MOVPE growth of InAs/InP QDs on directly-bonded InP/Si substrate

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InP/Si substrate has been fabricated by employing wet-etching and wafer direct bonding technique. The surface of the InP/Si substrate was very smooth and no strain was observed. On top of the substrate, InAs/InP quantum dots (QDs) have been monolithically grown using metal organic vapor phase epitaxy (MOVPE). According to photo-luminescence (PL) measurement, almost the same intensity, peak wavelength and full width half of maximum (FWHM) have been observed compared to QDs on InP substrate.

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