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FTIR Spectra of Lead Phthalocyanine Hydrogen-Bonded with Six Dyes

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Journal of Applied Spectroscopy Aims and scope

In the present work, lead phthalocyanine, a well-known one-dimensional conductor, was hydrogen-bonded with six highly polarizable dyes, namely Bismark brown, Congo red, Para red, Direct red, Evans blue, and Trypan blue. The presence of hydrogen bonding was verified with FTIR spectroscopy. FTIR spectra also give further information about phonon-assisted creation of free excitons and electron-hole pairs. An intrinsic absorption edge spectrum was found to be modified by exciton-phonon coupling. There are threshold energies for the formation of excitons with phonon emission. Also, noise in the absorption spectrum was found near the band edges. This is an infrared analogy of what is observed in gallium phosphide and other ionic semiconductors.

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Authors and Affiliations

  1. Sardar Patel University, Vallabh Vidyanagar, 388120, Gujarat, India

    K. J. Dodia & A. T. Oza

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  1. K. J. Dodia
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  2. A. T. Oza
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Correspondence to K. J. Dodia.

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Published in Zhurnal Prikladnoi Spektroskopii, Vol. 80, No. 6, pp. 854–858, November–December, 2013.

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Dodia, K.J., Oza, A.T. FTIR Spectra of Lead Phthalocyanine Hydrogen-Bonded with Six Dyes. J Appl Spectrosc 80, 846–850 (2014). https://doi.org/10.1007/s10812-014-9854-4

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  • DOI: https://doi.org/10.1007/s10812-014-9854-4

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