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Title: Conjugated organic dyes for dye-sensitized solar cells
Authors: Giribabu, L
Chandrasekheram, M
Kantham, M Lakshmi
Reddy, V Gopal
Satyanarayana, D
Rao, O S
Reddy, P Yella
Issue Date: Mar-2006
Publisher: NISCAIR-CSIR, India
IPC Code: C09B; H01L31/00
Abstract: A new metal-free sensitizer 2-[3-(4-dimethyl amino-phenyl)-allylidene]-malonic acid (2) has been synthesized by the condensation of N,N'-dimethylaminocinnaldehyde and malonic acid. This dye has two carboxyl groups on the same carbon atom, which act as better electron withdrawing groups in addition to providing effective anchoring to titanium dioxide. The new dye has characterized by UV –Vis, 1H NMR and CHN analysis. Dye-sensitized nanocrystalline-titanium dioxidese miconductor solar cells (DSSC) have been tested in a stable and durable redox electrolyte. The efficiency of dye is as high as 1.38%. The dye molecule is thermally stable up to 100oC.
Page(s): 629-634
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections: IJC-A Vol.45A(03) [March 2006]

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