| DOI | Resolve DOI: https://doi.org/10.1021/acs.jpclett.5b01541 |
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| Author | Search for: Millo, Oded; Search for: Balberg, Isacc; Search for: Azulay, Doron; Search for: Purkait, Tapas K.; Search for: Swarnakar, Anindya K.; Search for: Rivard, Eric; Search for: Veinot, Jonathan G. C.1 |
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| Affiliation | - National Research Council of Canada. National Institute for Nanotechnology
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| Format | Text, Article |
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| Subject | band gap; germanium nanocrystals; quantum confinement; scanning tunneling spectroscopy |
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| Abstract | To address the yet open question regarding the nature of quantum confinement in Ge nanocrystals (Ge NCs) we employed scanning tunneling spectroscopy to monitor the electronic structure of individual isolated Ge NCs as a function of their size. The (single-particle) band gaps extracted from the tunneling spectra increase monotonically with decreasing nanocrystal size, irrespective of the capping ligands, manifesting the effect of quantum confinement. Band-gap widening of ∼1 eV with respect to the bulk value was observed for Ge-NCs 3 nm in diameter. The picture emerging from comparison with theoretical calculations and other experimental results is discussed. |
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| Publication date | 2015-08-14 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 23000828 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | ede33cd6-06fe-45d7-9a19-a6230bbab7b3 |
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| Record created | 2016-10-17 |
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| Record modified | 2020-04-22 |
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