Energy levels of donor and acceptor dopants and electron and hole mobilities in. cap alpha. -Al/sub 2/O/sub 3/

Journal Article · Mon Dec 31 23:00:00 EST 1979 · J. Am. Ceram. Soc.; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1980.tb10642.x· OSTI ID:5523080

Tiku, S K; Kroeger, F A

The relation between activation energy of conduction and the position of energy levels of donors and acceptors is discussed. Level positions of donor and acceptor dopants in Al/sub 2/O/sub 3/ at 1600/sup 0/C are recalculated from published data. Carrier concentrations calculated from the new level positions lead to carrier mobilities with values scattering around 1 cm/sup 2/V.s, leaving the question of which conduction model is preferable unanswered. Relations of acceptor level positions with values of ionization potentials, redox potentials, and charge transfer bands are used to predict level positions for other transition metal acceptors.

• Research Organization: Univ. of Southern California, Los Angeles
• OSTI ID: 5523080
• Journal Information: J. Am. Ceram. Soc.; (United States), Journal Name: J. Am. Ceram. Soc.; (United States) Vol. 63:1-2; ISSN JACTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ACTIVATION ENERGY
ALKALINE EARTH METALS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
COBALT
CRYOGENIC FLUIDS
DOPED MATERIALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
ENERGY
ENERGY LEVELS
FLUIDS
HOLE MOBILITY
HYDROGEN
IONIC CONDUCTIVITY
IRON
MAGNESIUM
MATERIALS
METALS
MOBILITY
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
TITANIUM
TRANSITION ELEMENTS