Examination of Possibility of Formation of Aggregated Color Centers in Inorganic Glasses and Their Application to Photochemical Hole Burning

无机玻璃中聚集色心形成的可能性及其在光化学烧孔中的应用

• 批准号: 01550597
• 负责人: HOSONO Hideo
• 金额: $ 1.28万
• 依托单位: Nagoya Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01550597/
• 关键词: Point defect; photochromism; calcium aluminate glass; vacancy; ion implantation oxygen; 感光性ガラス; カルシウムアルミネ-トガラス; F中心

Aggregated F-centers such as M and R-centers show photochemical hole burning (PHB) in alkali halide crystals. If aggregated oxygen-deficient type point defects are produced in inorganic glasses, we may expect a possibility that PHB is realized in inorganic glasses without accompanying doping of a dye molecule as a PHB center. In this study, we examined the formation of aggregated color centers in inorganic glasses and of a pertinent hole in their optical absorption bands with a tunable laser light.The results obtained are summarized as follows :(1) Calcium aluminate glasses melted in strongly reduced atmosphere were found to show photochromism. Light-induced EPR led the conclusion that the photochromic center is an electron trapped at the site of oxygen vacancy surrouned by Ca^<2+> ions, i. e., likeF^+ center in CaO. No spectral hole formation was observed when the laser light illuminated the absorption band centered around 560 nm at 4.2K.(2) Two types of oxygen-deficient defects were produced in SiO_2 glass by implantation of Si^+orP^+, Si-Si bonds and neutral oxygen vacancies. Their concentrations are compatible to those of implanted ions, suggesting that implanted ions react chemically with oxygen in the substrate structure leaving oxygen deficiency defects. No zoro-phonon line was observed for either of these defects.

诸如M和R-Centers之类的总F-中心在碱卤化物晶体中显示光化学孔燃烧（PHB）。如果在无机玻璃中产生骨料缺氧的型点缺陷，我们可能希望在无机玻璃中实现PHB，而不会伴随着染料分子作为PHB中心的掺杂。在这项研究中，我们检查了无机玻璃中的聚合颜色中心的形成，以及具有可调激光的光吸收带中相关孔的形成。所获得的结果总结如下：（1）钙铝液体在大气中融化的钙铝制玻璃表现出表现出的大气中，显示出光化的光含量。光引起的EPR得出了一个结论，即光致变色中心是被困在Ca^<2+>离子的氧气空位位置的电子。 e。，例如cao中的f^+中心。当激光光在4.2K时以560 nm约为560 nm约为560 nm左右的吸收带照亮了光谱孔的形成。（2）通过植入Si^+ORP^+，Si-Si键，Si-Si键和中性氧气空间，在SIO_2玻璃中产生了两种类型的缺氧缺陷。它们的浓度与植入离子的浓度兼容，这表明植入离子在底物结构中与氧的化学反应，留下缺氧缺陷。对于这两个缺陷，都没有观察到Zoro-Phonon线。

项目成果

H. Hosono, N. Asada, and Y. Abe: "Properties and Mechanism in Reduced Calcium Aluminate Glasses" J. Appl. Phys. 67. 2840-2847 (1991)

H. Hosono、N. Asada 和 Y. Abe：“还原铝酸钙玻璃的特性和机理”J. Appl。

H.Hosono: "Properties and Mechanism of Photochromism in Reduced Calcium Aluminate Glasses" Journal of Applied Physics. (1990)

H.Hosono：“还原铝酸钙玻璃中光致变色的特性和机制”应用物理学杂志。

H. Hosono, and R. A. Weeds: "Information about Interaction of Implanted Ions with Amorphous Silica obtained from Structural Defects" Transaction of Materials Society of Japan, submitted for publication.

H. Hosono 和 R. A. Weeds：“关于植入离子与从结构缺陷中获得的无定形二氧化硅相互作用的信息”，日本材料学会汇刊，提交出版。

H.Hosono: "Information about interaction of implanted ions with amorphous Silica obtained from structural defects" Transaction of Materials Research Society of Japan. (1991)

H.Hosono：“关于注入离子与从结构缺陷获得的非晶二氧化硅相互作用的信息”日本材料研究学会汇刊。

H・HOSONO: "Information about Interaction of Implanted Ions with Amorphous Silica Obtained from Structural Defects" Transaction of Materials Research Society of Japan.

H. HOSONO：“从结构缺陷中获得的有关注入离子与无定形二氧化硅相互作用的信息”日本材料研究会会刊。