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Proceedings Paper

Formation mechanism of defects in annealed InP
Author(s): Yujie Han; Xunlang Liu; Jinghua Jiao; Lanying Lin
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Paper Abstract

Dynamical formation mechanism of defects in the annealed nominally undoped semi-insulating InP obtained by high pressure, high temperature annealing of high purity materials is proposed. Local vibrational modes in tenths of InP samples reveal clearly existence of complexes related to hydrogen. Complexes of vacancy at indium site with one to four hydrogen atoms and isolated hydrogen or hydrogen dimers, complexes of hydrogen with various impurities are investigated by FTIR. Hydrogen can act as an actuator for generation of antistructure defects. Fully hydrogenated indium vacancy dissociates leaving large lattice relaxation behind, deep donors, many larger complexes involving phosphorus at indium site and isolated hydrogen defects are created in nominally undoped InP after annealing. Also created are acceptor levels such as vacancy at indium site. Carrier charge compensation mechanism in nominally undoped InP upon annealing at high temperature is given. Microscopic models of hydrogen related defects are given. Structural, electronic and vibrational properties of LVMs related to hydrogen as well as their temperature effect are discussed.

Paper Details

Date Published: 22 June 1998
PDF: 0 pages
Proc. SPIE 3419, Optoelectronic Materials and Devices, 341915 (22 June 1998); doi: 10.1117/12.311026
Show Author Affiliations
Yujie Han, Institute of Semiconductors (Canada)
Xunlang Liu, Institute of Semiconductors (China)
Jinghua Jiao, Institute of Semiconductors (China)
Lanying Lin, Institute of Semiconductors (China)

Published in SPIE Proceedings Vol. 3419:
Optoelectronic Materials and Devices
Marek Osinski; Yan-Kuin Su, Editor(s)

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