Intense green light from a silyl-substituted poly(p-phenylenevinylene)-based light-emitting diode with air-stable cathode
文献情報
A silicon-containing poly(p-phenylenevinylene) derivative, poly[2,5-bis(butyldimethylsilyl)-1,4-phenylenevinylene] (BS-PPV), was synthesized via the Gilch reaction. The polymer is fully solution processable with high thermal stability. The UV-Vis absorption and fluorescent emission spectra demonstrate that BS-PPV is a promising green emissive material for light-emitting device application. Cyclic voltammetric measurements indicate that it can be reversibly n-doped and irreversibly p-doped with the onset oxidation and reduction potentials of 1.16 and -1.81 V, respectively. The HOMO and LUMO energy levels of BS-PPV were estimated to be 5.56 and 2.59 eV, respectively. Single layer devices with the configuration ITO/BS-PPV/Al were fabricated, which showed a turn-on voltage of 6 V and intense green light was observed at around 7.5 V. The performance is better than that of devices fabricated with other silicon-containing PPV-based polymers.
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Physical Chemistry Chemical Physics

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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