Effect of Hydrogen on the Electronic Properties of GaAs_{1-y}N_y Heterostructures

• Authors: M. Bissiri , V. Gaspari , G. Baldassarri H. v. H. , F. Ranalli , A. Polimeni , M. Capizzi , A. Nucara , M. Geddo , M. Fischer , M. Reinhardt , A. Forchel
• Languages of publication: EN

Abstracts

EN

We have performed photoluminescence measurements in order to study the optical properties of hydrogenated GaAs_{1-y}N_y/GaAs heterostructures for y ranging from 0 to 0.03. Hydrogen irradiation leads to: (i) a progressive passivation of N-related recombination lines for low N content (y≈ 0.001); (ii) a sizable blue shift of the band gap in the "alloy" limit (y≈0.01). Thermal annealing restores the optical properties samples had before hydrogenation. These results can be accounted for by the formation of N^- -H^+ complexes and demonstrate that hydrogen irradiation provides a powerful tool for the analysis of photoluminescence spectra of GaAs_{1-y}N_y.

Keywords

EN

78.66.Fd; 71.55.Eq; 78.55.Cr

Discipline

• 78.55.Cr: III-V semiconductors
• 71.55.Eq: III-V semiconductors
• 78.66.Fd: III-V semiconductors

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2001
• Volume: 100
• Issue: 3
• Pages: 365-371

Dates

published

2001-09

received

2001-06-01

Contributors

author

M. Bissiri

• INFM-Dip. di Fisica, Univ. di Roma "La Sapienza", 00185 Roma, Italy

author

V. Gaspari

• INFM-Dip. di Fisica, Univ. di Roma "La Sapienza", 00185 Roma, Italy

author

G. Baldassarri H. v. H.

• INFM-Dip. di Fisica, Univ. di Roma "La Sapienza", 00185 Roma, Italy

author

F. Ranalli

• INFM-Dip. di Fisica, Univ. di Roma "La Sapienza", 00185 Roma, Italy

author

A. Polimeni

• INFM-Dip. di Fisica, Univ. di Roma "La Sapienza", 00185 Roma, Italy

author

M. Capizzi

• INFM-Dip. di Fisica, Univ. di Roma "La Sapienza", 00185 Roma, Italy

author

A. Nucara

• INFM-Dip. di Fisica, Univ. di Roma "La Sapienza", 00185 Roma, Italy

author

M. Geddo

• INFM-Dip. di Fisica, Univ. di Parma, 43010 Fontanini (Parma), Italy

author

M. Fischer

• Universität Würzburg, Technische Physik, 97074 Würzburg, Germany

author

M. Reinhardt

• Universität Würzburg, Technische Physik, 97074 Würzburg, Germany

author

A. Forchel

• Universität Würzburg, Technische Physik, 97074 Würzburg, Germany

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Identifiers

DOI

10.12693/APhysPolA.100.365