Study of Defects Produced by the Growth, Post Treatment and Fabrication of Quartz.
Study of Defects Produced by the Growth, Post Treatment and Fabrication of Quartz.
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石英的生长、后处理和制造所产生的缺陷的研究。
DOI：
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发表时间：
1983
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通讯作者：
W. Sibley
中科院分区：
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作者：
L. Halliburton;Joel J. Martin;W. Sibley
摘要：我们正在使用多种实验技术来研究市售高质量合成石英中的各种生长缺陷和辐射引起的缺陷。间隙离子如 H(+)、Li(+) 和 Na(+) 以及被氧离子捕获的辐射引起的空穴充当位于铝附近的电荷补偿器，这产生了 Al-OH(-)、Al-Li(+)、Al-Na(+) 和 Al-空穴中心。对于各种扫描和未扫描的样品，这些补偿铝中心的绝对浓度已确定为辐照和退火温度的函数。各种处理方法只是在铝位点将一种类型的补偿器替换为另一种类型的补偿器，并且在实验误差范围内，对于给定的样品，铝中心的总和保持恒定。这种对氢扫过样品中所有铝离子的直接解释强烈表明 1/3306 cm 和 1/3367 cm 红外波段与 Al-OH(-) 中心相关。此外，ESR 和 IR 结果表明，随机选择的优质石英棒的铝含量可能会存在一个数量级的变化。对 5MHz 第 5 泛音谐振器毛坯的声学损耗测量表明，没有可归因于 Al-Li(+) 中心的损耗峰值。 ESR 发现了一系列与氧空位相关的中心。已在室温以下对 95K 辐射石英的热受激发光 (TSL) 进行了研究。
Abstract : We are using a number of experimental techniques to investigate the various as-grown and radiation-induced defects in commercially available high-quality synthetic quartz. Interstitial ions such as H(+), Li(+), and Na(+) as well as radiation-induced holes trapped at oxygen ions act as charge compensator's located adjacent to the aluminum and this gives rise to Al-OH(-), Al-Li(+), Al-Na(+), and Al-hole centers. Absolute concentrations of these compensated aluminum centers have been determined as a function of irradiation and annealing temperature for a variety of samples, both swept and unswept. The various treatments simply exchange one type of compensator for another at the aluminum sites and, within experimental error, the sum of the aluminum centers remains constant for a given sample. This direct accountability of all the aluminum ions in hydrogen-swept samples strongly suggests that the 1/3306 cm and 1/3367 cm infrared bands are associated with the Al-OH(-) center. Also, the ESR and IR results show that the aluminum content of randomly selected bars of high-quality quartz can vary by an order of magnitude. Acoustic loss measurements on a 5MHz 5th overtone resonator blank show no loss peaks that can be attributed to the Al-Li(+) center. A series of oxygen-vacancy-associated centers have been discovered by ESR. An investigation of the thermally stimulated luminescence, TSL, from quartz irradiated at 95K has been made below room temperature.