The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.
Dynamics of efficient electron–hole separation in TiO2nanoparticles revealed by femtosecond transient absorption spectroscopy under the weak-excitation condition
Abstract
The transient absorption of nanocrystalline TiO(2) films in the visible and IR wavelength regions was measured under the weak-excitation condition, where the second-order electron-hole recombination process can be ignored. The intrinsic dynamics of the electron-hole pairs in the femtosecond to picosecond time range was elucidated. Surface-trapped electrons and surface-trapped holes were generated within approximately 200 fs (time resolution). Surface-trapped electrons, which gave an absorption peak at around 800 nm, and bulk electrons, which absorbed in the IR wavelength region, decayed with a 500-ps time constant due to relaxation into deep bulk trapping sites. It is already known that, after this relaxation, electrons and holes survive for microseconds. We interpreted these long lifetimes in terms of the prompt spatial charge separation of electrons in the bulk and holes at the surface.
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Paramasivam, I., Jha, H., Liu, N., & Schmuki, P. (2012) · Small · doi:10.1002/smll.201200564 · Cited by 687
Ji, Y., & Luo, Y. (2016) · Journal of the American Chemical Society · doi:10.1021/jacs.6b05695 · Cited by 339
Maeda, K., Teramura, K., & Domen, K. (2008) · Journal of Catalysis · doi:10.1016/j.jcat.2007.12.009 · Cited by 295
Metadata
- Authors
- Tamaki, Y., Furube, A., Murai, M., Hara, K., Katoh, R., & Tachiya, M.
- Venue
- Phys. Chem. Chem. Phys.
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2007
- Volume
- 9
- Issue
- 12
- Pages
- 1453-1460
- ISSN
- 1463-9076 (ISSN-L)
- 1463-9084
- OpenAlex
- W2001499501
- Cited by
- 289
- References
- 36
- FWCI
- 5.39
- Type
- journal article
- Language
- en
- Open access
- closed
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- Tamaki, Y., Furube, A., Murai, M., Hara, K., Katoh, R., & Tachiya, M. (2007). Dynamics of efficient electron–hole separation in TiO2nanoparticles revealed by femtosecond transient absorption spectroscopy under the weak-excitation condition. Phys. Chem. Chem. Phys. https://doi.org/10.1039/b617552j
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