Abstract
The optical property was studied on the Si0.8Ge0.2/Si strained multiple quantum well (MQW) structure grown using ultra-high vacuum chemical vapor deposition (UHV-CVD). Three peaks are observed in Raman spectrum, which are located at about 510, 410, and 300 cm-1, corresponding to the vibration of SiSi, SiGe, and GeGe phonons, respectively. The photoluminescence (PL) spectrum originates from the radiative recombinations both from the Si substrate and the Si0.8Ge0.2/Si MQW. For Si0.8Ge0.2/Si strained MQW, the transition peaks related to the MQW region observed in the photocurrent (PC) spectrum were preliminarily assigned to electronheavy hole (ehh) and electronlight hole (elh) fundamental excitonic transitions.
| Original language | English |
|---|---|
| Pages (from-to) | 128-132 |
| Number of pages | 5 |
| Journal | Materials Science in Semiconductor Processing |
| Volume | 14 |
| Issue number | 2 |
| DOIs | |
| State | Published - 2011.06 |
Keywords
- MQW
- PC
- PL
- Raman
- SiGe
- UHV-CVD
Quacquarelli Symonds(QS) Subject Topics
- Materials Science
- Engineering - Mechanical
- Physics & Astronomy
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