Phonon-assisted transitions of bound excitons in diamond: Analysis by mirror symmetry
Phonon-assisted transitions of bound excitons in diamond: Analysis by mirror symmetry
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金刚石中束缚激子的声子辅助跃迁:镜面对称分析
DOI:
10.1103/physrevb.101.205204
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发表时间:
2020
影响因子:
3.7
通讯作者:
Naka Nobuko
中科院分区:
文献类型:
--
作者:
Kubo Yoshiki;Takahata Mitsuyoshi;Temgoua Solange;Issaoui Riadh;Barjon Julien;Naka Nobuko
This study aims at a quantitative understanding of the optical spectra taken from bound excitons weakly coupled to phonons in indirect semiconductors, which had been missing for decades. Insights on the properties of excitons bound at neutral acceptor impurities are obtained by analyzing the spectra reported for diamond with appropriate boron doping [Y. Kubo , Appl. Phys. Lett. 114, 132104 (2019)APPLAB0003-695110.1063/1.5089894]. We focus on the mirror symmetry holding between phonon-assisted absorption and luminescence simultaneously regarding energies, linewidths, and intensities. New analytic expressions are proposed to reproduce the spectra of phonon-assisted recombination lines. The detailed analysis reveals the contribution from excited bound-exciton states whose origin is discussed and modeled. Taking them into account improves simulation of the bound-exciton optical spectra in indirect band-gap semiconductors up to a quantitative level.
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10.1103/physrevb.17.1808
发表时间:
1978
期刊:
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影响因子:
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