Abstract
In an aqueous acidic solution, the porphyrin meso-tetra(4-sulfonatophenyl) porphyrin tetrasodium salt (TPPS) forms different kinds of assembly (micro-rods and micro-brush) depending on condition of evaporation. The exciton dynamics and emission spectra of the micro-rods and micro-brushes depend on spatial inhomogeneity. This is elucidated by time-resolved confocal microscopy.
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Acknowledgements
Thanks are due to Department of Science and Technology, India (Centre for Ultrafast Spectroscopy and Microscopy Project and J. C. Bose Fellowship) and the Council of Scientific and Industrial Research (CSIR) for generous research support. SC thanks CSIR for awarding fellowships.
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Dedicated to Professor T K Chandrasekhar on the occasion of his 60th birth anniversary
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CHATTORAJ, S., BHATTACHARYYA, K. Spatial inhomogeneity in spectra and exciton dynamics in porphyrin micro-rods and micro-brushes: Confocal microscopy. J Chem Sci 128, 1717–1724 (2016). https://doi.org/10.1007/s12039-016-1155-4
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DOI: https://doi.org/10.1007/s12039-016-1155-4