Fractoluminescence spectra in crystalline quartz

被引：47

作者：

Kawaguchi, Y ^{[1
]}

机构：

[1] Chugoku Natl Ind Res Inst, Hiroshima 7370197, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1998年 / 37卷 / 4A期

关键词：

fractoluminescence; fractoemission; fracture; luminescence; quartz; oxygen vacancy; defect;

D O I：

10.1143/JJAP.37.1892

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Fractoluminescence and charge emission upon three-point-bending fracture of synthetic and natural quartz crystals have been studied. Broad luminescence bands centered at about 2.0, 2.9, and 5.0 eV have been observed in both cases. Time-resolved luminescence measurement could be performed on the 2.0 and 2.9 eV bands. The 2.9 eV band has a maximum intensity at about 5 ms after the fracture, and this band decayed within about 13 ms. On the other hand, the decay profile of the 2.0 eV band differed between synthetic and natural crystals. The 2.9 eV band might be due to the relaxation of the oxygen vacancy on the fracture surface, as in the case of silica glass. The 2.0 eV band seems to be due to an impurity center.

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页码：1892 / 1896

页数：5

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