Feather-like Ag@TiO2 nanostructures as plasmonic antenna to enhance optoelectronic performance

Literature Information

Publication Date 2014-12-22
DOI 10.1039/C4CP05398B
Impact Factor 3.676
Authors

Yang Wang, Jin Zhai


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Abstract

The feather-like Ag@TiO2 nanostructures including 1-dimensional (1D) Ag nanowires and 2-dimensional (2D) TiO2 possess the features of fast electron transmission by one-dimensional metal nanomaterials, high light harvesting and electron collection by feather-like nanostructures like “plasmonic antenna” at the same time. We introduce them into photoanodes to enhance the conversion efficiency in DSSCs. The best efficiency (η) of the electrode reaches 8.16% compared with that of the pure TiO2 electrode (6.41%). The energy conversion efficiency and photocurrent density of photoanodes with Ag@TiO2 nanostructures are enhanced by about 14.5% and 27.8%, respectively, as compared with those of the pure TiO2 cells. The photoelectric properties of electrodes are investigated by optical and electrochemical measurements. Hence, the improved performances are attributed to the “plasmonic antenna” effect due to Ag@TiO2 anchored in TiO2 films.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
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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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