Characterization of Nonuniformity in Semi-Insulating LEC GaAs by Photoluminescence Spectroscopy
スポンサーリンク
概要
- 論文の詳細を見る
Nonuniform distributions of deep levels in semi-insulating (S.I.) LEC GaAs are investigated by photoluminescence measurements at 4.2 K. Two emission bands at 0.65 and 0.80 eV always appear in S.I. crystals. The intensity profile for the 0.65-eV band is U- or W-shaped along a wafer diameter, corresponding to the etch-pit-density (EPD) profile, while that for the 0.80-eV band shows an inverse profile with respect to the EPD profile. This profile is strong evidence for the idea that the 0.65-eV band is associated with the main electron trap (EL2) present in S.I. crystals. The origin of the 0.80-eV band is considered to be the microdefects generated dominantly in the low-dislocation-density region.
- 社団法人応用物理学会の論文
- 1982-04-20
著者
関連論文
- The Staebler-Wronski Effect on Defect Luminescence in Hydrogenated Amorphous Silicon
- Charge State Density Profiling of EL2 Deep Donor in GaAs Using Selective Excitation Luminescence
- Photoluminescence Analysis of 'New Donors' in Silicon
- Photoluminescence Analysis of Annealed Silicon Crystals
- Photoluminescence Spectra of Thermal Donors in Silicon
- Direct Observation of Dislocations in a LEC-GaP Crystal by Light Scattering Method
- Photoluminescence Associated with Nitrogen in Silicon
- Recovery Effect of Deep Level Luminescence Induced by Below Band-Gap Excitation in GaAs
- Characterization of Residual Impurities in Highly Pure Si Crystals by Photoluminescence Technique : C-3: CRYSTAL TECHNOLOGY
- Fatigue and Recovery Effects of the 0.65-eV Emission Band in GaAs
- A New Type of Etch-Pit in an LEC-GaP Crystal
- Characterization of Nonuniformity in Semi-Insulating LEC GaAs by Photoluminescence Spectroscopy
- Mapping of EL2-Related Luminescence on Semi-Insulating GaAs Wafers at Room Temperature : Semiconductors and Semiconductors Devices
- Photoluminescence Analyses of Shallow Impurities in Silicon
- Photoluminescence Analysis of Impurities in Epitaxial Silicon Crystals