抄録
We report strong visible photoluminescence (PL) at room temperature from oxidized Si nanometer-sized spheres with a spherical crystalline Si (c-Si) core and an amorphous SiO2 (a-SiO2) surface layer. The peak energy of the broad PL spectrum is about 1.65 eV, which is independent of the core diameter. We propose a model in which excitons are confined on a spherical shell, an interfacial layer between the c-Si core and the a-SiO2 surface layer, and in which the exciton confinement enhances the oscillator strength and the PL intensity.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 4883-4886 |
| ページ数 | 4 |
| ジャーナル | Physical Review B |
| 巻 | 48 |
| 発行部数 | 7 |
| DOI | |
| 出版物ステータス | Published - 1993 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Condensed Matter Physics
これを引用
Visible photoluminescence from oxidized Si nanometer-sized spheres : Exciton confinement on a spherical shell. / Kanemitsu, Yoshihiko; Ogawa, Tetsuo; Shiraishi, Kenji; Takeda, Kyozaburo.
：: Physical Review B, 巻 48, 番号 7, 1993, p. 4883-4886.研究成果: Article
}
TY - JOUR
T1 - Visible photoluminescence from oxidized Si nanometer-sized spheres
T2 - Exciton confinement on a spherical shell
AU - Kanemitsu, Yoshihiko
AU - Ogawa, Tetsuo
AU - Shiraishi, Kenji
AU - Takeda, Kyozaburo
PY - 1993
Y1 - 1993
N2 - We report strong visible photoluminescence (PL) at room temperature from oxidized Si nanometer-sized spheres with a spherical crystalline Si (c-Si) core and an amorphous SiO2 (a-SiO2) surface layer. The peak energy of the broad PL spectrum is about 1.65 eV, which is independent of the core diameter. We propose a model in which excitons are confined on a spherical shell, an interfacial layer between the c-Si core and the a-SiO2 surface layer, and in which the exciton confinement enhances the oscillator strength and the PL intensity.
AB - We report strong visible photoluminescence (PL) at room temperature from oxidized Si nanometer-sized spheres with a spherical crystalline Si (c-Si) core and an amorphous SiO2 (a-SiO2) surface layer. The peak energy of the broad PL spectrum is about 1.65 eV, which is independent of the core diameter. We propose a model in which excitons are confined on a spherical shell, an interfacial layer between the c-Si core and the a-SiO2 surface layer, and in which the exciton confinement enhances the oscillator strength and the PL intensity.
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UR - http://www.scopus.com/inward/citedby.url?scp=35949006582&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.48.4883
DO - 10.1103/PhysRevB.48.4883
M3 - Article
AN - SCOPUS:35949006582
VL - 48
SP - 4883
EP - 4886
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 7
ER -