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In bulk semiconductors, the absorption of one photon of energy greater than the bandgap leads to one exciton. In quantum dots, however, it could be possible to create multiple excitons from
a single high-energy photon, a finding with dramatic implications for the efficiencies of devices such as solar cells. Access through your institution Buy or subscribe This is a preview of
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ADDITIONAL ACCESS OPTIONS: * Log in * Learn about institutional subscriptions * Read our FAQs * Contact customer support REFERENCES * Gmachl, C. et al. _Rep. Prog. Phys._ 64, 1533–1601
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Scholar Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Chemistry and Physics Departments, University of Chicago, Chicago, 60637, Illinois, USA Philippe Guyot-Sionnest
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THIS ARTICLE Guyot-Sionnest, P. A new quantum state?. _Nature Mater_ 4, 653–654 (2005). https://doi.org/10.1038/nmat1473 Download citation * Issue Date: 01 September 2005 * DOI:
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