The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Local Field Effects on Electron Transport in Nanostructured TiO2 Revealed by Terahertz Spectroscopy
Abstract
We study electron mobilities in nanoporous and single-crystal titanium dioxide with terahertz time domain spectroscopy. This ultrafast technique allows the determination of the electron mobility after carrier thermalization with the lattice but before equilibration with defect trapping states. The mobilities reported here for single-crystal rutile (1 cm2/(V s)) and porous TiO2 (10(-2) cm2/(V s)) therefore represent upper limits for electron transport at room temperature for defect-free materials. The large difference in mobility between bulk and porous samples is explained using Maxwell-Garnett effective medium theory. These results demonstrate that electron mobility is strongly dependent on the material morphology in nanostructured polar materials due to local field effects and cannot be used as a direct measure of the diffusion coefficient.
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Citations
Cites
A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films
O'Regan, B., & Grätzel, M. (1991) · Nature · doi:10.1038/353737a0 · Cited by 28,599
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Cited by
Lead-free organic–inorganic tin halide perovskites for photovoltaic applications
Noel, N. K., Stranks, S. D., Abate, A., Wehrenfennig, C., Guarnera, S., Haghighirad, A.-A., Sadhanala, A., Eperon, G. E., Pathak, S. K., Johnston, M. B., et al. (2014) · Energy Environ. Sci. · doi:10.1039/c4ee01076k · Cited by 2,746
Carrier dynamics in semiconductors studied with time-resolved terahertz spectroscopy
Ulbricht, R., Hendry, E., Shan, J., Heinz, T. F., & Bonn, M. (2011) · Reviews of Modern Physics · doi:10.1103/revmodphys.83.543 · Cited by 1,293
Self-citationPonseca, C. S., Savenije, T. J., Abdellah, M., Zheng, K., Yartsev, A., Pascher, T., Harlang, T., Chabera, P., Pullerits, T., Stepanov, A., et al. (2014) · Journal of the American Chemical Society · doi:10.1021/ja412583t · Cited by 1,257
A Review of the Terahertz Conductivity of Bulk and Nano-Materials
Lloyd-Hughes, J., & Jeon, T.-I. (2012) · Journal of Infrared, Millimeter, and Terahertz Waves · doi:10.1007/s10762-012-9905-y · Cited by 503
Baxter, J. B., & Guglietta, G. W. (2011) · Analytical Chemistry · doi:10.1021/ac200907z · Cited by 477
Metadata
- Authors
- Hendry, E., Koeberg, M., O'Regan, B., & Bonn, M.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2006-03-29
- Volume
- 6
- Issue
- 4
- Pages
- 755-759
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W1998264391
- Cited by
- 375
- References
- 1
- FWCI
- 8.95
- Type
- journal article
- Language
- en
- Open access
- closed
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- Hendry, E., Koeberg, M., O'Regan, B., & Bonn, M. (2006). Local Field Effects on Electron Transport in Nanostructured TiO2 Revealed by Terahertz Spectroscopy. Nano Letters. https://doi.org/10.1021/nl0600225
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