High-Quality (211)B CdTe on (211)Si Substrates Using Metalorganic Vapor-Phase Epitaxy
High-quality (211)B CdTe buffer layers are required during Hg 1− x Cd x Te heteroepitaxy on Si substrates. In this study, direct metalorganic vapor-phase epitaxy (MOVPE) of (211)B CdTe on Si, as well as CdTe on Si using intermediate Ge and ZnTe layers, has been achieved. Tertiary butyl arsine was us...
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Veröffentlicht in: | Journal of electronic materials 2011-08, Vol.40 (8), p.1790-1794 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | High-quality (211)B CdTe buffer layers are required during Hg
1−
x
Cd
x
Te heteroepitaxy on Si substrates. In this study, direct metalorganic vapor-phase epitaxy (MOVPE) of (211)B CdTe on Si, as well as CdTe on Si using intermediate Ge and ZnTe layers, has been achieved. Tertiary butyl arsine was used as a precursor to enable As surfactant action during CdTe MOVPE on Si. The grown CdTe/Si films display a best x-ray diffraction rocking-curve full-width at half-maximum of 64 arc-s and a best Everson etch pit density of 3 × 10
5
cm
−2
. These values are the best reported for MOVPE-grown (211)B CdTe/Si and match state-of-the-art material grown using molecular-beam epitaxy. |
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ISSN: | 0361-5235 1543-186X |
DOI: | 10.1007/s11664-011-1586-0 |