抜粋
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 1 1 |
| 外部発表 | Yes |
ASJC Scopus subject areas
- Condensed Matter Physics
フィンガープリント Visible photoluminescence from oxidized Si nanometer-sized spheres: Exciton confinement on a spherical shell' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。
これを引用
Kanemitsu, Y., Ogawa, T., Shiraishi, K., & Takeda, K. (1993). Visible photoluminescence from oxidized Si nanometer-sized spheres: Exciton confinement on a spherical shell. Physical Review B, 48(7), 4883-4886. https://doi.org/10.1103/PhysRevB.48.4883