Effect of oxygen impurity on the efficiency of the formation of complexes with H-bond and aggregation of color centers in lithium fluoride

Nebogin S. A.; Bryukvina L. I.; Ivanov N. A.; Glazunov D. S.

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Effect of oxygen impurity on the efficiency of the formation of complexes with H-bond and aggregation of color centers in lithium fluoride

机译：氧气杂质对锂氟化锂的H键和彩色中心聚集效率的影响

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The effect of impurities on the efficiency of the formation of color centers and hydrogen-bonded molecular complexes upon exposure to various radiations in lithium fluoride crystals grown in air is studied. The results of experiments for measuring optical properties, IR vibrational spectra, luminescence, and thermally stimulated luminescence are presented. The fact that the band in the range of 1800-2300 cm(-1) corresponds to stretching vibrations of a complex with strong hydrogen bond is proved based on the Fermi-resonance perturbation in the region of 2080 cm(-1), shaped as the Evans hole and bands A, B, and C. It is shown that the composition of these complexes includes an OH- ion and an HF molecule. The crucial role of O-2aEuro' V (a) (+) oxygen dipoles in the aggregation efficiency and gradient distribution of color centers and radiation resistance of hydroxyl ions is revealed. It is shown that products of radiation decomposition of OH- ions stimulate, while decay of O-2aEuro' V (a) (+) dipoles suppress, the formation of positively charged color centers.

机译：研究了空气中生长的氟化锂晶体在不同辐射下，杂质对色心和氢键分子络合物形成效率的影响。给出了测量光学性质、红外振动光谱、发光和热激发光的实验结果。基于2080 cm（-1）区域的费米共振微扰，证明了1800-2300 cm（-1）范围内的能带对应于具有强氢键的络合物的拉伸振动，其形状为埃文斯空穴和能带a、B和C。结果表明，这些络合物的组成包括OH-离子和HF分子。揭示了O-2aEuro′V（a）（+）氧偶极子在羟基离子的聚集效率、色心梯度分布和抗辐射性中的关键作用。结果表明，OH-离子的辐射分解产物刺激，而O-V（a）（+）偶极子的衰变抑制正电荷色心的形成。

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《Physics of the solid state》 |2017年第6期|共7页
作者
Nebogin S. A.; Bryukvina L. I.; Ivanov N. A.; Glazunov D. S.;
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Irkutsk Natl Res Tech Univ Ul Lermontova 83 Irkutsk 664074 Russia;

Russian Acad Sci Siberian Branch Irkutsk Div Inst Laser Phys Ul Lermontova 130a Irkutsk 664033 Russia;

Irkutsk Natl Res Tech Univ Ul Lermontova 83 Irkutsk 664074 Russia;

Russian Acad Sci Siberian Branch Irkutsk Div Inst Laser Phys Ul Lermontova 130a Irkutsk 664033 Russia;

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中图分类固体物理学;
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机译：氧气杂质对锂氟化锂的H键和彩色中心聚集效率的影响
6. Formation of Color Centers and Molecular Complexes with a Weak Hydrogen Bond in Lithium Fluoride Crystals Depending on the Form of OH ˉ Inclusion [J] . S. A. Nebogin, L. I. Bryukvina, N. A. Ivanov, Russian journal of physical chemistry, B. . 2018,第2期

机译：根据OH <上标>ˉ夹杂物的形式，在氟化锂晶体中形成颜色中心和分子复合物。
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Effect of oxygen impurity on the efficiency of the formation of complexes with H-bond and aggregation of color centers in lithium fluoride

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