Abstract
The isolation of silicon nanocrystals embedded in SiO 2 and isolated nanocrystals' excitonic emission energy were investigated during controlled oxidation. The nanocrystals with diameters of ∼2.9-3.4 nm exhibited photoluminescence (PL) blueshift upon oxidatively induced size reduction. The oxidation of smaller Si nanocrystals resulted in a PL blueshift, but a redshift in the PL was observed after growth of ∼0.3 monolayers of native oxide. The results show that decrease in excitonic emission energy during oxidation is consistent with formation of an oxygen-related excitonic recombination state.
| Original language | English |
|---|---|
| Pages (from-to) | 5389-5391 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 84 |
| Issue number | 26 |
| DOIs | |
| Publication status | Published - Jun 28 2004 |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
Size-dependent oxygen-related electronic states in silicon nanocrystals. / Biteen, J. S.; Lewis, Nathan S; Atwater, H. A.; Polman, A.
In: Applied Physics Letters, Vol. 84, No. 26, 28.06.2004, p. 5389-5391.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Size-dependent oxygen-related electronic states in silicon nanocrystals
AU - Biteen, J. S.
AU - Lewis, Nathan S
AU - Atwater, H. A.
AU - Polman, A.
PY - 2004/6/28
Y1 - 2004/6/28
N2 - The isolation of silicon nanocrystals embedded in SiO 2 and isolated nanocrystals' excitonic emission energy were investigated during controlled oxidation. The nanocrystals with diameters of ∼2.9-3.4 nm exhibited photoluminescence (PL) blueshift upon oxidatively induced size reduction. The oxidation of smaller Si nanocrystals resulted in a PL blueshift, but a redshift in the PL was observed after growth of ∼0.3 monolayers of native oxide. The results show that decrease in excitonic emission energy during oxidation is consistent with formation of an oxygen-related excitonic recombination state.
AB - The isolation of silicon nanocrystals embedded in SiO 2 and isolated nanocrystals' excitonic emission energy were investigated during controlled oxidation. The nanocrystals with diameters of ∼2.9-3.4 nm exhibited photoluminescence (PL) blueshift upon oxidatively induced size reduction. The oxidation of smaller Si nanocrystals resulted in a PL blueshift, but a redshift in the PL was observed after growth of ∼0.3 monolayers of native oxide. The results show that decrease in excitonic emission energy during oxidation is consistent with formation of an oxygen-related excitonic recombination state.
UR - http://www.scopus.com/inward/record.url?scp=3242737447&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=3242737447&partnerID=8YFLogxK
U2 - 10.1063/1.1765200
DO - 10.1063/1.1765200
M3 - Article
VL - 84
SP - 5389
EP - 5391
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 26
ER -