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Photogenerated Exciton Dissociation in Highly Coupled Lead Salt Nanocrystal Assemblies
Abstract
Internanocrystal coupling induced excitons dissociation in lead salt nanocrystal assemblies is investigated. By combining transient photoluminescence spectroscopy, grazing incidence small-angle X-ray scattering, and time-resolved electric force microscopy, we show that excitons can dissociate, without the aid of an external bias or chemical potential gradient, via tunneling through a potential barrier when the coupling energy is comparable to the exciton binding energy. Our results have important implications for the design of nanocrystal-based optoelectronic devices.
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Sun, L., Choi, J. J., Stachnik, D., Bartnik, A. C., Hyun, B.-R., Malliaras, G. G., Hanrath, T., & Wise, F. W. (2012) · Nature Nanotechnology · doi:10.1038/nnano.2012.63 · Cited by 517
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Xu, J., Voznyy, O., Liu, M., Kirmani, A. R., Walters, G., Munir, R., Abdelsamie, M., Proppe, A. H., Sarkar, A., García de Arquer, F. P., et al. (2018) · Nature Nanotechnology · doi:10.1038/s41565-018-0117-z · Cited by 316
Metadata
- Authors
- Choi, J. J., Luria, J., Hyun, B.-R., Bartnik, A. C., Sun, L., Lim, Y.-F., Marohn, J. A., Wise, F. W., & Hanrath, T.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-04-26
- Volume
- 10
- Issue
- 5
- Pages
- 1805-1811
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W1963719146
- Cited by
- 224
- References
- 0
- FWCI
- 7.88
- Type
- journal article
- Language
- en
- Open access
- closed
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- Choi, J. J., Luria, J., Hyun, B.-R., Bartnik, A. C., Sun, L., Lim, Y.-F., Marohn, J. A., Wise, F. W., & Hanrath, T. (2010). Photogenerated Exciton Dissociation in Highly Coupled Lead Salt Nanocrystal Assemblies. Nano Letters. https://doi.org/10.1021/nl100498e
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