Spectroscopic evidence for adsorption-induced polymerisation of terthiophene at silver surfaces

Literature Information

Publication Date 2000-10-26
DOI 10.1039/B005892K
Impact Factor 3.676
Authors

Giuseppe Compagnini, Angela De Bonis, Rosario S. Cataliotti, Giovanni Marletta


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Abstract

The adsorption process of 2,2′: 2′,5″-terthiophene molecules on two different types of silver surfaces was studied by means of surface enhanced Raman scattering (SERS) and UV–Vis absorption spectroscopy. Both techniques support the hypothesis of an adsorption-induced polymerisation process of these molecules. The vibrational pattern of the chemisorbed layer was found to be almost identical with that of bulk polythiophene samples and a red shift from 3.5 to 2.5 eV of the electronic absorption is observed in agreement with the Kuhn–Kuhn model. A concomitant decrease in visible photoluminescence was also observed.

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Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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