Band tails and deep-defect density of states in hydrogenated amorphous germanium - Université de Rennes Accéder directement au contenu
Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 1991

Band tails and deep-defect density of states in hydrogenated amorphous germanium

Résumé

A correlation between the midgap-defect-state density and the Urbach energy is experimentally observed in undoped hydrogenated amorphous germanium (a-Ge:H) thin films prepared by the glow-discharge technique under different conditions. Since these samples show thermally induced metastable effects, the data are analyzed with a thermal-equilibration model recently proposed for a-Si:H. This yields a neutral Ge dangling-bond (D0) energy at 0.50–0.55 eV above the valence-band edge.
Fichier non déposé

Dates et versions

hal-01332262 , version 1 (15-06-2016)

Identifiants

Citer

C. Godet, Y. Bouizem, L. Chahed, I. El Zawawi, M. L. Thèye, et al.. Band tails and deep-defect density of states in hydrogenated amorphous germanium. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 1991, 44 (11), pp.5506. ⟨10.1103/PhysRevB.44.5506⟩. ⟨hal-01332262⟩
173 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More