<div class="csl-bib-body">
<div class="csl-entry">Kemnade, N., Gebhardt, P., Haselmann, G. M., Cherevan, A., Wilde, G., & Eder, D. (2018). How to Evaluate and Manipulate Charge Transfer and Photocatalytic Response at Hybrid Nanocarbon-Metal Oxide Interfaces. <i>Advanced Functional Materials</i>, <i>28</i>(17), 1704730. https://doi.org/10.1002/adfm.201704730</div>
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dc.identifier.issn
1616-301X
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/144785
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dc.description.abstract
Nanocarbon-metal oxide hybrids are among the most promising functional materials in many cutting-edge environmental and energy applications
where efficient charge separation and extraction are keys to success. The next level of hybrid structures will be achieved once one learns how to control and tune charge/energy transfer processes at the interfaces. However, little is yet known about the nature and extent of these interfacial dynamics in nanocarbon hybrids. Here a model is designed in which ultrathin dielectric layers (Al2O3, ZrO2) between the hybrid's components (ZnO, TiO2) and carbon nanotubes allow for evaluating and tuning of interfacial charge transfer over an unusually long distance of at least 50 nm. Surprisingly, the transfer efficiency correlates linearly with the barrier layer thickness, indicating that electron conduction through the barrier layer constitutes the ratelimiting step. It is also demonstrated that the charge transfer efficiency can be tuned by the type of interlayer and its degree of crystallinity, thus controlling the hybrid's performance in the photocatalytic production of hydrogen. It is believed that this model system will help to understand and decipher the fundamentals regarding interfacial charge and energy transfer in nanocarbon hybrids with the aim to further advance these hybrid structures for a wide range of energy applications.
en
dc.language.iso
en
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dc.publisher
WILEY-V C H VERLAG GMBH
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dc.relation.ispartof
Advanced Functional Materials
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dc.subject
Condensed Matter Physics
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dc.subject
Electronic, Optical and Magnetic Materials
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dc.subject
Biomaterials
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dc.subject
Electrochemistry
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dc.title
How to Evaluate and Manipulate Charge Transfer and Photocatalytic Response at Hybrid Nanocarbon-Metal Oxide Interfaces