کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1644280 | 1517265 | 2014 | 5 صفحه PDF | دانلود رایگان |

• Fabrication of the AlGaAs film grown on lattice-mismatched sapphire substrate.
• Study of characteristics of AlGaAs film on sapphire substrate using a GaAs buffer layer.
• Outstanding resistivity of p-AlGaAs film on sapphire substrate.
The characteristics of AlGaAs films grown directly on a lattice-mismatched Al2O3 substrate were investigated. Metal organic chemical vapor deposition based AlGaAs films were grown on a transparent Al2O3 substrate, using a GaAs film as the buffer layer for the post-growth of the AlGaAs film. It was found that a higher Al composition in AlGaAs film on the Al2O3 substrate was observed when GaAs buffer layer was thermally treated. Notably, a resistivity of 0.018 Ω/cm was obtained from the AlGaAs film grown on the Al2O3 substrate, almost equivalent to that for GaAs substrate. These results thus support the position that AlGaAs films grown on a transparent Al2O3 substrate can be attractive for use in solar cells or light-emitting diodes.
Journal: Materials Letters - Volume 123, 15 May 2014, Pages 1–5