 Elsevier Ltd. All rights reserved.
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