The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
The effects of electron–hole separation on the photoconductivity of individual metal oxide nanowires
Open accessAbstract
The responses of individual ZnO nanowires to UV light demonstrate that the persistent photoconductivity (PPC) state is directly related to the electron-hole separation near the surface. Our results demonstrate that the electrical transport in these nanomaterials is influenced by the surface in two different ways. On the one hand, the effective mobility and the density of free carriers are determined by recombination mechanisms assisted by the oxidizing molecules in air. This phenomenon can also be blocked by surface passivation. On the other hand, the surface built-in potential separates the photogenerated electron-hole pairs and accumulates holes at the surface. After illumination, the charge separation makes the electron-hole recombination difficult and originates PPC. This effect is quickly reverted after increasing either the probing current (self-heating by Joule dissipation) or the oxygen content in air (favouring the surface recombination mechanisms). The model for PPC in individual nanowires presented here illustrates the intrinsic potential of metal oxide nanowires to develop optoelectronic devices or optochemical sensors with better and new performances.
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Citations
Cites
Piezoelectric Nanogenerators Based on Zinc Oxide Nanowire Arrays
Wang, Z. L., & Song, J. (2006) · Science · doi:10.1126/science.1124005 · Cited by 7,922
Cited by
Photogating in Low Dimensional Photodetectors
Fang, H., & Hu, W. (2017) · Advanced Science · doi:10.1002/advs.201700323 · Cited by 986
Ultrahigh-Gain Photodetectors Based on Atomically Thin Graphene-MoS2 Heterostructures
Zhang, W., Chuu, C.-P., Huang, J.-K., Chen, C.-H., Tsai, M.-L., Chang, Y.-H., Liang, C.-T., Chen, Y.-Z., Chueh, Y.-L., He, J.-H., et al. (2014) · Scientific Reports · doi:10.1038/srep03826 · Cited by 911
Jeon, S., Ahn, S.-E., Song, I., Kim, C. J., Chung, U.-I., Lee, E., Yoo, I., Nathan, A., Lee, S., Ghaffarzadeh, K., et al. (2012) · Nature Materials · doi:10.1038/nmat3256 · Cited by 577
Recent Developments in One‐Dimensional Inorganic Nanostructures for Photodetectors
Zhai, T., Li, L., Wang, X., Fang, X., Bando, Y., & Golberg, D. (2010) · Advanced Functional Materials · doi:10.1002/adfm.201001259 · Cited by 339
Metadata
- Authors
- Prades, J. D., Hernandez-Ramirez, F., Jimenez-Diaz, R., Manzanares, M., Andreu, T., Cirera, A., Romano-Rodriguez, A., & Morante, J. R.
- Venue
- Nanotechnology
- Publisher
- IOP Publishing
- Published
- 2008-10-22
- Volume
- 19
- Issue
- 46
- Pages
- 465501
- ISSN
- 0957-4484 (ISSN-L)
- 1361-6528
- OpenAlex
- W1969603778
- Cited by
- 179
- References
- 1
- FWCI
- 6.06
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Prades, J. D., Hernandez-Ramirez, F., Jimenez-Diaz, R., Manzanares, M., Andreu, T., Cirera, A., Romano-Rodriguez, A., & Morante, J. R. (2008). The effects of electron–hole separation on the photoconductivity of individual metal oxide nanowires. Nanotechnology. https://doi.org/10.1088/0957-4484/19/46/465501
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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