On the correlation between high-order bands and some photoluminescence lines in neutron-irradiated FZ silicon

Journal Article · Sun Oct 15 00:00:00 EDT 1989 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.344041· OSTI ID:5374549

Zhong, L; Wang, Z; Wan, S; Lin, L ^[1]

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1. Institute of Semiconductors, Chinese Academy of Sciences, Beijing, People's Republic of China (CN)

The defects in float-zone silicon irradiated by fast neutron with fluences up to 4.0{times}10{sup 18} {ital n}/cm{sup 2}, followed by various heat treatments, have been studied by low-temperature photoluminescence (PL) and infrared absorption measurement with emphasis upon the high-order band (HOB) and its relationship with the commonly observed PL-lines such as {ital I}{sub 1} (1.018 eV) and {ital I}{sub 3}(1.039 eV). It has been shown that band 1124 cm{sup {minus}1}, unlike the other higher-order bands, is considerably broader for the sample annealed at low temperature (for example, 385 {degree}C) with FWHM as large as 3 meV and is apparently narrowed as the anneal temperature was increased. We have obtained the {ital I}{sub 3} line and its phonon replicas in the near-infrared absorption measurement, further proving the transition involved in the {ital I}{sub 3} defect center to be electronic in nature. The combination of luminescence and absorption experiment results demonstrated that the HOB could be well developed after PL lines such as {ital I}{sub 1} and {ital I}{sub 3} disappeared completely, or vice versa. PL lines could be observed before the HOB emerged, therefore ruling out the possibility proposed by earlier authors that the HOB could be correlated with some PL lines.

• OSTI ID: 5374549
• Journal Information: Journal of Applied Physics; (USA), Vol. 66:8; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
SILICON
PHYSICAL RADIATION EFFECTS
ABSORPTION SPECTROSCOPY
CRYSTAL DEFECTS
HEAT TREATMENTS
INFRARED RADIATION
NEUTRONS
PHONONS
PHOTOLUMINESCENCE
ULTRALOW TEMPERATURE
ZONE MELTING
BARYONS
CRYSTAL STRUCTURE
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
HADRONS
LUMINESCENCE
MELTING
NUCLEONS
PHASE TRANSFORMATIONS
QUASI PARTICLES
RADIATION EFFECTS
RADIATIONS
SEMIMETALS
SPECTROSCOPY
360605* - Materials- Radiation Effects