作者: Jörg Neugebauer , Chris G. Van De Walle
DOI: 10.1016/S0080-8784(08)62713-1
关键词: Atomic physics 、 Crystallography 、 Acceptor 、 Band gap 、 Epitaxy 、 Semiconductor 、 Chemistry 、 Gallium 、 Vacancy defect 、 Hydrogen 、 Magnesium
摘要: This chapter discusses the theory of hydrogen in gallium nitrite (GaN). The most commonly used acceptor is magnesium (Mg) and consequently, investigations have focused on interaction with Mg. atomic geometry (AB N site) found for Mg–H complex GaN very different from well-established structure acceptor–H complexes other semiconductors where a BC configuration preferred. For (Ga) vacancy, it was that one, two, three, or four atoms can be accommodated levels are removed bandgap as more hydrogens attached. isolated Ga vacancy triple acceptor; 3– charge state, triply degenerate defect level about 1 eV above valence band fully occupied. To identify role achieving p -type GaN, analyzes case absent, corresponding to molecular-beam epitaxy (MBE) growth.