抄録
The photoacoustic (PA) spectra of layer halide BiI3 has been studied by a piezoelectric transducer as a detector in the temperature region from 115 K to room temperature. Four peaks of G (1.97 eV), A (2.03 eV), B (2.17 eV), and C (2.38 eV) are observed in the PA spectra at 115 K. Peaks A and B are explained by the transition of the ground and the first excited states of the direct exciton. The onset of the transitions from the spin-orbit split valence band occurs at peak C. The decrease of the PA signal which begins at peak C is interpreted by the generation of the different pathways for the relaxation of the excited carriers. Since the intensity of the peak G varies from sample to sample and the peak has not been observed in the photoluminescence measurements, the origin of the peak G is attributed to the nonradiative transitions of the extrinsic centers. This capability to observe the nonradiative-decay processes is one of the chief advantages for the PA measurements.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 886-890 |
| ページ数 | 5 |
| ジャーナル | Physical Review B |
| 巻 | 37 |
| 発行部数 | 2 |
| DOI | |
| 出版物ステータス | 出版済み - 1 1 1988 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
これを引用
Low-temperature photoacoustic spectra of BiI3 single crystals. / Ikari, T.; Shigetomi, S.; Koga, Y.; Nishimura, H.; Yayama, Hideki; Tomokiyo, A.
：: Physical Review B, 巻 37, 番号 2, 01.01.1988, p. 886-890.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Low-temperature photoacoustic spectra of BiI3 single crystals
AU - Ikari, T.
AU - Shigetomi, S.
AU - Koga, Y.
AU - Nishimura, H.
AU - Yayama, Hideki
AU - Tomokiyo, A.
PY - 1988/1/1
Y1 - 1988/1/1
N2 - The photoacoustic (PA) spectra of layer halide BiI3 has been studied by a piezoelectric transducer as a detector in the temperature region from 115 K to room temperature. Four peaks of G (1.97 eV), A (2.03 eV), B (2.17 eV), and C (2.38 eV) are observed in the PA spectra at 115 K. Peaks A and B are explained by the transition of the ground and the first excited states of the direct exciton. The onset of the transitions from the spin-orbit split valence band occurs at peak C. The decrease of the PA signal which begins at peak C is interpreted by the generation of the different pathways for the relaxation of the excited carriers. Since the intensity of the peak G varies from sample to sample and the peak has not been observed in the photoluminescence measurements, the origin of the peak G is attributed to the nonradiative transitions of the extrinsic centers. This capability to observe the nonradiative-decay processes is one of the chief advantages for the PA measurements.
AB - The photoacoustic (PA) spectra of layer halide BiI3 has been studied by a piezoelectric transducer as a detector in the temperature region from 115 K to room temperature. Four peaks of G (1.97 eV), A (2.03 eV), B (2.17 eV), and C (2.38 eV) are observed in the PA spectra at 115 K. Peaks A and B are explained by the transition of the ground and the first excited states of the direct exciton. The onset of the transitions from the spin-orbit split valence band occurs at peak C. The decrease of the PA signal which begins at peak C is interpreted by the generation of the different pathways for the relaxation of the excited carriers. Since the intensity of the peak G varies from sample to sample and the peak has not been observed in the photoluminescence measurements, the origin of the peak G is attributed to the nonradiative transitions of the extrinsic centers. This capability to observe the nonradiative-decay processes is one of the chief advantages for the PA measurements.
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U2 - 10.1103/PhysRevB.37.886
DO - 10.1103/PhysRevB.37.886
M3 - Article
AN - SCOPUS:0000975255
VL - 37
SP - 886
EP - 890
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 2
ER -