Thermally controlled preferential molecular aggregation state in a thiacarbocyanine dye |
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Authors: | Passier Rémy Ritchie James P Toro Carlos Diaz Carlos Masunov Artëm E Belfield Kevin D Hernandez Florencio E |
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Institution: | Department of Chemistry, University of Central Florida, P.O. Box 162366, Orlando, Florida 32816-2366, USA. |
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Abstract: | Herein we report the experimental and theoretical study of the temperature dependence of a thiacarbocyanine dye in its monomer, H- and J-aggregates states. We demonstrate the ability to control the ratio of monomer, H- and/or J-aggregates with heat. We link such a control to the conformation dependence of the molecule. An alternative way to gain access to the dominating species without changing the concentration as a complete switching mechanism between all the present species is proposed. The results presented in this work lead to a better understanding of thiacarbocyanine dye's behavior. |
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