Phthalocyanine/C60 composites as improved photosensitive materials

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Publication Date
DOI 10.1039/A808599D
Impact Factor 3.676
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Abstract

We have investigated the influence of C60-fullerenes as a dopant in thin layers of phthalocyanines (Pc). We expect that C60 acts as an electron acceptor. Charge transfer of an electron from the first excited state of the Pc to C60 occurs, thus leading to an enhanced number of free holes, which are the majority charge carriers in phthalocyanine. The observation of luminescence in co-evaporated layers of phthalocyanines and C60 shows a fluorescence quenching depending on the amount of fullerenes. This shows that the admixture of C60 reduces direct recombination of electron–hole pairs and thereby increases the charge-generation efficiency. The effect on photoconductivity is established by electro-optical measurements, which show an improved current–voltage characteristic of C60-doped phthalocyanine layers.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
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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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