Growth and material applications of narrow-bandgap III-V-N alloy semiconductor quantum nano-structures

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In-containing III-V-N type alloy semiconductors, such as InAsN, InGaAsN, InGaPN and InPN, have been grown by MOVPE in the form of thin films or quantum dots. The growth characteristics and material properties, such as bandgap reduction and luminescence, have been clarified in relation with the N incorporation. In particular, room-temperature photoluminescence of 1.2μm wavelength has been realized with the InAsN quantum dots. A novel potential of III-V-N type alloy semiconductors for useful applications has been demonstrated with this study.