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Excitonic Effects and the Optical Absorption Spectrum of Hydrogenated Si Clusters
Abstract
We calculate the optical absorption spectrum of hydrogen-terminated silicon clusters by solving the Bethe-Salpeter equation for the two-particle Green's function using an ab initio approach. The one-particle Green's function and the electron-hole interaction kernel are calculated within the $\mathrm{GW}$ approximation for the electron self-energy operator. Very large exciton binding energies are observed. Our results for the one-particle properties and the optical absorption spectra of the clusters are in very good agreement with available experimental data.
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Cites
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A luminescent silicon nanocrystal colloid via a high-temperature aerosol reaction
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Cited by
Electronic excitations: density-functional versus many-body Green’s-function approaches
Onida, G., Reining, L., & Rubio, A. (2002) · Reviews of Modern Physics · doi:10.1103/revmodphys.74.601 · Cited by 4,155
Ab Initio Excitation Spectra and Collective Electronic Response in Atoms and Clusters
Vasiliev, I., Öğüt, S., & Chelikowsky, J. R. (1999) · Physical Review Letters · doi:10.1103/physrevlett.82.1919 · Cited by 254
Silicon quantum dots: surface matters
Dohnalová, K., Gregorkiewicz, T., & Kůsová, K. (2014) · Journal of Physics: Condensed Matter · doi:10.1088/0953-8984/26/17/173201 · Cited by 253
Electronic-structure methods for materials design
Marzari, N., Ferretti, A., & Wolverton, C. (2021) · Nature Materials · doi:10.1038/s41563-021-01013-3 · Cited by 253
Metadata
- Authors
- Rohlfing, M., & Louie, S. G.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1998-04-13
- Volume
- 80
- Issue
- 15
- Pages
- 3320-3323
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1644357796
- Cited by
- 362
- References
- 18
- FWCI
- 15.75
- Type
- journal article
- Language
- en
- Open access
- closed
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- Rohlfing, M., & Louie, S. G. (1998). Excitonic Effects and the Optical Absorption Spectrum of Hydrogenated Si Clusters. Physical Review Letters. https://doi.org/10.1103/physrevlett.80.3320
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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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