Das, Sukhen and Basu, R and Ghosh, A and Minch, M and Nandy, P (1995) Heat-induced voltage generation in hexadecyl merocyanine dye-probed planar lipid-membranes. Dyes ad Pigments, 27 (4). pp. 333-338. ISSN 0143-7208

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A hexadecyl merocyanine dye was used as a heat driven proton gate, by incorporating it in a planar lipid membrane which is a good model for biological membranes. Being hydrophobic in nature, it prevents charge recombination, and transmembrane voltages of high magnitude (similar to 310 mV) were obtained upon heating. The process was reversible and the whole cycle took about 20 h, suggesting that the system could be used as a heat driven storage cell. Comparison of the X-ray diffraction patterns of the thin films of the dye at 30 degrees C showed a heat-induced conformational change in the crystalline structure of the dye. From differential thermal analysis three reversible phase transitions were observed, at 39.2 degrees C, 53.7 degrees C and 62.1 degrees C, and the associated enthalpy changes were calculated The results indicate that the heat-induced conformational change of the dye molecule is responsible for the observed thermovoltage generation.

Item Type: Article
Subjects: Engineering Materials
Depositing User: Bidhan Chaudhuri
Date Deposited: 22 Aug 2012 06:40
Last Modified: 22 Aug 2012 06:40
URI: http://cgcri.csircentral.net/id/eprint/1757

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