Electroluminescence of ZnO-based semiconductor heterostructures
Journal Article
·
· Quantum Electronics (Woodbury, N.Y.)
- Institute on Laser and Information Technologies, Russian Academy of Sciences, Shatura, Moscow Region (Russian Federation)
Using pulsed laser deposition, we have grown n-ZnO/p-GaN, n-ZnO/i-ZnO/p-GaN and n-ZnO/n-Mg{sub 0.2}Zn{sub 0.8}O/i-Cd{sub 0.2}Zn{sub 0.8}O/p-GaN light-emitting diode (LED) heterostructures with peak emission wavelengths of 495, 382 and 465 nm and threshold current densities (used in electroluminescence measurements) of 1.35, 2, and 0.48 A cm{sup -2}, respectively. Because of the spatial carrier confinement, the n-ZnO/n-Mg{sub 0.2}Zn{sub 0.8}O/i-Cd{sub 0.2}Zn{sub 0.8}O/p-GaN double heterostructure LED offers a higher electroluminescence intensity and lower electroluminescence threshold in comparison with the n-ZnO/p-GaN and n-ZnO/i-ZnO/p-GaN LEDs. (lasers)
- OSTI ID:
- 21541788
- Journal Information:
- Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 1 Vol. 41; ISSN 1063-7818
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHALCOGENIDES
COMPARATIVE EVALUATIONS
CURRENTS
DEPOSITION
ELECTRIC CURRENTS
ELECTROLUMINESCENCE
ELECTROMAGNETIC RADIATION
EMISSION
ENERGY BEAM DEPOSITION
EVALUATION
GALLIUM COMPOUNDS
GALLIUM NITRIDES
IRRADIATION
LASER RADIATION
LIGHT EMITTING DIODES
LUMINESCENCE
MATERIALS
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTON EMISSION
PNICTIDES
PULSED IRRADIATION
RADIATIONS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SEMICONDUCTOR MATERIALS
SURFACE COATING
THRESHOLD CURRENT
ZINC COMPOUNDS
ZINC OXIDES
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHALCOGENIDES
COMPARATIVE EVALUATIONS
CURRENTS
DEPOSITION
ELECTRIC CURRENTS
ELECTROLUMINESCENCE
ELECTROMAGNETIC RADIATION
EMISSION
ENERGY BEAM DEPOSITION
EVALUATION
GALLIUM COMPOUNDS
GALLIUM NITRIDES
IRRADIATION
LASER RADIATION
LIGHT EMITTING DIODES
LUMINESCENCE
MATERIALS
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTON EMISSION
PNICTIDES
PULSED IRRADIATION
RADIATIONS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SEMICONDUCTOR MATERIALS
SURFACE COATING
THRESHOLD CURRENT
ZINC COMPOUNDS
ZINC OXIDES