Properties of (Ga0.47In0.53)As epitaxial layers grown by metalorganic vapor phase epitaxy (MOVPE) using alternative arsenic precursors

Protzmann, H.; Höhnsdorf, F.; Spika, Z.; Stolz, W.; Göbel, E. O.; Müller, Marcus; Lorberth, Jörg

doi:10.1016/s0022-0248(96)00640-9

Cited by 7 publications

(1 citation statement)

References 12 publications

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“…The above noted features of the effective alloy band structure are consistent with the narrow low-temperature PL line width (2 − 4 meV, Ref. 56), the high mobility of electrons (20, 000 − 80, 000 cm 2 V −1 s −1 , Refs. 56 and 73) and holes (600 − 1000 cm 2 V −1 s −1 , Refs.…”

Section: B Semiconductor Alloys For Telecommunication Laserssupporting

confidence: 78%

Localization of Electronic States in III-V Semiconductor Alloys: A Comparative Study

Pashartis

Rubel

2017

Phys. Rev. Applied

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Electronic properties of III-V semiconductor alloys are examined using first principles with the focus on the spatial localization of electronic states. We compare localization at the band edges due to various isovalent impurities in a host GaAs including its impact on the photoluminescence line widths and carrier mobilities. The extremity of localization at the band edges is correlated with the ability of individual elements to change the band gap and the relative band alignment. Additionally, the formation energies of substitutional defects are calculated and linked to challenges associated with the growth and formability of alloys. A spectrallyresolved inverse participation ratio is used to map localization in prospective GaAs-based materials alloyed with B, N, In, Sb, and Bi for 1.55 µm wavelength telecommunication lasers. This analysis is complemented by a band unfolding of the electronic structure and discussion of implications of localization on the optical gain and Auger losses. Correspondence with experimental data on broadening of the photoluminescence spectrum and charge carrier mobilities show that the localization characteristics can serve as a guideline for engineering of semiconductor alloys.

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Section: B Semiconductor Alloys For Telecommunication Laserssupporting

confidence: 78%